XmlSerializer XmlSerializer XmlSerializer XmlSerializer Constructors

Definition

Überlädt

XmlSerializer() XmlSerializer() XmlSerializer()

Initialisiert eine neue Instanz der XmlSerializer-Klasse.Initializes a new instance of the XmlSerializer class.

XmlSerializer(Type) XmlSerializer(Type) XmlSerializer(Type)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und XML-Dokumente in Objekte des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize XML documents into objects of the specified type.

XmlSerializer(XmlTypeMapping) XmlSerializer(XmlTypeMapping) XmlSerializer(XmlTypeMapping)

Initialisiert eine Instanz der XmlSerializer-Klasse mithilfe eines Objekts, das einen Typ einem anderen zuweist.Initializes an instance of the XmlSerializer class using an object that maps one type to another.

XmlSerializer(Type, String) XmlSerializer(Type, String) XmlSerializer(Type, String)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und XML-Dokumente in Objekte des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize XML documents into objects of the specified type. Gibt den Standardnamespace für alle XML-Elemente an.Specifies the default namespace for all the XML elements.

XmlSerializer(Type, Type[]) XmlSerializer(Type, Type[]) XmlSerializer(Type, Type[])

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und XML-Dokumente in ein Objekt eines angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize XML documents into object of a specified type. Wenn eine Eigenschaft oder ein Feld ein Array zurückgibt, werden durch den extraTypes-Parameter die Objekte angegeben, die in das Array eingefügt werden können.If a property or field returns an array, the extraTypes parameter specifies objects that can be inserted into the array.

XmlSerializer(Type, XmlAttributeOverrides) XmlSerializer(Type, XmlAttributeOverrides) XmlSerializer(Type, XmlAttributeOverrides)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und XML-Dokumente in Objekte des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize XML documents into objects of the specified type. Jedes zu serialisierende Objekt kann selbst Instanzen von Klassen enthalten, die von dieser Überladung durch andere Klassen überschrieben werden können.Each object to be serialized can itself contain instances of classes, which this overload can override with other classes.

XmlSerializer(Type, XmlRootAttribute) XmlSerializer(Type, XmlRootAttribute) XmlSerializer(Type, XmlRootAttribute)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und ein XML-Dokument in ein Objekt des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize an XML document into object of the specified type. Außerdem wird die als XML-Stammelement zu verwendende Klasse angegeben.It also specifies the class to use as the XML root element.

XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte vom Typ Object in Instanzen eines XML-Dokuments serialisieren und Instanzen eines XML-Dokuments in Objekte vom Typ Object deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of type Object into XML document instances, and deserialize XML document instances into objects of type Object. Jedes zu serialisierende Objekt kann selbst Instanzen von Klassen enthalten, die von dieser Überladung durch andere Klassen überschrieben werden können.Each object to be serialized can itself contain instances of classes, which this overload overrides with other classes. Diese Überladung gibt außerdem den Standardnamespace für alle XML-Elemente sowie die als XML-Stammelement zu verwendende Klasse an.This overload also specifies the default namespace for all the XML elements and the class to use as the XML root element.

XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte vom Typ Object in Instanzen eines XML-Dokuments serialisieren und Instanzen eines XML-Dokuments in Objekte vom Typ Object deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of type Object into XML document instances, and deserialize XML document instances into objects of type Object. Jedes zu serialisierende Objekt kann selbst Instanzen von Klassen enthalten, die von dieser Überladung durch andere Klassen überschrieben werden können.Each object to be serialized can itself contain instances of classes, which this overload overrides with other classes. Diese Überladung gibt außerdem den Standardnamespace für alle XML-Elemente sowie die als XML-Stammelement zu verwendende Klasse an.This overload also specifies the default namespace for all the XML elements and the class to use as the XML root element.

XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String, Evidence) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String, Evidence) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String, Evidence)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in Instanzen von XML-Dokumenten serialisieren und Instanzen von XML-Dokumenten in Objekte des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML document instances, and deserialize XML document instances into objects of the specified type. Diese Überladung ermöglicht das Bereitstellen anderer Typen, die bei der Serialisierung oder Deserialisierung gefunden werden könnten, sowie eines Standardnamespaces für alle XML-Elemente, der Klasse, die als XML-Stammelement verwendet werden soll, ihres Speicherorts und der für den Zugriff erforderlichen Anmeldeinformationen.This overload allows you to supply other types that can be encountered during a serialization or deserialization operation, as well as a default namespace for all XML elements, the class to use as the XML root element, its location, and credentials required for access.

XmlSerializer() XmlSerializer() XmlSerializer()

Initialisiert eine neue Instanz der XmlSerializer-Klasse.Initializes a new instance of the XmlSerializer class.

protected:
 XmlSerializer();
protected XmlSerializer ();
Protected Sub New ()

XmlSerializer(Type) XmlSerializer(Type) XmlSerializer(Type)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und XML-Dokumente in Objekte des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize XML documents into objects of the specified type.

public:
 XmlSerializer(Type ^ type);
public XmlSerializer (Type type);
new System.Xml.Serialization.XmlSerializer : Type -> System.Xml.Serialization.XmlSerializer

Parameter

type
Type Type Type Type

Der Objekttyp, den dieser XmlSerializer serialisieren kann.The type of the object that this XmlSerializer can serialize.

Beispiele

Das folgende Beispiel erstellt eine XmlSerializer , serialisiert ein Objekt mit dem Namen Widget.The following example constructs an XmlSerializer that serializes an object named Widget. Im Beispiel wird die verschiedenen Eigenschaften des Objekts vor dem Aufruf der Serialize Methode.The example sets various properties of the object before calling the Serialize method.

private:
   void SerializeObject( String^ filename )
   {
      XmlSerializer^ serializer =
         gcnew XmlSerializer( OrderedItem::typeid );

      // Create an instance of the class to be serialized.
      OrderedItem^ i = gcnew OrderedItem;

      // Set the public property values.
      i->ItemName = "Widget";
      i->Description = "Regular Widget";
      i->Quantity = 10;
      i->UnitPrice = (Decimal)2.30;

      // Writing the document requires a TextWriter.
      TextWriter^ writer = gcnew StreamWriter( filename );

      // Serialize the object, and close the TextWriter.
      serializer->Serialize( writer, i );
      writer->Close();
   }

public:
   // This is the class that will be serialized.
   ref class OrderedItem
   {
   public:
      String^ ItemName;
      String^ Description;
      Decimal UnitPrice;
      int Quantity;
   };
private void SerializeObject(string filename)
{
   XmlSerializer serializer = 
   new XmlSerializer(typeof(OrderedItem));

   // Create an instance of the class to be serialized.
   OrderedItem i = new OrderedItem();

   // Set the public property values.
   i.ItemName = "Widget";
   i.Description = "Regular Widget";
   i.Quantity = 10;
   i.UnitPrice = (decimal) 2.30;

   // Writing the document requires a TextWriter.
   TextWriter writer = new StreamWriter(filename);

   // Serialize the object, and close the TextWriter.
   serializer.Serialize(writer, i);
   writer.Close();
}

// This is the class that will be serialized.
public class OrderedItem
{
   public string ItemName;
   public string Description;
   public decimal UnitPrice;
   public int Quantity;
}

Private Sub SerializeObject(ByVal filename As String)
    Dim serializer As New XmlSerializer(GetType(OrderedItem))
    
    ' Create an instance of the class to be serialized.
    Dim i As New OrderedItem()
    
    ' Set the public property values.
    With i
        .ItemName = "Widget"
        .Description = "Regular Widget"
        .Quantity = 10
        .UnitPrice = CDec(2.3)
    End With
    
    ' Writing the document requires a TextWriter.
    Dim writer As New StreamWriter(filename)
    
    ' Serialize the object, and close the TextWriter.
    serializer.Serialize(writer, i)
    writer.Close()
End Sub


' This is the class that will be serialized.
Public Class OrderedItem
    Public ItemName As String
    Public Description As String
    Public UnitPrice As Decimal
    Public Quantity As Integer
End Class

Hinweise

Im Allgemeinen eine Anwendung definiert mehrere Klassen, die XmlSerializer konvertiert in ein einzelnes Dokument für die XML-Instanz.Commonly, an application defines several classes that the XmlSerializer converts into a single XML-instance document. Allerdings die XmlSerializer muss bekannt sein, nur eine – der Typ der Klasse, die das XML-Stammelement darstellt.However, the XmlSerializer must know only one type--the type of the class that represents the XML root element. Die XmlSerializer serialisiert automatisch auf alle untergeordneten Klasseninstanzen.The XmlSerializer automatically serializes all subordinate class instances. Auf ähnliche Weise wird nur der Typ des XML-Stammelements für die Deserialisierung erforderlich.Similarly, only the type of the XML root element is required for deserialization.

Siehe auch

XmlSerializer(XmlTypeMapping) XmlSerializer(XmlTypeMapping) XmlSerializer(XmlTypeMapping)

Initialisiert eine Instanz der XmlSerializer-Klasse mithilfe eines Objekts, das einen Typ einem anderen zuweist.Initializes an instance of the XmlSerializer class using an object that maps one type to another.

public:
 XmlSerializer(System::Xml::Serialization::XmlTypeMapping ^ xmlTypeMapping);
public XmlSerializer (System.Xml.Serialization.XmlTypeMapping xmlTypeMapping);
new System.Xml.Serialization.XmlSerializer : System.Xml.Serialization.XmlTypeMapping -> System.Xml.Serialization.XmlSerializer

Parameter

xmlTypeMapping
XmlTypeMapping XmlTypeMapping XmlTypeMapping XmlTypeMapping

XmlTypeMapping zum Zuordnen eines Typs zu einem anderen.An XmlTypeMapping that maps one type to another.

Beispiele

Im folgenden Beispiel wird die Klasse serialisiert Group.The following example serializes a class named Group. Die Serialisierung der GroupName, IgnoreThis Felder und die Mitglieder der der GroupType -Enumeration werden überschrieben.The serialization of the GroupName, IgnoreThis fields, and the members of the GroupType enumeration are overridden. In der CreateOverrideSerializer -Methode, eine SoapAttributeOverrides Objekt wird erstellt, und für jede überschriebenen Member oder eine Enumeration, einen SoapAttributes -Objekt erstellt, wobei die entsprechende Eigenschaft festgelegt und hinzugefügt der SoapAttributeOverrides Objekt.In the CreateOverrideSerializer method, a SoapAttributeOverrides object is created, and for each overridden member or enumeration, a SoapAttributes object is created with the appropriate property set and added to the SoapAttributeOverrides object. Ein XmlMapping Objekt wurde mit der SoapAttributeOverrides -Objekt, und dass XmlMapping Objekt dient zum Erstellen der XmlSerializer , überschreibt die Standardserialisierung.An XmlMapping object is created using the SoapAttributeOverrides object, and that XmlMapping object is used to create the XmlSerializer that overrides the default serialization.

#using <System.Xml.dll>
#using <System.dll>

using namespace System;
using namespace System::IO;
using namespace System::Text;
using namespace System::Xml;
using namespace System::Xml::Serialization;
using namespace System::Xml::Schema;
ref class Car;

// SoapInclude allows Vehicle to accept Car type.

[SoapInclude(Car::typeid)]
public ref class Vehicle abstract
{
public:
   String^ licenseNumber;
   DateTime makeDate;
};

public ref class Car: public Vehicle{};

public enum class GroupType
{
   // These enums can be overridden.
   [SoapEnum("Small")]
   A,
   [SoapEnum("Large")]
   B
};

public ref class Group
{
public:

   [SoapAttributeAttribute(Namespace="http://www.cpandl.com")]
   String^ GroupName;

   [SoapAttributeAttribute(DataType="base64Binary")]
   array<Byte>^GroupNumber;

   [SoapAttributeAttribute(DataType="date",AttributeName="CreationDate")]
   DateTime Today;

   [SoapElement(DataType="nonNegativeInteger",ElementName="PosInt")]
   String^ PostitiveInt;

   // This is ignored when serialized unless it's overridden.

   [SoapIgnore]
   bool IgnoreThis;
   GroupType Grouptype;
   Vehicle^ MyVehicle;

   // The SoapInclude allows the method to return a Car.

