XmlSerializer.UnreferencedObject XmlSerializer.UnreferencedObject XmlSerializer.UnreferencedObject XmlSerializer.UnreferencedObject Event

定義

SOAP エンコード済み XML ストリームの逆シリアル化時に、XmlSerializer が、未使用の型または参照されていない型を認識した場合に発生します。Occurs during deserialization of a SOAP-encoded XML stream, when the XmlSerializer encounters a recognized type that is not used or is unreferenced.

public:
 event System::Xml::Serialization::UnreferencedObjectEventHandler ^ UnreferencedObject;
public event System.Xml.Serialization.UnreferencedObjectEventHandler UnreferencedObject;
member this.UnreferencedObject : System.Xml.Serialization.UnreferencedObjectEventHandler 
Public Custom Event UnreferencedObject As UnreferencedObjectEventHandler 

次の例では、追加、UnreferencedObjectEventHandlerXmlSerializerします。The following example adds an UnreferencedObjectEventHandler to an XmlSerializer. イベントを処理して、Serializer``_``UnreferencedObjectメソッド。The event is handled by the Serializer``_``UnreferencedObject method. 例を実行するには、切り取り、"UnrefObj.xml"という名前のファイルに次の XML を貼り付けます。To run the example, cut and paste the following XML into a file named "UnrefObj.xml".

<wrapper>  
  <Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" id="id1" n1:GroupName=".NET" xmlns:n1="http://www.cpandl.com">  
   </Group>  
<Vehicle id="id2" n1:type="Vehicle" xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">  
    <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema" n1:type="q1:string">ABCD</licenseNumber>  
  </Vehicle>  
<Vehicle id="id3" n1:type="Vehicle" xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">  
    <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema" n1:type="q1:string">1234</licenseNumber>  
  </Vehicle>  
</wrapper>  
#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 Vehicle;

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


// You must use the SoapIncludeAttribute to inform the XmlSerializer
// that the Vehicle type should be recognized when deserializing.

[SoapInclude(Vehicle::typeid)]
public ref class Group
{
public:
   String^ GroupName;
   Vehicle^ GroupVehicle;
};

public ref class Run
{
public:
   void DeserializeObject( String^ filename )
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping^ myMapping = ((gcnew SoapReflectionImporter)->ImportTypeMapping( Group::typeid ));
      XmlSerializer^ mySerializer = gcnew XmlSerializer( myMapping );
      mySerializer->UnreferencedObject += gcnew UnreferencedObjectEventHandler( this, &Run::Serializer_UnreferencedObject );
      
      // Reading the file requires an  XmlTextReader.
      XmlTextReader^ reader = gcnew XmlTextReader( filename );
      reader->ReadStartElement();
      
      // Deserialize and cast the object.
      Group^ myGroup;
      myGroup = dynamic_cast<Group^>(mySerializer->Deserialize( reader ));
      reader->ReadEndElement();
      reader->Close();
   }

private:
   void Serializer_UnreferencedObject( Object^ /*sender*/, UnreferencedObjectEventArgs^ e )
   {
      Console::WriteLine( "UnreferencedObject:" );
      Console::WriteLine( "ID: {0}", e->UnreferencedId );
      Console::WriteLine( "UnreferencedObject: {0}", e->UnreferencedObject );
      Vehicle^ myVehicle = dynamic_cast<Vehicle^>(e->UnreferencedObject);
      Console::WriteLine( "License: {0}", myVehicle->licenseNumber );
   }
};

int main()
{
   Run^ test = gcnew Run;
   test->DeserializeObject( "UnrefObj.xml" );
}