   [SoapInclude(Car::typeid)]
   Vehicle^ myCar( String^ licNumber )
   {
      Vehicle^ v;
      if ( licNumber->Equals( "" ) )
      {
         v = gcnew Car;
         v->licenseNumber = "!!!!!!";
      }
      else
      {
         v = gcnew Car;
         v->licenseNumber = licNumber;
      }

      return v;
   }
};

public ref class Run
{
public:
   static void main()
   {
      Run^ test = gcnew Run;
      test->SerializeOriginal( "SoapOriginal.xml" );
      test->SerializeOverride( "SoapOverrides.xml" );
      test->DeserializeOriginal( "SoapOriginal.xml" );
      test->DeserializeOverride( "SoapOverrides.xml" );
   }

   void SerializeOriginal( String^ filename )
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping^ myMapping = (gcnew SoapReflectionImporter)->ImportTypeMapping( Group::typeid );
      XmlSerializer^ mySerializer = gcnew XmlSerializer( myMapping );
      Group^ myGroup = MakeGroup();

      // Writing the file requires a TextWriter.
      XmlTextWriter^ writer = gcnew XmlTextWriter( filename,Encoding::UTF8 );
      writer->Formatting = Formatting::Indented;
      writer->WriteStartElement( "wrapper" );

      // Serialize the class, and close the TextWriter.
      mySerializer->Serialize( writer, myGroup );
      writer->WriteEndElement();
      writer->Close();
   }

   void SerializeOverride( String^ filename )
   {
      // Create an instance of the XmlSerializer class
      // that overrides the serialization.
      XmlSerializer^ overRideSerializer = CreateOverrideSerializer();
      Group^ myGroup = MakeGroup();

      // Writing the file requires a TextWriter.
      XmlTextWriter^ writer = gcnew XmlTextWriter( filename,Encoding::UTF8 );
      writer->Formatting = Formatting::Indented;
      writer->WriteStartElement( "wrapper" );

      // Serialize the class, and close the TextWriter.
      overRideSerializer->Serialize( writer, myGroup );
      writer->WriteEndElement();
      writer->Close();
   }

private:
   Group^ MakeGroup()
   {
      // Create an instance of the class that will be serialized.
      Group^ myGroup = gcnew Group;

      // Set the object properties.
      myGroup->GroupName = ".NET";
      array<Byte>^hexByte = {Convert::ToByte( 100 ),Convert::ToByte( 50 )};
      myGroup->GroupNumber = hexByte;
      DateTime myDate = DateTime(2002,5,2);
      myGroup->Today = myDate;
      myGroup->PostitiveInt = "10000";
      myGroup->IgnoreThis = true;
      myGroup->Grouptype = GroupType::B;
      Car^ thisCar = dynamic_cast<Car^>(myGroup->myCar( "1234566" ));
      myGroup->MyVehicle = thisCar;
      return myGroup;
   }

public:
   void DeserializeOriginal( String^ filename )
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping^ myMapping = (gcnew SoapReflectionImporter)->ImportTypeMapping( Group::typeid );
      XmlSerializer^ mySerializer = gcnew XmlSerializer( myMapping );

      // Reading the file requires an  XmlTextReader.
      XmlTextReader^ reader = gcnew XmlTextReader( filename );
      reader->ReadStartElement( "wrapper" );

      // Deserialize and cast the object.
      Group^ myGroup;
      myGroup = dynamic_cast<Group^>(mySerializer->Deserialize( reader ));
      reader->ReadEndElement();
      reader->Close();
   }

   void DeserializeOverride( String^ filename )
   {
      // Create an instance of the XmlSerializer class.
      XmlSerializer^ overRideSerializer = CreateOverrideSerializer();

      // Reading the file requires an XmlTextReader.
      XmlTextReader^ reader = gcnew XmlTextReader( filename );
      reader->ReadStartElement( "wrapper" );

      // Deserialize and cast the object.
      Group^ myGroup;
      myGroup = dynamic_cast<Group^>(overRideSerializer->Deserialize( reader ));
      reader->ReadEndElement();
      reader->Close();
      ReadGroup( myGroup );
   }

private:
   void ReadGroup( Group^ myGroup )
   {
      Console::WriteLine( myGroup->GroupName );
      Console::WriteLine( myGroup->GroupNumber[ 0 ] );
      Console::WriteLine( myGroup->GroupNumber[ 1 ] );
      Console::WriteLine( myGroup->Today );
      Console::WriteLine( myGroup->PostitiveInt );
      Console::WriteLine( myGroup->IgnoreThis );
      Console::WriteLine();
   }

   XmlSerializer^ CreateOverrideSerializer()
   {
      SoapAttributeOverrides^ mySoapAttributeOverrides = gcnew SoapAttributeOverrides;
      SoapAttributes^ soapAtts = gcnew SoapAttributes;
      SoapElementAttribute^ mySoapElement = gcnew SoapElementAttribute;
      mySoapElement->ElementName = "xxxx";
      soapAtts->SoapElement = mySoapElement;
      mySoapAttributeOverrides->Add( Group::typeid, "PostitiveInt", soapAtts );

      // Override the IgnoreThis property.
      SoapIgnoreAttribute^ myIgnore = gcnew SoapIgnoreAttribute;
      soapAtts = gcnew SoapAttributes;
      soapAtts->SoapIgnore = false;
      mySoapAttributeOverrides->Add( Group::typeid, "IgnoreThis", soapAtts );

      // Override the GroupType enumeration. 
      soapAtts = gcnew SoapAttributes;
      SoapEnumAttribute^ xSoapEnum = gcnew SoapEnumAttribute;
      xSoapEnum->Name = "Over1000";
      soapAtts->GroupType::SoapEnum = xSoapEnum;

      // Add the SoapAttributes to the 
      // mySoapAttributeOverridesrides object.
      mySoapAttributeOverrides->Add( GroupType::typeid, "A", soapAtts );

      // Create second enumeration and add it.
      soapAtts = gcnew SoapAttributes;
      xSoapEnum = gcnew SoapEnumAttribute;
      xSoapEnum->Name = "ZeroTo1000";
      soapAtts->GroupType::SoapEnum = xSoapEnum;
      mySoapAttributeOverrides->Add( GroupType::typeid, "B", soapAtts );

      // Override the Group type.
      soapAtts = gcnew SoapAttributes;
      SoapTypeAttribute^ soapType = gcnew SoapTypeAttribute;
      soapType->TypeName = "Team";
      soapAtts->SoapType = soapType;
      mySoapAttributeOverrides->Add( Group::typeid, soapAtts );

      // Create an XmlTypeMapping that is used to create an instance 
      // of the XmlSerializer. Then return the XmlSerializer object.
      XmlTypeMapping^ myMapping = (gcnew SoapReflectionImporter( mySoapAttributeOverrides ))->ImportTypeMapping( Group::typeid );
      XmlSerializer^ ser = gcnew XmlSerializer( myMapping );
      return ser;
   }
};

int main()
{
   Run::main();
}
using System;
using System.IO;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using System.Xml.Schema;

public class Group
{
   [SoapAttribute (Namespace = "http://www.cpandl.com")]
   public string GroupName;
   
   [SoapAttribute(DataType = "base64Binary")]
   public Byte [] GroupNumber;

   [SoapAttribute(DataType = "date", AttributeName = "CreationDate")]
   public DateTime Today;
   [SoapElement(DataType = "nonNegativeInteger", ElementName = "PosInt")]
   public string PostitiveInt;
   // This is ignored when serialized unless it's overridden.
   [SoapIgnore] 
   public bool IgnoreThis;
   
   public GroupType Grouptype;

   public Vehicle MyVehicle;

   // The SoapInclude allows the method to return a Car.
   [SoapInclude(typeof(Car))]
   public Vehicle myCar(string licNumber)
   {
      Vehicle v;
      if(licNumber == "")
         {
            v = new Car();
   	    v.licenseNumber = "!!!!!!";
   	 }
      else
   	 {
   	   v = new Car();
   	   v.licenseNumber = licNumber;
   	 }
      return v;
   }
}
  
// SoapInclude allows Vehicle to accept Car type.
[SoapInclude(typeof(Car))]
public abstract class Vehicle
{
   public string licenseNumber;
   public DateTime makeDate;
}

public class Car: Vehicle
{
}

public enum GroupType
{
   // These enums can be overridden.
   [SoapEnum("Small")]
   A,
   [SoapEnum("Large")]
   B
}
 
public class Run
{
   public static void Main()
   {
      Run test = new Run();
      test.SerializeOriginal("SoapOriginal.xml");
      test.SerializeOverride("SoapOverrides.xml");
      test.DeserializeOriginal("SoapOriginal.xml");
      test.DeserializeOverride("SoapOverrides.xml");
   
   }
   public void SerializeOriginal(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping myMapping = 
      (new SoapReflectionImporter().ImportTypeMapping(
      typeof(Group)));
      XmlSerializer mySerializer =  
      new XmlSerializer(myMapping);
      Group myGroup=MakeGroup();
      // Writing the file requires a TextWriter.
      XmlTextWriter writer = 
      new XmlTextWriter(filename, Encoding.UTF8);
      writer.Formatting = Formatting.Indented;
      writer.WriteStartElement("wrapper");
      // Serialize the class, and close the TextWriter.
      mySerializer.Serialize(writer, myGroup);
      writer.WriteEndElement();
      writer.Close();
   }

   public void SerializeOverride(string filename)
   {
      // Create an instance of the XmlSerializer class
      // that overrides the serialization.
      XmlSerializer overRideSerializer = CreateOverrideSerializer();
      Group myGroup=MakeGroup();
      // Writing the file requires a TextWriter.
      XmlTextWriter writer = 
      new XmlTextWriter(filename, Encoding.UTF8);
      writer.Formatting = Formatting.Indented;
      writer.WriteStartElement("wrapper");
      // Serialize the class, and close the TextWriter.
      overRideSerializer.Serialize(writer, myGroup);
      writer.WriteEndElement();
      writer.Close();

   }

   private Group MakeGroup(){
      // Create an instance of the class that will be serialized.
      Group myGroup = new Group();

      // Set the object properties.
      myGroup.GroupName = ".NET";

      Byte [] hexByte = new Byte[2]{Convert.ToByte(100),
      Convert.ToByte(50)};
      myGroup.GroupNumber = hexByte;

      DateTime myDate = new DateTime(2002,5,2);
      myGroup.Today = myDate;
      myGroup.PostitiveInt= "10000";
      myGroup.IgnoreThis=true;
      myGroup.Grouptype= GroupType.B;
      Car thisCar =(Car)  myGroup.myCar("1234566");
      myGroup.MyVehicle=thisCar;
      return myGroup;
   }   	

   public void DeserializeOriginal(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping myMapping = 
      (new SoapReflectionImporter().ImportTypeMapping(
      typeof(Group)));
      XmlSerializer mySerializer =  
      new XmlSerializer(myMapping);


      // Reading the file requires an  XmlTextReader.
      XmlTextReader reader= 
      new XmlTextReader(filename);
      reader.ReadStartElement("wrapper");

      // Deserialize and cast the object.
      Group myGroup; 
      myGroup = (Group) mySerializer.Deserialize(reader);
      reader.ReadEndElement();
      reader.Close();

   }

   public void DeserializeOverride(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlSerializer overRideSerializer = CreateOverrideSerializer();

      // Reading the file requires an  XmlTextReader.
      XmlTextReader reader= 
      new XmlTextReader(filename);
      reader.ReadStartElement("wrapper");

      // Deserialize and cast the object.
      Group myGroup; 
      myGroup = (Group) overRideSerializer.Deserialize(reader);
      reader.ReadEndElement();
      reader.Close();
      ReadGroup(myGroup);
   }

   private void ReadGroup(Group myGroup){
      Console.WriteLine(myGroup.GroupName);
      Console.WriteLine(myGroup.GroupNumber[0]);
      Console.WriteLine(myGroup.GroupNumber[1]);
      Console.WriteLine(myGroup.Today);
      Console.WriteLine(myGroup.PostitiveInt);
      Console.WriteLine(myGroup.IgnoreThis);
      Console.WriteLine();
   }
   private XmlSerializer CreateOverrideSerializer()
   {
      SoapAttributeOverrides mySoapAttributeOverrides = 
      new SoapAttributeOverrides();
      SoapAttributes soapAtts = new SoapAttributes();

      SoapElementAttribute mySoapElement = new SoapElementAttribute();
      mySoapElement.ElementName = "xxxx";
      soapAtts.SoapElement = mySoapElement;
      mySoapAttributeOverrides.Add(typeof(Group), "PostitiveInt", 
      soapAtts);

      // Override the IgnoreThis property.
      SoapIgnoreAttribute myIgnore = new SoapIgnoreAttribute();
      soapAtts = new SoapAttributes();
      soapAtts.SoapIgnore = false;      
      mySoapAttributeOverrides.Add(typeof(Group), "IgnoreThis", 
      soapAtts);

      // Override the GroupType enumeration.	
      soapAtts = new SoapAttributes();
      SoapEnumAttribute xSoapEnum = new SoapEnumAttribute();
      xSoapEnum.Name = "Over1000";
      soapAtts.SoapEnum = xSoapEnum;

      // Add the SoapAttributes to the 
      // mySoapAttributeOverridesrides object.
      mySoapAttributeOverrides.Add(typeof(GroupType), "A", 
      soapAtts);

      // Create second enumeration and add it.
      soapAtts = new SoapAttributes();
      xSoapEnum = new SoapEnumAttribute();
      xSoapEnum.Name = "ZeroTo1000";
      soapAtts.SoapEnum = xSoapEnum;
      mySoapAttributeOverrides.Add(typeof(GroupType), "B", 
      soapAtts);

      // Override the Group type.
      soapAtts = new SoapAttributes();
      SoapTypeAttribute soapType = new SoapTypeAttribute();
      soapType.TypeName = "Team";
      soapAtts.SoapType = soapType;
      mySoapAttributeOverrides.Add(typeof(Group),soapAtts);

      // Create an XmlTypeMapping that is used to create an instance 
      // of the XmlSerializer. Then return the XmlSerializer object.
      XmlTypeMapping myMapping = (new SoapReflectionImporter(
      mySoapAttributeOverrides)).ImportTypeMapping(typeof(Group));
	
      XmlSerializer ser = new XmlSerializer(myMapping);
      return ser;
   }
}
Imports System
Imports System.IO
Imports System.Text
Imports System.Xml
Imports System.Xml.Serialization
Imports System.Xml.Schema

Public Class Group
   <SoapAttribute (Namespace:= "http:'www.cpandl.com")> _
   Public GroupName As String 
   
   <SoapAttribute(DataType:= "base64Binary")> _
   Public GroupNumber() As Byte

   <SoapAttribute(DataType:= "date", _
   AttributeName:= "CreationDate")> _
   Public Today As DateTime 
   <SoapElement(DataType:= "nonNegativeInteger", _
   ElementName:= "PosInt")> _
   Public PostitiveInt As String 
   ' This is ignored when serialized unless it's overridden.
   <SoapIgnore> _ 
   Public IgnoreThis As Boolean 
   
   Public Grouptype As GroupType 

   Public MyVehicle As Vehicle 

   '  The SoapInclude allows the method to return a Car.
   <SoapInclude(GetType(Car))> _
   Public Function myCar(licNumber As String ) As Vehicle 
      Dim v As Vehicle 
      if licNumber = "" Then
         v = New Car()
         v.licenseNumber = "!!!!!!"
      else  
   	   v = New Car()
   	   v.licenseNumber = licNumber
      End If
      
      return v
   End Function
End Class
  
' SoapInclude allows Vehicle to accept Car type.
<SoapInclude(GetType(Car))> _
Public MustInherit  class Vehicle
   Public licenseNumber As String 
   Public makeDate As DateTime 
End Class

Public Class Car
   Inherits Vehicle

End Class

Public enum GroupType
   ' These enums can be overridden.
   <SoapEnum("Small")> _
   A
   <SoapEnum("Large")> _ 
   B
End Enum
 
Public Class Run

   Shared Sub Main()
      Dim test As Run = New Run()
      test.SerializeOriginal("SoapOriginal.xml")
      test.SerializeOverride("SoapOverrides.xml")
      test.DeserializeOriginal("SoapOriginal.xml")
      test.DeserializeOverride("SoapOverrides.xml")
   End SUb
   
   Public Sub SerializeOriginal(filename As String)

      ' Create an instance of the XmlSerializer class.
      Dim myMapping As XmlTypeMapping = _
      (New SoapReflectionImporter().ImportTypeMapping _
      (GetType(Group)))
      Dim mySerializer As XmlSerializer =  _
      New XmlSerializer(myMapping)
      
      Dim myGroup As Group =MakeGroup()
      ' Writing the file requires a TextWriter.
      Dim writer As XmlTextWriter  = _
      New XmlTextWriter(filename, Encoding.UTF8)
      writer.Formatting = Formatting.Indented
      writer.WriteStartElement("wrapper")
      ' Serialize the class, and close the TextWriter.
      mySerializer.Serialize(writer, myGroup)
      writer.WriteEndElement()
      writer.Close()
   End Sub

   Public Sub SerializeOverride(filename As String)
      ' Create an instance of the XmlSerializer class
      ' that overrides the serialization.
      Dim overRideSerializer As XmlSerializer = _
      CreateOverrideSerializer()
      Dim myGroup As Group =MakeGroup()
      ' Writing the file requires a TextWriter.
      Dim writer As XmlTextWriter  = _
      New XmlTextWriter(filename, Encoding.UTF8)
      writer.Formatting = Formatting.Indented
      writer.WriteStartElement("wrapper")
      ' Serialize the class, and close the TextWriter.
      overRideSerializer.Serialize(writer, myGroup)
      writer.WriteEndElement()
      writer.Close()
    End Sub

   private Function MakeGroup() As Group 
      ' Create an instance of the class that will be serialized.
      Dim myGroup As Group  = New Group()

      ' Set the object properties.
      myGroup.GroupName = ".NET"

      Dim hexByte()As Byte = new Byte(1){Convert.ToByte(100), _
      Convert.ToByte(50)}
      myGroup.GroupNumber = hexByte

      Dim myDate As DateTime  = new DateTime(2002,5,2)
      myGroup.Today = myDate

      myGroup.PostitiveInt = "10000"
	myGroup.IgnoreThis = true
	myGroup.Grouptype = GroupType.B
	Dim thisCar As Car 
	thisCar =CType(myGroup.myCar("1234566"), Car)
	myGroup.myVehicle=thisCar
      return myGroup
   End Function   	

   Public Sub DeserializeOriginal(filename As String)
      ' Create an instance of the XmlSerializer class.
      Dim myMapping As XmlTypeMapping = _
      (New SoapReflectionImporter().ImportTypeMapping _
      (GetType(Group)))
      Dim mySerializer As XmlSerializer =  _
      New XmlSerializer(myMapping)

      ' Reading the file requires an  XmlTextReader.
      Dim reader As XmlTextReader = _
      New XmlTextReader(filename)
      reader.ReadStartElement("wrapper")

      ' Deserialize and cast the object.
      Dim myGroup As Group  = _
      CType(mySerializer.Deserialize(reader), Group)
      reader.ReadEndElement()
      reader.Close()
   End Sub

   Public Sub DeserializeOverride(filename As String)
      ' Create an instance of the XmlSerializer class.
      Dim overRideSerializer As XmlSerializer  = _
      CreateOverrideSerializer()

      ' Reading the file requires an  XmlTextReader.
      Dim reader As XmlTextReader = _
      New XmlTextReader(filename)
      reader.ReadStartElement("wrapper")

      ' Deserialize and cast the object.
      Dim myGroup As Group = _
      CType(overRideSerializer.Deserialize(reader), Group)
      reader.ReadEndElement()
      reader.Close()
      ReadGroup(myGroup)
   End Sub

   private Sub ReadGroup(myGroup As Group)
      Console.WriteLine(myGroup.GroupName)
      Console.WriteLine(myGroup.GroupNumber(0))
      Console.WriteLine(myGroup.GroupNumber(1))
      Console.WriteLine(myGroup.Today)
      Console.WriteLine(myGroup.PostitiveInt)
      Console.WriteLine(myGroup.IgnoreThis)
      Console.WriteLine()
   End Sub
   
   Private Function CreateOverrideSerializer() As XmlSerializer
      Dim soapOver As SoapAttributeOverrides = New SoapAttributeOverrides()
      Dim soapAtts As SoapAttributes = New SoapAttributes()

      Dim mySoapElement As SoapElementAttribute = New SoapElementAttribute()
      mySoapElement.ElementName = "xxxx"
      soapAtts.SoapElement = mySoapElement
      soapOver.Add(GetType(Group), "PostitiveInt", soapAtts)

      ' Override the IgnoreThis property.
      Dim myIgnore As SoapIgnoreAttribute  = new SoapIgnoreAttribute()
      soapAtts = New SoapAttributes()
      soapAtts.SoapIgnore = false
      soapOver.Add(GetType(Group), "IgnoreThis", soapAtts)

      ' Override the GroupType enumeration.
      soapAtts = New SoapAttributes()
      Dim xSoapEnum As SoapEnumAttribute = new SoapEnumAttribute()
      xSoapEnum.Name = "Over1000"
      soapAtts.SoapEnum = xSoapEnum
      ' Add the SoapAttributes to the SoapOverrides object.
      soapOver.Add(GetType(GroupType), "A", soapAtts)

      ' Create second enumeration and add it.
      soapAtts = New SoapAttributes()
      xSoapEnum = New SoapEnumAttribute()
      xSoapEnum.Name = "ZeroTo1000"
      soapAtts.SoapEnum = xSoapEnum
      soapOver.Add(GetType(GroupType), "B", soapAtts)

      ' Override the Group type.
      soapAtts = New SoapAttributes()
      Dim soapType As SoapTypeAttribute = New SoapTypeAttribute()
      soapType.TypeName = "Team"
      soapAtts.SoapType = soapType
      soapOver.Add(GetType(Group),soapAtts)
	
      Dim myMapping As XmlTypeMapping = (New SoapReflectionImporter( _
      soapOver)).ImportTypeMapping(GetType(Group))
	
       Dim ser As XmlSerializer = new XmlSerializer(myMapping)
      return ser
   End Function
End Class

Hinweise

Dieser Konstruktor dient zum Erstellen einer XmlSerializer beim Serialisieren eines Objekts in einer SOAP-Nachricht.This constructor is used to create an XmlSerializer when you serialize an object into a SOAP message. Um die generierten SOAP-Nachrichten zu steuern, verwenden Sie die speziellen Attribute (beginnend mit dem Wort "Soap") finden Sie in der System.Xml.Serialization Namespace.To control the SOAP messages generated, use the special attributes (beginning with the word "Soap") found in the System.Xml.Serialization namespace.

Siehe auch

XmlSerializer(Type, String) XmlSerializer(Type, String) XmlSerializer(Type, String)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und XML-Dokumente in Objekte des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize XML documents into objects of the specified type. Gibt den Standardnamespace für alle XML-Elemente an.Specifies the default namespace for all the XML elements.

public:
 XmlSerializer(Type ^ type, System::String ^ defaultNamespace);
public XmlSerializer (Type type, string defaultNamespace);
new System.Xml.Serialization.XmlSerializer : Type * string -> System.Xml.Serialization.XmlSerializer

Parameter

type
Type Type Type Type

Der Objekttyp, den dieser XmlSerializer serialisieren kann.The type of the object that this XmlSerializer can serialize.

defaultNamespace
String String String String

Der für alle XML-Elemente zu verwendende Standardnamespace.The default namespace to use for all the XML elements.

Beispiele

Das folgende Beispiel erstellt eine XmlSerializer , serialisiert ein Objekt mit dem Namen Widget.The following example constructs an XmlSerializer that serializes an object named Widget. Im Beispiel wird die verschiedenen Eigenschaften des Objekts vor dem Aufruf der Serialize Methode.The example sets various properties of the object before calling the Serialize method.

private:
   void SerializeObject( String^ filename )
   {
      XmlSerializer^ serializer = gcnew XmlSerializer(
         OrderedItem::typeid,"http://www.cpandl.com" );

      // Create an instance of the class to be serialized.
      OrderedItem^ i = gcnew OrderedItem;

      // Insert code to set property values.

      // Writing the document requires a TextWriter.
      TextWriter^ writer = gcnew StreamWriter( filename );
      // Serialize the object, and close the TextWriter
      serializer->Serialize( writer, i );
      writer->Close();
   }

   void DeserializeObject( String^ filename )
   {
      XmlSerializer^ serializer = gcnew XmlSerializer(
         OrderedItem::typeid,"http://www.cpandl.com" );
      // A FileStream is needed to read the XML document.
      FileStream^ fs = gcnew FileStream( filename,FileMode::Open );

      // Declare an object variable of the type to be deserialized.
      OrderedItem^ i;

      // Deserialize the object.
      i = dynamic_cast<OrderedItem^>(serializer->Deserialize( fs ));

      // Insert code to use the properties and methods of the object.
   }
private void SerializeObject(string filename) {
    XmlSerializer serializer = new XmlSerializer
        (typeof(OrderedItem), "http://www.cpandl.com");
     
    // Create an instance of the class to be serialized.
    OrderedItem i = new OrderedItem();
     
    // Insert code to set property values.
     