// The file named S"UnrefObj.xml" should contain this XML:
//  <Group xmlns:xsi=S"http://www.w3.org/2001/XMLSchema-instance" 
//xmlns:xsd=S"http://www.w3.org/2001/XMLSchema" id=S"id1" 
//n1:GroupName=S".NET" xmlns:n1=S"http://www.cpandl.com">
//<Vehicle id=S"id2" n1:type=S"Vehicle" 
//xmlns:n1=S"http://www.w3.org/2001/XMLSchema-instance">
//   <licenseNumber xmlns:q1=S"http://www.w3.org/2001/XMLSchema" 
//n1:type=S"q1:String*">ABCD</licenseNumber>
//<Vehicle id=S"id3" n1:type=S"Vehicle" 
//xmlns:n1=S"http://www.w3.org/2001/XMLSchema-instance">
//    <licenseNumber xmlns:q1=S"http://www.w3.org/2001/XMLSchema" 
//n1:type=S"q1:String*">1234</licenseNumber>
using System;
using System.IO;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using System.Xml.Schema;

// You must use the SoapIncludeAttribute to inform the XmlSerializer
// that the Vehicle type should be recognized when deserializing.
[SoapInclude(typeof(Vehicle))]
public class Group
{
   public string GroupName;
   public Vehicle GroupVehicle;
}
 [SoapInclude(typeof(Vehicle))]
public class Vehicle
{
   public string licenseNumber;
}

public class Run
{
   public static void Main()
   {
      Run test = new Run();
      test.DeserializeObject("UnrefObj.xml");
   }
   
   public void DeserializeObject(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlTypeMapping myMapping = 
      (new SoapReflectionImporter().ImportTypeMapping(
      typeof(Group)));
      XmlSerializer mySerializer =  
      new XmlSerializer(myMapping);
 
      mySerializer.UnreferencedObject += 
      new UnreferencedObjectEventHandler
      (Serializer_UnreferencedObject);

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

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

   private void Serializer_UnreferencedObject
   (object sender, UnreferencedObjectEventArgs e){
      Console.WriteLine("UnreferencedObject:");
      Console.WriteLine("ID: " + e.UnreferencedId);
      Console.WriteLine("UnreferencedObject: " + e.UnreferencedObject);
      Vehicle myVehicle = (Vehicle) e.UnreferencedObject;
      Console.WriteLine("License: " + myVehicle.licenseNumber);
   }
}

// The file named "UnrefObj.xml" should contain this XML:


//  <Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
//xmlns:xsd="http://www.w3.org/2001/XMLSchema" id="id1" 
//n1:GroupName=".NET" xmlns:n1="http://www.cpandl.com">

//<Vehicle id="id2" n1:type="Vehicle" 
//xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">
//   <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema" 
//n1:type="q1:string">ABCD</licenseNumber>

//<Vehicle id="id3" n1:type="Vehicle" 
//xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">
//    <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema" 
//n1:type="q1:string">1234</licenseNumber>


Imports System
Imports System.IO
Imports System.Text
Imports System.Xml
Imports System.Xml.Serialization
Imports System.Xml.Schema

' You must use the SoapIncludeAttribute to inform the XmlSerializer
' that the Vehicle type should be recognized when deserializing.
<SoapInclude(GetType(Vehicle))> _
Public Class Group
    Public GroupName As String 
   public GroupVehicle As Vehicle 
End Class

Public Class Vehicle
   Public licenseNumber As String 
End Class

 
Public Class Run
   Shared Sub Main()
      Dim test As Run = new Run()
      test.DeserializeObject("UnrefObj.xml")
   End Sub
   
   Public Sub DeserializeObject(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)

      AddHandler mySerializer.UnreferencedObject, _
      AddressOf Serializer_UnreferencedObject

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

      ' Deserialize and cast the object.
      Dim myGroup As Group  
      myGroup = CType( mySerializer.Deserialize(reader), Group)
      reader.ReadEndElement()
      reader.Close()
   End Sub
   
   Private Sub Serializer_UnreferencedObject _
   (sender As object , e As UnreferencedObjectEventArgs)
      Console.WriteLine("UnreferencedObject:")
      Console.WriteLine("ID: " + e.UnreferencedId)
      Console.WriteLine("UnreferencedObject: " + e.UnreferencedObject)
      Dim myVehicle As Vehicle = CType(e.UnreferencedObject, Vehicle)
      Console.WriteLine("License: " + myVehicle.licenseNumber)
       End Sub
 End Class
 
' The XML document should contain this information:


'  <Group xmlns:xsi="http:'www.w3.org/2001/XMLSchema-instance" 
'xmlns:xsd="http:'www.w3.org/2001/XMLSchema" id="id1" 
'n1:GroupName=".NET" xmlns:n1="http:'www.cpandl.com">

'<Vehicle id="id2" n1:type="Vehicle" 
'xmlns:n1="http:'www.w3.org/2001/XMLSchema-instance">
'    <licenseNumber xmlns:q1="http:'www.w3.org/2001/XMLSchema" 
'n1:type="q1:string">ABCD</licenseNumber>

'<Vehicle id="id3" n1:type="Vehicle" 
'xmlns:n1="http:'www.w3.org/2001/XMLSchema-instance">
'    <licenseNumber xmlns:q1="http:'www.w3.org/2001/XMLSchema" 
'n1:type="q1:string">1234</licenseNumber>


注釈

UnreferencedObjectのみイベントが発生したときに、 XmlSerializer World Wide Web Consortium のドキュメントのセクション 5 に準拠した SOAP メッセージを含む XML ドキュメントを逆シリアル化するために使用簡易オブジェクト アクセス プロトコル (SOAP) 1.1.The UnreferencedObject event only occurs when the XmlSerializer is used to deserialize an XML document that contains a SOAP message that conforms to section 5 of the World Wide Web Consortium document, Simple Object Access Protocol (SOAP) 1.1.

セクション 5 に準拠しているドキュメントは、特殊な形式です。Documents that conform to section 5 are in a special format. 少なくとも、このようなドキュメントには、SOAP メッセージの本文が含まれています。At the very least, such a document includes the main body of the SOAP message. ただし、ドキュメントにインラインで定義されたすべての型を持つではなく、一部の型定義は、ドキュメント内の最上位の要素への参照としてエンコードできます。However, rather than having all types defined inline in the document, some type definitions can be encoded as references to top-level elements in the document. したがって、参照である本文にあるすべての要素の必要があります、型定義を含む対応する要素。Thus, for every element found in the main body that is a reference, there must be a corresponding element that contains the type definition. 参照元の要素と型定義を関連付け、型定義に、id属性、一意の文字列 ID と参照元の要素を設定するが、href同じ ID を参照する属性To correlate the referencing element and the type definition, the type definition has an id attribute set to a unique string ID and the referencing element has an href attribute that references the same ID.

<Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" id="id1" n1:GroupName=".NET" GroupNumber="ZDI=" CreationDate="2002-05-02" xmlns:n1="http:'www.cpandl.com">  
    <PosInt xsi:type="xsd:nonNegativeInteger">10000</PosInt>  
    <GroupVehicle href="#id2" />  
  </Group>  
  <Vehicle id="id2" n1:type="Vehicle" xmlns:n1="http://www.w3.org/2001/XMLSchema-instance">  
    <licenseNumber xmlns:q1="http://www.w3.org/2001/XMLSchema" n1:type="q1:string">1234</licenseNumber>  
  </Vehicle>  

UnreferencedObjectドキュメント内で見つかった種類の定義がある場合に、イベントが発生するが、メインの本文内のパラメーターから参照されていません。The UnreferencedObject event occur when there is a type definition found in the document, but no parameter in the main body references it. 調べることで参照されないオブジェクトの XML 型を取得するには、イベントの発生時に、UnreferencedObjectのプロパティ、UnreferencedObjectEventArgsクラス。When the event occurs, you can retrieve the XML type of the unreferenced object by examining the UnreferencedObject property of the UnreferencedObjectEventArgs class. オブジェクトの XML ID がによって返される、UnreferencedIdプロパティ。The XML ID of the object is returned by the UnreferencedId property.

UnreferencedObjectとイベントを混同しない必要があります、UnknownElementUnknownNodeイベントでは、XML ノードまたは要素の型に対応するクラスのメンバーがない場合に発生します。The UnreferencedObject event should not be confused with the UnknownElement and UnknownNode events, which occur when there is no class member that corresponds to the XML node or element type.

適用対象

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