    // Writing the document requires a TextWriter.
    TextWriter writer = new StreamWriter(filename);
    // Serialize the object, and close the TextWriter
    serializer.Serialize(writer, i);
    writer.Close();
}

private void DeserializeObject(string filename) {
    XmlSerializer serializer = new XmlSerializer
        (typeof(OrderedItem), "http://www.cpandl.com");
    // A FileStream is needed to read the XML document.
    FileStream fs = new FileStream(filename, FileMode.Open);
     
    // Declare an object variable of the type to be deserialized.
    OrderedItem i;
     
    // Deserialize the object.
    i = (OrderedItem) serializer.Deserialize(fs);
     
    // Insert code to use the properties and methods of the object.
}

Private Sub SerializeObject(ByVal filename As String)
    Dim serializer As New XmlSerializer(GetType(OrderedItem), _
                                          "http://www.cpandl.com")
    
    ' Create an instance of the class to be serialized.
    Dim i As New OrderedItem()
    
    ' Insert code to set property values.
    ' Writing the document requires a TextWriter.
    Dim writer As New StreamWriter(filename)
    ' Serialize the object, and close the TextWriter.
    serializer.Serialize(writer, i)
    writer.Close()
End Sub


Private Sub DeserializeObject(ByVal filename As String)
    Dim serializer As New XmlSerializer(GetType(OrderedItem), _
                                          "http://www.cpandl.com")
    ' A FileStream is needed to read the XML document.
    Dim fs As New FileStream(filename, FileMode.Open)
    
    ' Declare an object variable of the type to be deserialized.
    Dim i As OrderedItem
    
    ' Deserialize the object.
    i = CType(serializer.Deserialize(fs), OrderedItem)
    ' Insert code to use the properties and methods of the object.
End Sub
     
Siehe auch

XmlSerializer(Type, Type[]) XmlSerializer(Type, Type[]) XmlSerializer(Type, Type[])

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und XML-Dokumente in ein Objekt eines angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize XML documents into object of a specified type. Wenn eine Eigenschaft oder ein Feld ein Array zurückgibt, werden durch den extraTypes-Parameter die Objekte angegeben, die in das Array eingefügt werden können.If a property or field returns an array, the extraTypes parameter specifies objects that can be inserted into the array.

public:
 XmlSerializer(Type ^ type, cli::array <Type ^> ^ extraTypes);
public XmlSerializer (Type type, Type[] extraTypes);
new System.Xml.Serialization.XmlSerializer : Type * Type[] -> System.Xml.Serialization.XmlSerializer

Parameter

type
Type Type Type Type

Der Objekttyp, den dieser XmlSerializer serialisieren kann.The type of the object that this XmlSerializer can serialize.

extraTypes
Type[]

Ein Type-Array mit zusätzlich zu serialisierenden Objekttypen.A Type array of additional object types to serialize.

Beispiele

Im folgende Beispiel wird eine Instanz einer Klasse, die ein öffentliches Feld, das ein Array von Objekten zurückgibt, enthält serialisiert.The following example serializes an instance of a class that contains a public field that returns an array of objects. Die extraTypes Parameter, der die XmlSerializer Konstruktor gibt die Typen der Objekte, die serialisiert werden können, im Array.The extraTypes parameter of the XmlSerializer constructor specifies the types of the objects that can be serialized in the array.

#using <System.Xml.dll>
#using <System.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
using namespace System::Xml::Serialization;
ref class Address;
ref class Phone;

// This defines the object that will be serialized.
public ref class Teacher
{
public:
   String^ Name;
   Teacher(){}

   /* Note that the Info field returns an array of objects.
         Any object can be added to the array by adding the
         object type to the array passed to the extraTypes argument. */

   [XmlArray(ElementName="ExtraInfo",IsNullable=true)]
   array<Object^>^Info;
   Phone^ PhoneInfo;
};


// This defines one of the extra types to be included.
public ref class Address
{
public:
   String^ City;
   Address(){}

   Address( String^ city )
   {
      City = city;
   }
};

// Another extra type to include.
public ref class Phone
{
public:
   String^ PhoneNumber;
   Phone(){}

   Phone( String^ phoneNumber )
   {
      PhoneNumber = phoneNumber;
   }
};

// Another type, derived from Phone
public ref class InternationalPhone: public Phone
{
public:
   String^ CountryCode;
   InternationalPhone(){}

   InternationalPhone( String^ countryCode )
   {
      CountryCode = countryCode;
   }
};

public ref class Run
{
public:
   static void main()
   {
      Run^ test = gcnew Run;
      test->SerializeObject( "Teacher.xml" );
      test->DeserializeObject( "Teacher.xml" );
   }

private:
   void SerializeObject( String^ filename )
   {
      // Writing the file requires a TextWriter.
      TextWriter^ myStreamWriter = gcnew StreamWriter( filename );

      // Create a Type array.
      array<Type^>^extraTypes = gcnew array<Type^>(3);
      extraTypes[ 0 ] = Address::typeid;
      extraTypes[ 1 ] = Phone::typeid;
      extraTypes[ 2 ] = InternationalPhone::typeid;

      // Create the XmlSerializer instance.
      XmlSerializer^ mySerializer = gcnew XmlSerializer( Teacher::typeid,extraTypes );
      Teacher^ teacher = gcnew Teacher;
      teacher->Name = "Mike";

      // Add extra types to the Teacher object
      array<Object^>^info = gcnew array<Object^>(2);
      info[ 0 ] = gcnew Address( "Springville" );
      info[ 1 ] = gcnew Phone( "555-0100" );
      teacher->Info = info;
      teacher->PhoneInfo = gcnew InternationalPhone( "000" );
      mySerializer->Serialize( myStreamWriter, teacher );
      myStreamWriter->Close();
   }

   void DeserializeObject( String^ filename )
   {
      // Create a Type array.
      array<Type^>^extraTypes = gcnew array<Type^>(3);
      extraTypes[ 0 ] = Address::typeid;
      extraTypes[ 1 ] = Phone::typeid;
      extraTypes[ 2 ] = InternationalPhone::typeid;

      // Create the XmlSerializer instance.
      XmlSerializer^ mySerializer = gcnew XmlSerializer( Teacher::typeid,extraTypes );

      // Reading a file requires a FileStream.
      FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
      Teacher^ teacher = dynamic_cast<Teacher^>(mySerializer->Deserialize( fs ));

      // Read the extra information.
      Address^ a = dynamic_cast<Address^>(teacher->Info[ 0 ]);
      Phone^ p = dynamic_cast<Phone^>(teacher->Info[ 1 ]);
      InternationalPhone^ Ip = dynamic_cast<InternationalPhone^>(teacher->PhoneInfo);
      Console::WriteLine( teacher->Name );
      Console::WriteLine( a->City );
      Console::WriteLine( p->PhoneNumber );
      Console::WriteLine( Ip->CountryCode );
   }
};

int main()
{
   Run::main();
}
using System;
using System.IO;
using System.Xml;
using System.Xml.Serialization;

// This defines the object that will be serialized.
public class Teacher
{  
   public string Name;
   public Teacher(){}
   /* Note that the Info field returns an array of objects.
      Any object can be added to the array by adding the
      object type to the array passed to the extraTypes argument. */
   [XmlArray (ElementName = "ExtraInfo", IsNullable = true)]
   public object[] Info;
   public Phone PhoneInfo;
}
 
// This defines one of the extra types to be included.
public class Address
{  
   public string City;

   public Address(){}
   public Address(string city)
   {
      City = city;
   }

}

// Another extra type to include.
public class Phone
{
   public string PhoneNumber;
   public Phone(){}
   public Phone(string phoneNumber)
   {
      PhoneNumber = phoneNumber;
   }
}

// Another type, derived from Phone
public class InternationalPhone:Phone
{
   public string CountryCode;

   public InternationalPhone(){}

   public InternationalPhone(string countryCode)
   {
      CountryCode = countryCode;
   }
}
    
public class Run
{
   public static void Main()
   {
      Run test = new Run();
      test.SerializeObject("Teacher.xml");
      test.DeserializeObject("Teacher.xml");
   }
 
   private void SerializeObject(string filename)
   {
      // Writing the file requires a TextWriter.
      TextWriter myStreamWriter = new StreamWriter(filename);
 
      // Create a Type array.
      Type [] extraTypes= new Type[3];
      extraTypes[0] = typeof(Address);
      extraTypes[1] = typeof(Phone);
      extraTypes[2] = typeof(InternationalPhone);

      // Create the XmlSerializer instance.
      XmlSerializer mySerializer = new XmlSerializer
      (typeof(Teacher),extraTypes);
          
      Teacher teacher = new Teacher();
      teacher.Name = "Mike";
      // Add extra types to the Teacher object
      object [] info = new object[2];
      info[0] = new Address("Springville");
      info[1] = new Phone("555-0100");
         
      teacher.Info = info;

      teacher.PhoneInfo = new InternationalPhone("000"); 

      mySerializer.Serialize(myStreamWriter,teacher);
      myStreamWriter.Close();
   }
 
   private void DeserializeObject(string filename)
   {
      // Create a Type array.
      Type [] extraTypes= new Type[3];
      extraTypes[0] = typeof(Address);
      extraTypes[1] = typeof(Phone);
      extraTypes[2] = typeof(InternationalPhone);

      // Create the XmlSerializer instance.
      XmlSerializer mySerializer = new XmlSerializer
      (typeof(Teacher),extraTypes);
      
      // Reading a file requires a FileStream.
      FileStream fs = new FileStream(filename, FileMode.Open);
      Teacher teacher = (Teacher) mySerializer.Deserialize(fs);
         
      // Read the extra information.
      Address a = (Address)teacher.Info[0];
      Phone p = (Phone) teacher.Info[1];
      InternationalPhone Ip = 
      (InternationalPhone) teacher.PhoneInfo;

      Console.WriteLine(teacher.Name);
      Console.WriteLine(a.City);
      Console.WriteLine(p.PhoneNumber);
      Console.WriteLine(Ip.CountryCode);
   }
}
Imports System
Imports System.IO
Imports System.Xml
Imports System.Xml.Serialization



' This defines the object that will be serialized.
Public Class Teacher
    Public Name As String
    
    Public Sub New()
    End Sub 'New 
    ' Note that the Info field returns an array of objects.
    ' Any object can be added to the array by adding the
    ' object type to the array passed to the extraTypes argument. 
    <XmlArray(ElementName := "ExtraInfo", IsNullable := True)> _
    Public Info() As Object
    Public PhoneInfo As Phone
End Class 'Teacher


' This defines one of the extra types to be included.
Public Class Address
    Public City As String
    
    Public Sub New()
    End Sub 'New
    
    Public Sub New(city As String)
        me.City = city
    End Sub 'New
End Class 'Address
 

' Another extra type to include.
Public Class Phone
    Public PhoneNumber As String
    
    Public Sub New()
    End Sub 'New
    
    Public Sub New(phoneNumber As String)
        me.PhoneNumber = phoneNumber
    End Sub 'New
End Class 'Phone


' Another type, derived from Phone.
Public Class InternationalPhone
    Inherits Phone
    Public CountryCode As String
    
    
    Public Sub New()
    End Sub 'New
     
    Public Sub New(countryCode As String)
        me.CountryCode = countryCode
    End Sub 'New
End Class 'InternationalPhone


Public Class Run
    
    Public Shared Sub Main()
        Dim test As New Run()
        test.SerializeObject("Teacher.xml")
        test.DeserializeObject("Teacher.xml")
    End Sub 'Main
    
    
    Private Sub SerializeObject(filename As String)
        ' Writing the file requires a TextWriter.
        Dim myStreamWriter As New StreamWriter(filename)
        
        ' Create a Type array.
        Dim extraTypes(2) As Type
        extraTypes(0) = GetType(Address)
        extraTypes(1) = GetType(Phone)
        extraTypes(2) = GetType(InternationalPhone)
        
        ' Create the XmlSerializer instance.
        Dim mySerializer As New XmlSerializer(GetType(Teacher), extraTypes)
        
        Dim teacher As New Teacher()
        teacher.Name = "Mike"
        ' Add extra types to the Teacher object.
        Dim info(1) As Object
        info(0) = New Address("Springville")
        info(1) = New Phone("555-0100")
        
        teacher.Info = info
        
        teacher.PhoneInfo = New InternationalPhone("000")
        
        mySerializer.Serialize(myStreamWriter, teacher)
        myStreamWriter.Close()
    End Sub 'SerializeObject
    
    
    Private Sub DeserializeObject(filename As String)
        ' Create a Type array.
        Dim extraTypes(2) As Type
        extraTypes(0) = GetType(Address)
        extraTypes(1) = GetType(Phone)
        extraTypes(2) = GetType(InternationalPhone)
        
        ' Create the XmlSerializer instance.
        Dim mySerializer As New XmlSerializer(GetType(Teacher), extraTypes)
        
        ' Reading a file requires a FileStream.
        Dim fs As New FileStream(filename, FileMode.Open)
        Dim teacher As Teacher = CType(mySerializer.Deserialize(fs), Teacher)
        
        ' Read the extra information.
        Dim a As Address = CType(teacher.Info(0), Address)
        Dim p As Phone = CType(teacher.Info(1), Phone)
        Dim Ip As InternationalPhone = CType(teacher.PhoneInfo, InternationalPhone)
        
        Console.WriteLine(teacher.Name)
        Console.WriteLine(a.City)
        Console.WriteLine(p.PhoneNumber)
        Console.WriteLine(Ip.CountryCode)
    End Sub 'DeserializeObject
End Class 'Run

Hinweise

Wenn eine öffentliche Eigenschaft oder ein Feld, ein Objekt oder Array von Objekten zurückgibt, werden die Objekttypen in der Standardeinstellung automatisch serialisiert.By default, if a public property or field returns an object, or array of objects, the object types are automatically serialized. Wenn eine Klasse ein Feld oder eine Eigenschaft enthält, die dagegen ein Array vom Typ Object, jedes Objekt in dieses Array eingefügt werden kann.However, if a class contains a field or property that returns an array of type Object, any object can be inserted into that array. In diesem Fall die XmlSerializer muss angewiesen werden, zu erwarten, dass alle möglichen Objekttypen, die eingefügt werden, die Object Array.In that case, the XmlSerializer must be instructed to expect all the possible object types that are inserted into the Object array. Verwenden Sie hierzu die extraTypes Parameter, um die zusätzlichen Objekttypen, die zum Serialisieren oder Deserialisieren anzugeben.To do this, use the extraTypes parameter to specify the extra object types to serialize or deserialize.

Sie können auch die extraTypes Parameter, um Typen anzugeben, die von einer Basisklasse abgeleitet.You can also use the extraTypes parameter to specify types derived from a base class. Nehmen wir beispielsweise an eine Basisklasse, die mit dem Namen Phone vorhanden ist, und eine Klasse namens InternationalPhone daraus abgeleitet wird.For example, suppose a base class named Phone exists, and a class named InternationalPhone derives from it. Verwenden der extraTypes Parameter sowie den abgeleiteten Typ angeben.Use the extraTypes parameter to specify the derived type as well.

Siehe auch

XmlSerializer(Type, XmlAttributeOverrides) XmlSerializer(Type, XmlAttributeOverrides) XmlSerializer(Type, XmlAttributeOverrides)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und XML-Dokumente in Objekte des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize XML documents into objects of the specified type. Jedes zu serialisierende Objekt kann selbst Instanzen von Klassen enthalten, die von dieser Überladung durch andere Klassen überschrieben werden können.Each object to be serialized can itself contain instances of classes, which this overload can override with other classes.

public:
 XmlSerializer(Type ^ type, System::Xml::Serialization::XmlAttributeOverrides ^ overrides);
public XmlSerializer (Type type, System.Xml.Serialization.XmlAttributeOverrides overrides);
new System.Xml.Serialization.XmlSerializer : Type * System.Xml.Serialization.XmlAttributeOverrides -> System.Xml.Serialization.XmlSerializer

Parameter

type
Type Type Type Type

Der Typ des zu serialisierenden Objekts.The type of the object to serialize.

Beispiele

Im folgende Beispiel wird eine Instanz einer Klasse, die in eine DLL-Datei definiert ist, überschreibt die öffentlichen Member finden Sie in der DLL serialisiert.The following example serializes an instance of a class that is defined in a DLL and to do so, overrides the public members found in the DLL.

// Beginning of HighSchool.dll
#using <System.Xml.dll>
#using <System.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
using namespace System::Xml::Serialization;

namespace HighSchool
{
   public ref class Student
   {
   public:
      String^ Name;
      int ID;
   };

   public ref class MyClass
   {
   public:
      array<Student^>^Students;
   };
}

namespace College
{

using namespace HighSchool;
   public ref class Graduate: public HighSchool::Student
   {
   public:
      Graduate(){}

      // Add a new field named University.
      String^ University;
   };

   public ref class Run
   {
   public:
      static void main()
      {
         Run^ test = gcnew Run;
         test->WriteOverriddenAttributes( "College.xml" );
         test->ReadOverriddenAttributes( "College.xml" );
      }

   private:
      void WriteOverriddenAttributes( String^ filename )
      {
         // Writing the file requires a TextWriter.
         TextWriter^ myStreamWriter = gcnew StreamWriter( filename );

         // Create an XMLAttributeOverrides class.
         XmlAttributeOverrides^ attrOverrides = gcnew XmlAttributeOverrides;

         // Create the XmlAttributes class.
         XmlAttributes^ attrs = gcnew XmlAttributes;

         /* Override the Student class. "Alumni" is the name
               of the overriding element in the XML output. */
         XmlElementAttribute^ attr = gcnew XmlElementAttribute( "Alumni",Graduate::typeid );

         /* Add the XmlElementAttribute to the collection of
               elements in the XmlAttributes object. */
         attrs->XmlElements->Add( attr );

         /* Add the XmlAttributes to the XmlAttributeOverrides. 
               "Students" is the name being overridden. */
         attrOverrides->Add( HighSchool::MyClass::typeid, "Students", attrs );

         // Create the XmlSerializer. 
         XmlSerializer^ mySerializer = gcnew XmlSerializer( HighSchool::MyClass::typeid,attrOverrides );
         MyClass ^ myClass = gcnew MyClass;
         Graduate^ g1 = gcnew Graduate;
         g1->Name = "Jackie";
         g1->ID = 1;
         g1->University = "Alma Mater";
         Graduate^ g2 = gcnew Graduate;
         g2->Name = "Megan";
         g2->ID = 2;
         g2->University = "CM";
         array<Student^>^myArray = {g1,g2};
         myClass->Students = myArray;
         mySerializer->Serialize( myStreamWriter, myClass );
         myStreamWriter->Close();
      }

      void ReadOverriddenAttributes( String^ filename )
      {
         /* The majority of the code here is the same as that in the
               WriteOverriddenAttributes method. Because the XML being read
               doesn't conform to the schema defined by the DLL, the
               XMLAttributesOverrides must be used to create an 
               XmlSerializer instance to read the XML document.*/
         XmlAttributeOverrides^ attrOverrides = gcnew XmlAttributeOverrides;
         XmlAttributes^ attrs = gcnew XmlAttributes;
         XmlElementAttribute^ attr = gcnew XmlElementAttribute( "Alumni",Graduate::typeid );
         attrs->XmlElements->Add( attr );
         attrOverrides->Add( HighSchool::MyClass::typeid, "Students", attrs );
         XmlSerializer^ readSerializer = gcnew XmlSerializer( HighSchool::MyClass::typeid,attrOverrides );
         
         // To read the file, a FileStream object is required. 
         FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
         MyClass ^ myClass;
         myClass = dynamic_cast<MyClass^>(readSerializer->Deserialize( fs ));

         /* Here is the difference between reading and writing an 
               XML document: You must declare an object of the derived 
               type (Graduate) and cast the Student instance to it.*/
         Graduate^ g;
         System::Collections::IEnumerator^ myEnum = myClass->Students->GetEnumerator();
         while ( myEnum->MoveNext() )
         {
            Graduate^ grad = safe_cast<Graduate^>(myEnum->Current);
            g = dynamic_cast<Graduate^>(grad);
            Console::Write( "{0}\t", g->Name );
            Console::Write( "{0}\t", g->ID );
            Console::Write( "{0}\n", g->University );
         }
      }
   };
}

int main()
{
   College::Run::main();
}
// Beginning of HighSchool.dll
namespace HighSchool
{
   public class Student
   {
      public string Name;
      public int ID;
   }
    
   public class MyClass
   {
      public Student[] Students;
   }
}

namespace College
   {
   using System;
   using System.IO;
   using System.Xml;
   using System.Xml.Serialization; 
   using HighSchool;

    public class Graduate:HighSchool.Student
    {
       public Graduate(){}
       // Add a new field named University.
       public string University;
    }
 
    
   public class Run
   {
      public static void Main()
      {
         Run test = new Run();
         test.WriteOverriddenAttributes("College.xml");
         test.ReadOverriddenAttributes("College.xml");
      }
 
      private void WriteOverriddenAttributes(string filename)
      {
         // Writing the file requires a TextWriter.
         TextWriter myStreamWriter = new StreamWriter(filename);
         // Create an XMLAttributeOverrides class.
         XmlAttributeOverrides attrOverrides = 
         new XmlAttributeOverrides();
         // Create the XmlAttributes class.
         XmlAttributes attrs = new XmlAttributes();

         /* Override the Student class. "Alumni" is the name
         of the overriding element in the XML output. */
         XmlElementAttribute attr = 
         new XmlElementAttribute("Alumni", typeof(Graduate));

         /* Add the XmlElementAttribute to the collection of
         elements in the XmlAttributes object. */
         attrs.XmlElements.Add(attr);

         /* Add the XmlAttributes to the XmlAttributeOverrides. 
         "Students" is the name being overridden. */
         attrOverrides.Add(typeof(HighSchool.MyClass), 
         "Students", attrs);
          
         // Create the XmlSerializer. 
         XmlSerializer mySerializer = new XmlSerializer
         (typeof(HighSchool.MyClass), attrOverrides);
 
         MyClass myClass = new MyClass();

         Graduate g1 = new Graduate();
         g1.Name = "Jackie";
         g1.ID = 1;
         g1.University = "Alma Mater";

         Graduate g2 = new Graduate();
         g2.Name = "Megan";
         g2.ID = 2;
         g2.University = "CM";

         Student[] myArray = {g1,g2};
         myClass.Students = myArray;
 
         mySerializer.Serialize(myStreamWriter, myClass);
         myStreamWriter.Close();
      }

      private void ReadOverriddenAttributes(string filename)
      {
         /* The majority of the code here is the same as that in the
         WriteOverriddenAttributes method. Because the XML being read
         doesn't conform to the schema defined by the DLL, the
         XMLAttributesOverrides must be used to create an 
         XmlSerializer instance to read the XML document.*/
          
         XmlAttributeOverrides attrOverrides = new 
         XmlAttributeOverrides();
         XmlAttributes attrs = new XmlAttributes();
         XmlElementAttribute attr = 
         new XmlElementAttribute("Alumni", typeof(Graduate));
         attrs.XmlElements.Add(attr);
         attrOverrides.Add(typeof(HighSchool.MyClass), 
         "Students", attrs);

         XmlSerializer readSerializer = new XmlSerializer
         (typeof(HighSchool.MyClass), attrOverrides);

         // To read the file, a FileStream object is required. 
         FileStream fs = new FileStream(filename, FileMode.Open);
          
         MyClass myClass;

         myClass = (MyClass) readSerializer.Deserialize(fs);

         /* Here is the difference between reading and writing an 
         XML document: You must declare an object of the derived 
         type (Graduate) and cast the Student instance to it.*/
         Graduate g;

         foreach(Graduate grad in myClass.Students)
         {
            g = (Graduate) grad;
            Console.Write(g.Name + "\t");
            Console.Write(g.ID + "\t");
            Console.Write(g.University + "\n");
         }
      }
   }
}
' Beginning of HighSchool.dll
Imports System
Imports System.IO
Imports System.Xml
Imports System.Xml.Serialization
Imports Microsoft.VisualBasic
Imports HighSchool

Namespace HighSchool
    
    Public Class Student
        Public Name As String
        Public ID As Integer
    End Class 'Student
    
    
    Public Class MyClass1
        Public Students() As Student
    End Class 'MyClass1
End Namespace 'HighSchool

Namespace College
    Public Class Graduate
        Inherits HighSchool.Student
        
        Public Sub New()
        End Sub 'New ' Add a new field named University.
        Public University As String
    End Class 'Graduate
    
    
    
    Public Class Run
        
        Public Shared Sub Main()
            Dim test As New Run()
            test.WriteOverriddenAttributes("College.xml")
            test.ReadOverriddenAttributes("College.xml")
        End Sub 'Main
        
        
        Private Sub WriteOverriddenAttributes(filename As String)
            ' Writing the file requires a TextWriter.
            Dim myStreamWriter As New StreamWriter(filename)
            ' Create an XMLAttributeOverrides class.
            Dim attrOverrides As New XmlAttributeOverrides()
            ' Create the XmlAttributes class.
            Dim attrs As New XmlAttributes()
            
            ' Override the Student class. "Alumni" is the name
            ' of the overriding element in the XML output. 
            Dim attr As New XmlElementAttribute("Alumni", GetType(Graduate))
            
            ' Add the XmlElementAttribute to the collection of
            ' elements in the XmlAttributes object. 
            attrs.XmlElements.Add(attr)
            
            ' Add the XmlAttributes to the XmlAttributeOverrides. 
            ' "Students" is the name being overridden. 
            attrOverrides.Add(GetType(HighSchool.MyClass1), "Students", attrs)
            
            ' Create the XmlSerializer. 
            Dim mySerializer As New XmlSerializer(GetType(HighSchool.MyClass1), attrOverrides)
            
            Dim oMyClass As New MyClass1()
            
            Dim g1 As New Graduate()
            g1.Name = "Jackie"
            g1.ID = 1
            g1.University = "Alma Mater"
            
            Dim g2 As New Graduate()
            g2.Name = "Megan"
            g2.ID = 2
            g2.University = "CM"
            
            Dim myArray As Student() =  {g1, g2}
            oMyClass.Students = myArray
            
            mySerializer.Serialize(myStreamWriter, oMyClass)
            myStreamWriter.Close()
        End Sub 'WriteOverriddenAttributes
        
        
        Private Sub ReadOverriddenAttributes(filename As String)
            ' The majority of the code here is the same as that in the
            ' WriteOverriddenAttributes method. Because the XML being read
            ' doesn't conform to the schema defined by the DLL, the
            ' XMLAttributesOverrides must be used to create an
            ' XmlSerializer instance to read the XML document.
            
            Dim attrOverrides As New XmlAttributeOverrides()
            Dim attrs As New XmlAttributes()
            Dim attr As New XmlElementAttribute("Alumni", GetType(Graduate))
            attrs.XmlElements.Add(attr)
            attrOverrides.Add(GetType(HighSchool.MyClass1), "Students", attrs)
            
            Dim readSerializer As New XmlSerializer(GetType(HighSchool.MyClass1), attrOverrides)
            
            ' To read the file, a FileStream object is required. 
            Dim fs As New FileStream(filename, FileMode.Open)
            
            Dim oMyClass As MyClass1
            
            oMyClass = CType(readSerializer.Deserialize(fs), MyClass1)
            
            ' Here is the difference between reading and writing an
            ' XML document: You must declare an object of the derived
            ' type (Graduate) and cast the Student instance to it.
            Dim g As Graduate
            
            Dim grad As Graduate
            For Each grad In  oMyClass.Students
                g = CType(grad, Graduate)
                Console.Write((g.Name & ControlChars.Tab))
                Console.Write((g.ID.ToString & ControlChars.Tab))
                Console.Write((g.University & ControlChars.Cr))
            Next grad
        End Sub 'ReadOverriddenAttributes
    End Class 'Run
End Namespace 'College

Hinweise

Die overrides Parameter kann verwendet werden, um die steuern, wie Felder und Eigenschaften in XML codiert werden.The overrides parameter can be used to control how fields and properties are encoded in XML. Diese Einstellungen überschreiben alle Attribute, die bereits auf die Objekte vorhanden sind.These settings override any attributes that already exist on the objects. Dies kann nützlich sein, wenn der Quellcode kann nicht geändert werden, oder mehrere Codierungen für die gleichen Klassen erforderlich sind.This can be useful when the source code cannot be modified or multiple encodings are required for the same classes.

Siehe auch

XmlSerializer(Type, XmlRootAttribute) XmlSerializer(Type, XmlRootAttribute) XmlSerializer(Type, XmlRootAttribute)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in XML-Dokumente serialisieren und ein XML-Dokument in ein Objekt des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML documents, and deserialize an XML document into object of the specified type. Außerdem wird die als XML-Stammelement zu verwendende Klasse angegeben.It also specifies the class to use as the XML root element.

public:
 XmlSerializer(Type ^ type, System::Xml::Serialization::XmlRootAttribute ^ root);
public XmlSerializer (Type type, System.Xml.Serialization.XmlRootAttribute root);
new System.Xml.Serialization.XmlSerializer : Type * System.Xml.Serialization.XmlRootAttribute -> System.Xml.Serialization.XmlSerializer

Parameter

type
Type Type Type Type

Der Objekttyp, den dieser XmlSerializer serialisieren kann.The type of the object that this XmlSerializer can serialize.

root
XmlRootAttribute XmlRootAttribute XmlRootAttribute XmlRootAttribute

Ein XmlRootAttribute, das das XML-Stammelement darstellt.An XmlRootAttribute that represents the XML root element.

Beispiele

Das folgende Beispiel erstellt eine XmlSerializer , verwendet eine XmlRootAttribute , verschiedene Eigenschaften der XML-Stammelement, z. B. den Namespace und den Elementnamen Namen enthält.The following example constructs an XmlSerializer that uses an XmlRootAttribute that contains various properties of the XML root element, such as its namespace and element name.

private:
   void SerializeObject( String^ filename )
   {
      // Create an XmlRootAttribute, and set its properties.
      XmlRootAttribute^ xRoot = gcnew XmlRootAttribute;
      xRoot->ElementName = "CustomRoot";
      xRoot->Namespace = "http://www.cpandl.com";
      xRoot->IsNullable = true;

      // Construct the XmlSerializer with the XmlRootAttribute.
      XmlSerializer^ serializer = gcnew XmlSerializer(
         OrderedItem::typeid,xRoot );

      // Create an instance of the object to serialize.
      OrderedItem^ i = gcnew OrderedItem;
      // Insert code to set properties of the ordered item.

      // Writing the document requires a TextWriter.
      TextWriter^ writer = gcnew StreamWriter( filename );
      serializer->Serialize( writer, i );
      writer->Close();
   }

   void DeserializeObject( String^ filename )
   {
      // Create an XmlRootAttribute, and set its properties.
      XmlRootAttribute^ xRoot = gcnew XmlRootAttribute;
      xRoot->ElementName = "CustomRoot";
      xRoot->Namespace = "http://www.cpandl.com";
      xRoot->IsNullable = true;

      XmlSerializer^ serializer = gcnew XmlSerializer(
         OrderedItem::typeid,xRoot );

      // A FileStream is needed to read the XML document.
      FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
      // Deserialize the object.
      OrderedItem^ i = dynamic_cast<OrderedItem^>(serializer->Deserialize( fs ));
      // Insert code to use the object's properties and methods.
   }
private void SerializeObject(string filename) {
    // Create an XmlRootAttribute, and set its properties.
    XmlRootAttribute xRoot = new XmlRootAttribute();
    xRoot.ElementName = "CustomRoot";
    xRoot.Namespace = "http://www.cpandl.com";
    xRoot.IsNullable = true;
     
    // Construct the XmlSerializer with the XmlRootAttribute.
    XmlSerializer serializer = new XmlSerializer
        (typeof(OrderedItem),xRoot);
     
    // Create an instance of the object to serialize.
    OrderedItem i = new OrderedItem();
    // Insert code to set properties of the ordered item.
     
    // Writing the document requires a TextWriter.
    TextWriter writer = new StreamWriter(filename);
     
    serializer.Serialize(writer, i);
    writer.Close();
}

private void DeserializeObject(string filename) {
    // Create an XmlRootAttribute, and set its properties.
    XmlRootAttribute xRoot = new XmlRootAttribute();
    xRoot.ElementName = "CustomRoot";
    xRoot.Namespace = "http://www.cpandl.com";
    xRoot.IsNullable = true;
     
    XmlSerializer serializer = new XmlSerializer
        (typeof(OrderedItem),xRoot);
     
    // A FileStream is needed to read the XML document.
    FileStream fs = new FileStream(filename, FileMode.Open);
    // Deserialize the object.
    OrderedItem i = (OrderedItem) serializer.Deserialize(fs);
    // Insert code to use the object's properties and methods.
}

Private Sub SerializeObject(ByVal filename As String)
    ' Create an XmlRootAttribute, and set its properties.
    Dim xRoot As New XmlRootAttribute()
    xRoot.ElementName = "CustomRoot"
    xRoot.Namespace = "http://www.cpandl.com"
    xRoot.IsNullable = True
    
    ' Construct the XmlSerializer with the XmlRootAttribute.
    Dim serializer As New XmlSerializer(GetType(OrderedItem), xRoot)
    
    ' Create an instance of the object to serialize.
    Dim i As New OrderedItem()
    ' Insert code to set properties of the ordered item.
    ' Writing the document requires a TextWriter.
    Dim writer As New StreamWriter(filename)
    
    serializer.Serialize(writer, i)
    writer.Close()
End Sub
    
Private Sub DeserializeObject(ByVal filename As String)
    ' Create an XmlRootAttribute, and set its properties.
    Dim xRoot As New XmlRootAttribute()
    xRoot.ElementName = "CustomRoot"
    xRoot.Namespace = "http://www.cpandl.com"
    xRoot.IsNullable = True
    
    Dim serializer As New XmlSerializer(GetType(OrderedItem), xRoot)
    
    ' A FileStream is needed to read the XML document.
    Dim fs As New FileStream(filename, FileMode.Open)
    ' Deserialize the object.
    Dim i As OrderedItem = CType(serializer.Deserialize(fs), OrderedItem)
    ' Insert code to use the object's properties and methods.
End Sub
     

Hinweise

Das Stammelement eines XML-Dokuments schließt alle anderen Elemente.The root element of an XML document encloses all the other elements. Das Objekt angegeben wird standardmäßig von der type Parameter als Stammelement serialisiert wird.By default, the object specified by the type parameter is serialized as the root element. Eigenschaften, z. B. die XML-Elementname des Stammelements, stammen aus der type Objekt.Properties, such as the XML element name of the root element, are taken from the type object. Allerdings die root Parameter können Sie durch Angabe des Standardobjekts Ersetzen einer XmlRootAttribute; das Objekt können Sie einen anderen Namespace, Elementnamen usw. festlegen.However, the root parameter allows you to replace the default object's information by specifying an XmlRootAttribute; the object allows you to set a different namespace, element name, and so on.

Siehe auch

XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte vom Typ Object in Instanzen eines XML-Dokuments serialisieren und Instanzen eines XML-Dokuments in Objekte vom Typ Object deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of type Object into XML document instances, and deserialize XML document instances into objects of type Object. Jedes zu serialisierende Objekt kann selbst Instanzen von Klassen enthalten, die von dieser Überladung durch andere Klassen überschrieben werden können.Each object to be serialized can itself contain instances of classes, which this overload overrides with other classes. Diese Überladung gibt außerdem den Standardnamespace für alle XML-Elemente sowie die als XML-Stammelement zu verwendende Klasse an.This overload also specifies the default namespace for all the XML elements and the class to use as the XML root element.

public:
 XmlSerializer(Type ^ type, System::Xml::Serialization::XmlAttributeOverrides ^ overrides, cli::array <Type ^> ^ extraTypes, System::Xml::Serialization::XmlRootAttribute ^ root, System::String ^ defaultNamespace);
public XmlSerializer (Type type, System.Xml.Serialization.XmlAttributeOverrides overrides, Type[] extraTypes, System.Xml.Serialization.XmlRootAttribute root, string defaultNamespace);
new System.Xml.Serialization.XmlSerializer : Type * System.Xml.Serialization.XmlAttributeOverrides * Type[] * System.Xml.Serialization.XmlRootAttribute * string -> System.Xml.Serialization.XmlSerializer

Parameter

type
Type Type Type Type

Der Objekttyp, den dieser XmlSerializer serialisieren kann.The type of the object that this XmlSerializer can serialize.

overrides
XmlAttributeOverrides XmlAttributeOverrides XmlAttributeOverrides XmlAttributeOverrides

Ein XmlAttributeOverrides, das das Verhalten der im type-Parameter festgelegten Klasse erweitert oder überschreibt.An XmlAttributeOverrides that extends or overrides the behavior of the class specified in the type parameter.

extraTypes
Type[]

Ein Type-Array mit zusätzlich zu serialisierenden Objekttypen.A Type array of additional object types to serialize.

root
XmlRootAttribute XmlRootAttribute XmlRootAttribute XmlRootAttribute

Ein XmlRootAttribute, das die Eigenschaften des XML-Stammelements definiert.An XmlRootAttribute that defines the XML root element properties.

defaultNamespace
String String String String

Der Standardnamespace aller XML-Elemente im XML-Dokument.The default namespace of all XML elements in the XML document.

Beispiele

Im folgende Beispiel wird eine Instanz einer Klasse, die in eine DLL-Datei definiert ist, überschreibt die öffentlichen Member finden Sie in der Klasse serialisiert.The following example serializes an instance of a class that is defined in a DLL and to do so, overrides the public members found in the class. Im Beispiel wird außerdem ein Array von zusätzlichen Typen, die den Standardnamespace für alle XML-Elemente und die Klasse verwenden, die die XML-Root-Element-Informationen bereitstellt.The example also specifies an array of extra types, the default namespace for all XML elements, and the class to use that provides the XML root element information. Im Beispiel wird davon ausgegangen, dass der Code am Anfang in eine DLL, die mit dem Namen kompiliert wurde HighSchool.The example assumes that the code at the beginning has been compiled into a DLL named HighSchool.

// Beginning of the HighSchool.dll 
#using <System.Xml.dll>
#using <System.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
using namespace System::Xml::Serialization;

namespace HighSchool
{
   public ref class Student
   {
   public:
      String^ Name;
      int ID;
   };

   public ref class MyClass
   {
   public:
      array<Student^>^Students;
   };
}

namespace College
{

using namespace HighSchool;
   public ref class Graduate: public HighSchool::Student
   {
   public:
      Graduate(){}

      // Add a new field named University.
      String^ University;

      // Use extra types to use this field.
      array<Object^>^Info;
   };

   public ref class Address
   {
   public:
      String^ City;
   };

   public ref class Phone
   {
   public:
      String^ Number;
   };

   public ref class Run
   {
   public:
      static void main()
      {
         Run^ test = gcnew Run;
         test->WriteOverriddenAttributes( "College.xml" );
         test->ReadOverriddenAttributes( "College.xml" );
      }

   private:
      void WriteOverriddenAttributes( String^ filename )
      {
         // Writing the file requires a TextWriter.
         TextWriter^ myStreamWriter = gcnew StreamWriter( filename );

         // Create an XMLAttributeOverrides class.
         XmlAttributeOverrides^ attrOverrides = gcnew XmlAttributeOverrides;

         // Create the XmlAttributes class.
         XmlAttributes^ attrs = gcnew XmlAttributes;

         /* Override the Student class. "Alumni" is the name
               of the overriding element in the XML output. */
         XmlElementAttribute^ attr = gcnew XmlElementAttribute( "Alumni",Graduate::typeid );

         /* Add the XmlElementAttribute to the collection of
               elements in the XmlAttributes object. */
         attrs->XmlElements->Add( attr );

         /* Add the XmlAttributes to the XmlAttributeOverrides. 
               "Students" is the name being overridden. */
         attrOverrides->Add( HighSchool::MyClass::typeid, "Students", attrs );

         // Create array of extra types.
         array<Type^>^extraTypes = gcnew array<Type^>(2);
         extraTypes[ 0 ] = Address::typeid;
         extraTypes[ 1 ] = Phone::typeid;

         // Create an XmlRootAttribute.
         XmlRootAttribute^ root = gcnew XmlRootAttribute( "Graduates" );

         /* Create the XmlSerializer with the 
               XmlAttributeOverrides object. */
         XmlSerializer^ mySerializer = gcnew XmlSerializer( HighSchool::MyClass::typeid,attrOverrides,extraTypes,root,"http://www.microsoft.com" );
         MyClass ^ myClass = gcnew MyClass;
         Graduate^ g1 = gcnew Graduate;
         g1->Name = "Jacki";
         g1->ID = 1;
         g1->University = "Alma";
         Graduate^ g2 = gcnew Graduate;
         g2->Name = "Megan";
         g2->ID = 2;
         g2->University = "CM";
         array<Student^>^myArray = {g1,g2};
         myClass->Students = myArray;

         // Create extra information.
         Address^ a1 = gcnew Address;
         a1->City = "Ionia";
         Address^ a2 = gcnew Address;
         a2->City = "Stamford";
         Phone^ p1 = gcnew Phone;
         p1->Number = "555-0101";
         Phone^ p2 = gcnew Phone;
         p2->Number = "555-0100";
         array<Object^>^o1 = {a1,p1};
         array<Object^>^o2 = {a2,p2};
         g1->Info = o1;
         g2->Info = o2;
         mySerializer->Serialize( myStreamWriter, myClass );
         myStreamWriter->Close();
      }

      void ReadOverriddenAttributes( String^ filename )
      {
         /* The majority of the code here is the same as that in the
               WriteOverriddenAttributes method. Because the XML being read
               doesn't conform to the schema defined by the DLL, the
               XMLAttributesOverrides must be used to create an 
               XmlSerializer instance to read the XML document.*/
         XmlAttributeOverrides^ attrOverrides = gcnew XmlAttributeOverrides;
         XmlAttributes^ attrs = gcnew XmlAttributes;
         XmlElementAttribute^ attr = gcnew XmlElementAttribute( "Alumni",Graduate::typeid );
         attrs->XmlElements->Add( attr );
         attrOverrides->Add( HighSchool::MyClass::typeid, "Students", attrs );
         array<Type^>^extraTypes = gcnew array<Type^>(2);
         extraTypes[ 0 ] = Address::typeid;
         extraTypes[ 1 ] = Phone::typeid;
         XmlRootAttribute^ root = gcnew XmlRootAttribute( "Graduates" );
         XmlSerializer^ readSerializer = gcnew XmlSerializer( HighSchool::MyClass::typeid,attrOverrides,extraTypes,root,"http://www.microsoft.com" );

         // A FileStream object is required to read the file. 
         FileStream^ fs = gcnew FileStream( filename,FileMode::Open );
         MyClass ^ myClass;
         myClass = dynamic_cast<MyClass^>(readSerializer->Deserialize( fs ));
         
         /* Here is the difference between reading and writing an 
               XML document: You must declare an object of the derived 
               type (Graduate) and cast the Student instance to it.*/
         Graduate^ g;
         Address^ a;
         Phone^ p;
         System::Collections::IEnumerator^ myEnum = myClass->Students->GetEnumerator();
         while ( myEnum->MoveNext() )
         {
            Graduate^ grad = safe_cast<Graduate^>(myEnum->Current);
            g = dynamic_cast<Graduate^>(grad);
            Console::Write( "{0}\t", g->Name );
            Console::Write( "{0}\t", g->ID );
            Console::Write( "{0}\n", g->University );
            a = dynamic_cast<Address^>(g->Info[ 0 ]);
            Console::WriteLine( a->City );
            p = dynamic_cast<Phone^>(g->Info[ 1 ]);
            Console::WriteLine( p->Number );
         }
      }
   };
}

int main()
{
   College::Run::main();
}
// Beginning of the HighSchool.dll 

namespace HighSchool
{
   public class Student
   {
      public string Name;
      public int ID;
   }
    
   public class MyClass
   {
      public Student[] Students;
   }
}

namespace College
   {
   using System;
   using System.IO;
   using System.Xml;
   using System.Xml.Serialization; 
   using HighSchool;

    public class Graduate:HighSchool.Student
    {
       public Graduate(){}
       // Add a new field named University.
       public string University;
       // Use extra types to use this field.
       public object[]Info;
    }
 
    public class Address
    {
       public string City;
    }
 
    public class Phone
    {
       public string Number;
    }
    
   public class Run
   {
      public static void Main()
      {
         Run test = new Run();
         test.WriteOverriddenAttributes("College.xml");
         test.ReadOverriddenAttributes("College.xml");
      }
 
      private void WriteOverriddenAttributes(string filename)
      {
         // Writing the file requires a TextWriter.
         TextWriter myStreamWriter = new StreamWriter(filename);
         // Create an XMLAttributeOverrides class.
         XmlAttributeOverrides attrOverrides = 
         new XmlAttributeOverrides();
         // Create the XmlAttributes class.
         XmlAttributes attrs = new XmlAttributes();
         /* Override the Student class. "Alumni" is the name
         of the overriding element in the XML output. */

         XmlElementAttribute attr = 
         new XmlElementAttribute("Alumni", typeof(Graduate));
         /* Add the XmlElementAttribute to the collection of
         elements in the XmlAttributes object. */
         attrs.XmlElements.Add(attr);
         /* Add the XmlAttributes to the XmlAttributeOverrides. 
         "Students" is the name being overridden. */
         attrOverrides.Add(typeof(HighSchool.MyClass), 
         "Students", attrs);
 
         // Create array of extra types.
         Type [] extraTypes = new Type[2];
         extraTypes[0]=typeof(Address);
         extraTypes[1]=typeof(Phone);
 
         // Create an XmlRootAttribute.
         XmlRootAttribute root = new XmlRootAttribute("Graduates");
          
         /* Create the XmlSerializer with the 
         XmlAttributeOverrides object. */
         XmlSerializer mySerializer = new XmlSerializer
         (typeof(HighSchool.MyClass), attrOverrides, extraTypes,
         root, "http://www.microsoft.com");
 
         MyClass myClass= new MyClass();

         Graduate g1 = new Graduate();
         g1.Name = "Jacki";
         g1.ID = 1;
         g1.University = "Alma";

         Graduate g2 = new Graduate();
         g2.Name = "Megan";
         g2.ID = 2;
         g2.University = "CM";

         Student[] myArray = {g1,g2};

         myClass.Students = myArray;
 
         // Create extra information.
         Address a1 = new Address();
         a1.City = "Ionia";
         Address a2 = new Address();
         a2.City = "Stamford";
         Phone p1 = new Phone();
         p1.Number = "555-0101";
         Phone p2 = new Phone();
         p2.Number = "555-0100";
 
         Object[]o1 = new Object[2]{a1, p1};
         Object[]o2 = new Object[2]{a2,p2};
 
         g1.Info = o1;
         g2.Info = o2;
         mySerializer.Serialize(myStreamWriter,myClass);
         myStreamWriter.Close();
      }

      private void ReadOverriddenAttributes(string filename)
      {
         /* The majority of the code here is the same as that in the
         WriteOverriddenAttributes method. Because the XML being read
         doesn't conform to the schema defined by the DLL, the
         XMLAttributesOverrides must be used to create an 
         XmlSerializer instance to read the XML document.*/
          
         XmlAttributeOverrides attrOverrides = new 
         XmlAttributeOverrides();
         XmlAttributes attrs = new XmlAttributes();
         XmlElementAttribute attr = 
         new XmlElementAttribute("Alumni", typeof(Graduate));
         attrs.XmlElements.Add(attr);
         attrOverrides.Add(typeof(HighSchool.MyClass), 
         "Students", attrs);

         Type [] extraTypes = new Type[2];
         extraTypes[0] = typeof(Address);
         extraTypes[1] = typeof(Phone);
 
         XmlRootAttribute root = new XmlRootAttribute("Graduates");
          
         XmlSerializer readSerializer = new XmlSerializer
         (typeof(HighSchool.MyClass), attrOverrides, extraTypes,
         root, "http://www.microsoft.com");

         // A FileStream object is required to read the file. 
         FileStream fs = new FileStream(filename, FileMode.Open);
          
         MyClass myClass;
         myClass = (MyClass) readSerializer.Deserialize(fs);

         /* Here is the difference between reading and writing an 
         XML document: You must declare an object of the derived 
         type (Graduate) and cast the Student instance to it.*/
         Graduate g;
         Address a;
         Phone p;
         foreach(Graduate grad in myClass.Students)
         {
            g = (Graduate) grad;
            Console.Write(g.Name + "\t");
            Console.Write(g.ID + "\t");
            Console.Write(g.University + "\n");
            a = (Address) g.Info[0];
            Console.WriteLine(a.City);
            p = (Phone) g.Info[1];
            Console.WriteLine(p.Number);
         }
      }
   }
}
'Beginning of the HighSchool.dll 
Imports System
Imports System.IO
Imports System.Xml
Imports System.Xml.Serialization
Imports Microsoft.VisualBasic
' Imports HighSchool

Namespace HighSchool

    Public Class Student
        Public Name As String
        Public ID As Integer
    End Class 'Student


    Public Class ClassRoom
        Public Students() As Student
    End Class 'ClassRoom
End Namespace 'HighSchool

Namespace College
    Public Class Graduate
        Inherits HighSchool.Student

        Public Sub New()
        End Sub 'New
        ' Add a new field named University.
        Public University As String
        ' Use extra types to use this field.
        Public Info() As Object
    End Class 'Graduate


    Public Class Address
        Public City As String
    End Class 'Address


    Public Class Phone
        Public Number As String
    End Class 'Phone


    Public Class Run

        Public Shared Sub Main()
            Dim test As New Run()
            test.WriteOverriddenAttributes("College.xml")
            test.ReadOverriddenAttributes("College.xml")
        End Sub 'Main


        Private Sub WriteOverriddenAttributes(ByVal filename As String)
            ' Writing the file requires a TextWriter.
            Dim myStreamWriter As New StreamWriter(filename)
            ' Create an XMLAttributeOverrides class.
            Dim attrOverrides As New XmlAttributeOverrides()
            ' Create the XmlAttributes class.
            Dim attrs As New XmlAttributes()
            ' Override the Student class. "Alumni" is the name
            ' of the overriding element in the XML output. 

            Dim attr As New XmlElementAttribute("Alumni", GetType(Graduate))
            ' Add the XmlElementAttribute to the collection of
            ' elements in the XmlAttributes object. 
            attrs.XmlElements.Add(attr)
            ' Add the XmlAttributes to the XmlAttributeOverrides.
            ' "Students" is the name being overridden. 
            attrOverrides.Add(GetType(HighSchool.ClassRoom), "Students", attrs)

            ' Create array of extra types.
            Dim extraTypes(1) As Type
            extraTypes(0) = GetType(Address)
            extraTypes(1) = GetType(Phone)

            ' Create an XmlRootAttribute.
            Dim root As New XmlRootAttribute("Graduates")

            ' Create the XmlSerializer with the
            ' XmlAttributeOverrides object. 
            Dim mySerializer As New XmlSerializer(GetType(HighSchool.ClassRoom), _
                attrOverrides, extraTypes, root, "http://www.microsoft.com")

            Dim oMyClass As New HighSchool.ClassRoom()

            Dim g1 As New Graduate()
            g1.Name = "Jacki"
            g1.ID = 1
            g1.University = "Alma"

            Dim g2 As New Graduate()
            g2.Name = "Megan"
            g2.ID = 2
            g2.University = "CM"

            Dim myArray As HighSchool.Student() = {g1, g2}

            oMyClass.Students = myArray

            ' Create extra information.
            Dim a1 As New Address()
            a1.City = "Ionia"
            Dim a2 As New Address()
            a2.City = "Stamford"
            Dim p1 As New Phone()
            p1.Number = "555-0101"
            Dim p2 As New Phone()
            p2.Number = "555-0100"

            Dim o1() As Object = {a1, p1}
            Dim o2() As Object = {a2, p2}

            g1.Info = o1
            g2.Info = o2
            mySerializer.Serialize(myStreamWriter, oMyClass)
            myStreamWriter.Close()
        End Sub 'WriteOverriddenAttributes


        Private Sub ReadOverriddenAttributes(ByVal filename As String)
            ' The majority of the code here is the same as that in the
            ' WriteOverriddenAttributes method. Because the XML being read
            ' doesn't conform to the schema defined by the DLL, the
            ' XMLAttributesOverrides must be used to create an
            ' XmlSerializer instance to read the XML document.

            Dim attrOverrides As New XmlAttributeOverrides()
            Dim attrs As New XmlAttributes()
            Dim attr As New XmlElementAttribute("Alumni", GetType(Graduate))
            attrs.XmlElements.Add(attr)
            attrOverrides.Add(GetType(HighSchool.ClassRoom), "Students", attrs)

            Dim extraTypes(1) As Type
            extraTypes(0) = GetType(Address)
            extraTypes(1) = GetType(Phone)

            Dim root As New XmlRootAttribute("Graduates")

            Dim readSerializer As New XmlSerializer(GetType(HighSchool.ClassRoom), _
                attrOverrides, extraTypes, root, "http://www.microsoft.com")

            ' A FileStream object is required to read the file. 
            Dim fs As New FileStream(filename, FileMode.Open)

            Dim oMyClass As HighSchool.ClassRoom
            oMyClass = CType(readSerializer.Deserialize(fs), HighSchool.ClassRoom)

            ' Here is the difference between reading and writing an
            ' XML document: You must declare an object of the derived
            ' type (Graduate) and cast the Student instance to it.
            Dim g As Graduate
            Dim a As Address
            Dim p As Phone
            Dim grad As Graduate
            For Each grad In oMyClass.Students
                g = CType(grad, Graduate)
                Console.Write((g.Name & ControlChars.Tab))
                Console.Write((g.ID & ControlChars.Tab))
                Console.Write((g.University & ControlChars.Cr))
                a = CType(g.Info(0), Address)
                Console.WriteLine(a.City)
                p = CType(g.Info(1), Phone)
                Console.WriteLine(p.Number)
            Next grad
        End Sub 'ReadOverriddenAttributes
    End Class 'Run
End Namespace 'College

Hinweise

Die overrides Parameter ermöglicht die Erstellung von einer [XmlSerializer-Konstruktors (, XmlAttributeOverrides, des Typs<XRef: System.Xml.Serialization.XmlSerializer >, serialisiert es sich um eine Klasse, die das Verhalten der erweitert oder überschreibt eine Basis-Klasse.The overrides parameter allows for the creation of an [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Xml.Serialization.XmlSerializer> that serializes a class that extends or overrides the behavior of a base class. Beispielsweise ist angegebenen DLL es möglich, eine Klasse zu erstellen, die erbt oder eine Klasse, die in der DLL enthaltene erweitert.For example, given a DLL, it is possible to create a class that inherits or extends a class contained in the DLL. Um eine solche Klasse zu serialisieren, verwenden Sie eine Instanz von der [XmlSerializer-Konstruktors (, XmlAttributeOverrides, des Typs<xref:System.Xml.Serialization.XmlAttributeOverrides >-Klasse beim Erstellen der [(XmlSerializer-Konstruktors Typ, XmlAttributeOverrides, Typ<XRef: System.Xml.Serialization.XmlSerializer >.To serialize such a class, you must use an instance of the [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Xml.Serialization.XmlAttributeOverrides> class when constructing the [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Xml.Serialization.XmlSerializer>. Weitere Informationen finden Sie unter [XmlSerializer-Konstruktors (, XmlAttributeOverrides, des Typs<xref:System.Xml.Serialization.XmlAttributeOverrides >.For more details, see [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Xml.Serialization.XmlAttributeOverrides>.

Wenn eine öffentliche Eigenschaft oder ein Feld, ein Objekt oder Array von Objekten zurückgibt, werden die Objekttypen in der Standardeinstellung automatisch serialisiert.By default, if a public property or field returns an object, or array of objects, the object types are automatically serialized. Wenn eine Klasse ein Feld oder eine Eigenschaft enthält, die dagegen ein Array vom Typ [XmlSerializer-Konstruktors (, XmlAttributeOverrides, des Typs<XRef: System.Object >, jedes Objekt in dieses Array eingefügt werden kann.However, if a class contains a field or property that returns an array of type [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Object>, any object can be inserted into that array. In diesem Fall die [XmlSerializer-Konstruktors (, XmlAttributeOverrides, des Typs<XRef: System.Xml.Serialization.XmlSerializer > muss angewiesen werden, zu erwarten, dass alle möglichen Objekttypen, die in [XmlSerializer-Element eingefügt werden Konstruktor (, XmlAttributeOverrides, des Typs<XRef: System.Object > Array.In that case, the [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Xml.Serialization.XmlSerializer> must be instructed to expect all the possible object types that are inserted into the [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Object> array. Verwenden Sie hierzu die extraTypes Parameter, um die zusätzlichen Objekttypen, die zum Serialisieren oder Deserialisieren anzugeben.To do this, use the extraTypes parameter to specify the extra object types to serialize or deserialize.

Das Stammelement eines XML-Dokuments schließt alle anderen Elemente.The root element of an XML document encloses all the other elements. Das Objekt angegeben wird standardmäßig von der type Parameter als Stammelement serialisiert wird.By default, the object specified by the type parameter is serialized as the root element. Eigenschaften, z. B. die XML-Elementname des Stammelements stammen aus der type Objekt.Properties, such as the XML element name of the root element are taken from the type object. Allerdings die root Parameter können Sie durch Angabe des Standardobjekts Ersetzen einer [XmlSerializer-Konstruktors (, XmlAttributeOverrides, des Typs<xref:System.Xml.Serialization.XmlRootAttribute >; die Objekt können Sie einen anderen Namespace, Elementnamen usw. festlegen.However, the root parameter allows you to replace the default object's information by specifying an [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Xml.Serialization.XmlRootAttribute>; the object allows you to set a different namespace, element name, and so on.

Verwenden der defaultName Parameter, um den Standardnamespace aller XML-Elemente generiert werden, indem Sie die [XmlSerializer-Konstruktors (, XmlAttributeOverrides, des Typs<XRef: System.Xml.Serialization.XmlSerializer >.Use the defaultName parameter to specify the default namespace of all XML elements generated by the [XmlSerializer Constructor (Type, XmlAttributeOverrides, Type<xref:System.Xml.Serialization.XmlSerializer>.

Siehe auch

XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String)

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte vom Typ Object in Instanzen eines XML-Dokuments serialisieren und Instanzen eines XML-Dokuments in Objekte vom Typ Object deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of type Object into XML document instances, and deserialize XML document instances into objects of type Object. Jedes zu serialisierende Objekt kann selbst Instanzen von Klassen enthalten, die von dieser Überladung durch andere Klassen überschrieben werden können.Each object to be serialized can itself contain instances of classes, which this overload overrides with other classes. Diese Überladung gibt außerdem den Standardnamespace für alle XML-Elemente sowie die als XML-Stammelement zu verwendende Klasse an.This overload also specifies the default namespace for all the XML elements and the class to use as the XML root element.

public:
 XmlSerializer(Type ^ type, System::Xml::Serialization::XmlAttributeOverrides ^ overrides, cli::array <Type ^> ^ extraTypes, System::Xml::Serialization::XmlRootAttribute ^ root, System::String ^ defaultNamespace, System::String ^ location);
public XmlSerializer (Type type, System.Xml.Serialization.XmlAttributeOverrides overrides, Type[] extraTypes, System.Xml.Serialization.XmlRootAttribute root, string defaultNamespace, string location);
new System.Xml.Serialization.XmlSerializer : Type * System.Xml.Serialization.XmlAttributeOverrides * Type[] * System.Xml.Serialization.XmlRootAttribute * string * string -> System.Xml.Serialization.XmlSerializer

Parameter

type
Type Type Type Type

Der Objekttyp, den dieser XmlSerializer serialisieren kann.The type of the object that this XmlSerializer can serialize.

overrides
XmlAttributeOverrides XmlAttributeOverrides XmlAttributeOverrides XmlAttributeOverrides

Ein XmlAttributeOverrides, das das Verhalten der im type-Parameter festgelegten Klasse erweitert oder überschreibt.An XmlAttributeOverrides that extends or overrides the behavior of the class specified in the type parameter.

extraTypes
Type[]

Ein Type-Array mit zusätzlich zu serialisierenden Objekttypen.A Type array of additional object types to serialize.

root
XmlRootAttribute XmlRootAttribute XmlRootAttribute XmlRootAttribute

Ein XmlRootAttribute, das die Eigenschaften des XML-Stammelements definiert.An XmlRootAttribute that defines the XML root element properties.

defaultNamespace
String String String String

Der Standardnamespace aller XML-Elemente im XML-Dokument.The default namespace of all XML elements in the XML document.

location
String String String String

Der Speicherort der Typen.The location of the types.

XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String, Evidence) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String, Evidence) XmlSerializer(Type, XmlAttributeOverrides, Type[], XmlRootAttribute, String, String, Evidence)

Warnung

Diese API ist jetzt veraltet.

Initialisiert eine neue Instanz der XmlSerializer-Klasse, die Objekte des angegebenen Typs in Instanzen von XML-Dokumenten serialisieren und Instanzen von XML-Dokumenten in Objekte des angegebenen Typs deserialisieren kann.Initializes a new instance of the XmlSerializer class that can serialize objects of the specified type into XML document instances, and deserialize XML document instances into objects of the specified type. Diese Überladung ermöglicht das Bereitstellen anderer Typen, die bei der Serialisierung oder Deserialisierung gefunden werden könnten, sowie eines Standardnamespaces für alle XML-Elemente, der Klasse, die als XML-Stammelement verwendet werden soll, ihres Speicherorts und der für den Zugriff erforderlichen Anmeldeinformationen.This overload allows you to supply other types that can be encountered during a serialization or deserialization operation, as well as a default namespace for all XML elements, the class to use as the XML root element, its location, and credentials required for access.

public:
 XmlSerializer(Type ^ type, System::Xml::Serialization::XmlAttributeOverrides ^ overrides, cli::array <Type ^> ^ extraTypes, System::Xml::Serialization::XmlRootAttribute ^ root, System::String ^ defaultNamespace, System::String ^ location, System::Security::Policy::Evidence ^ evidence);
[System.Obsolete("This method is obsolete and will be removed in a future release of the .NET Framework. Please use a XmlSerializer constructor overload which does not take an Evidence parameter. See http://go2.microsoft.com/fwlink/?LinkId=131738 for more information.")]
public XmlSerializer (Type type, System.Xml.Serialization.XmlAttributeOverrides overrides, Type[] extraTypes, System.Xml.Serialization.XmlRootAttribute root, string defaultNamespace, string location, System.Security.Policy.Evidence evidence);
new System.Xml.Serialization.XmlSerializer : Type * System.Xml.Serialization.XmlAttributeOverrides * Type[] * System.Xml.Serialization.XmlRootAttribute * string * string * System.Security.Policy.Evidence -> System.Xml.Serialization.XmlSerializer

Parameter

type
Type Type Type Type

Der Objekttyp, den dieser XmlSerializer serialisieren kann.The type of the object that this XmlSerializer can serialize.

overrides
XmlAttributeOverrides XmlAttributeOverrides XmlAttributeOverrides XmlAttributeOverrides

Ein XmlAttributeOverrides, das das Verhalten der im type-Parameter festgelegten Klasse erweitert oder überschreibt.An XmlAttributeOverrides that extends or overrides the behavior of the class specified in the type parameter.

extraTypes
Type[]

Ein Type-Array mit zusätzlich zu serialisierenden Objekttypen.A Type array of additional object types to serialize.

root
XmlRootAttribute XmlRootAttribute XmlRootAttribute XmlRootAttribute

Ein XmlRootAttribute, das die Eigenschaften des XML-Stammelements definiert.An XmlRootAttribute that defines the XML root element properties.

defaultNamespace
String String String String

Der Standardnamespace aller XML-Elemente im XML-Dokument.The default namespace of all XML elements in the XML document.

location
String String String String

Der Speicherort der Typen.The location of the types.

evidence
Evidence Evidence Evidence Evidence

Eine Instanz der Evidence-Klasse, die Anmeldeinformationen für den Zugriff auf Typen enthält.An instance of the Evidence class that contains credentials required to access types.

Hinweise

Ermöglicht eine genauere Steuerung des Zugriffs in ein temporäres Verzeichnis, und verhindert, dass Code Injection und dem ausnutzen.Allows more precise control over access to a temporary directory and prevents code injection and exploitation. Klicken Sie zum Verwenden dieser Methode geben Sie einen Speicherort, und gewähren Sie Zugriff nur für bestimmte Benutzer.To use this method, specify a location and give access only to specific users. Administratoren können Richtlinien mit Beweislisten einrichten, die Beweise für das Berechtigungen entsprechen.Administrators can set up policies with evidence lists that match evidence to permissions.

Gilt für: