SerializationInfo SerializationInfo SerializationInfo SerializationInfo Class

Definice

Ukládá všechna data potřebná k serializaci nebo deserializaci objektu.Stores all the data needed to serialize or deserialize an object. Tuto třídu nelze zdědit.This class cannot be inherited.

public ref class SerializationInfo sealed
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class SerializationInfo
type SerializationInfo = class
Public NotInheritable Class SerializationInfo
Dědičnost
SerializationInfoSerializationInfoSerializationInfoSerializationInfo
Atributy

Příklady

Následující příklad kódu ukazuje SerializationInfo pro vlastní serializaci a deserializaci různých hodnot.The following code example demonstrates the SerializationInfo for custom serialization and deserialization of various values.

using namespace System;
using namespace System::IO;
using namespace System::Collections;
using namespace System::Runtime::Serialization::Formatters::Binary;
using namespace System::Runtime::Serialization;

ref class SingletonSerializationHelper;

// There should be only one instance of this type per AppDomain.

[Serializable]
public ref class Singleton sealed: public ISerializable
{
private:

   // This is the one instance of this type.
   static Singleton^ theOneObject = gcnew Singleton;

public:

   // Here are the instance fields.
   String^ someString;
   Int32 someNumber;

private:

   // Private constructor allowing this type to construct the singleton.
   Singleton()
   {
      
      // Do whatever is necessary to initialize the singleton.
      someString = "This is a String* field";
      someNumber = 123;
   }

public:

   // A method returning a reference to the singleton.
   static Singleton^ GetSingleton()
   {
      return theOneObject;
   }

   // A method called when serializing a Singleton.
   [System::Security::Permissions::SecurityPermissionAttribute
   (System::Security::Permissions::SecurityAction::LinkDemand, 
   Flags=System::Security::Permissions::SecurityPermissionFlag::SerializationFormatter)]
   virtual void GetObjectData( SerializationInfo^ info, StreamingContext context )
   {
      // Instead of serializing this Object*, we will  
      // serialize a SingletonSerializationHelp instead.
      info->SetType( SingletonSerializationHelper::typeid );

      // No other values need to be added.
   }

   // NOTE: ISerializable*'s special constructor is NOT necessary 
   // because it's never called
};

[Serializable]
private ref class SingletonSerializationHelper sealed: public IObjectReference
{
public:

   // This Object* has no fields (although it could).
   // GetRealObject is called after this Object* is deserialized
   virtual Object^ GetRealObject( StreamingContext context )
   {
      // When deserialiing this Object*, return a reference to 
      // the singleton Object* instead.
      return Singleton::GetSingleton();
   }
};

[STAThread]
int main()
{
   FileStream^ fs = gcnew FileStream( "DataFile.dat",FileMode::Create );
   try
   {
      // Construct a BinaryFormatter and use it 
      // to serialize the data to the stream.
      BinaryFormatter^ formatter = gcnew BinaryFormatter;

      // Create an array with multiple elements refering to 
      // the one Singleton Object*.
      array<Singleton^>^a1 = {Singleton::GetSingleton(),Singleton::GetSingleton()};

      // This displays S"True".
      Console::WriteLine( "Do both array elements refer to the same Object? {0}", (a1[ 0 ] == a1[ 1 ]) );

      // Serialize the array elements.
      formatter->Serialize( fs, a1 );

      // Deserialize the array elements.
      fs->Position = 0;
      array<Singleton^>^a2 = (array<Singleton^>^)formatter->Deserialize( fs );

      // This displays S"True".
      Console::WriteLine( "Do both array elements refer to the same Object? {0}", (a2[ 0 ] == a2[ 1 ]) );

      // This displays S"True".
      Console::WriteLine( "Do all  array elements refer to the same Object? {0}", (a1[ 0 ] == a2[ 0 ]) );
   }
   catch ( SerializationException^ e ) 
   {
      Console::WriteLine( "Failed to serialize. Reason: {0}", e->Message );
      throw;
   }
   finally
   {
      fs->Close();
   }

   return 0;
}
using System;
using System.Text;
using System.IO;
// Add references to Soap and Binary formatters.
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization.Formatters.Soap ;
using System.Runtime.Serialization;


[Serializable]
public class MyItemType : ISerializable
{
    public MyItemType()
    {
        // Empty constructor required to compile.
    }

    // The value to serialize.
    private string myProperty_value;

    public string MyProperty
    {
        get { return myProperty_value; }
        set { myProperty_value = value; }
    }
        
    // Implement this method to serialize data. The method is called 
    // on serialization.
    public void GetObjectData(SerializationInfo info, StreamingContext context)
    {
        // Use the AddValue method to specify serialized values.
        info.AddValue("props", myProperty_value, typeof(string));

    }

    // The special constructor is used to deserialize values.
    public MyItemType(SerializationInfo info, StreamingContext context)
    {
        // Reset the property value using the GetValue method.
        myProperty_value = (string) info.GetValue("props", typeof(string));
    }
}

// This is a console application. 
public static class Test
{
    static void Main()
    {
        // This is the name of the file holding the data. You can use any file extension you like.
        string fileName = "dataStuff.myData";

        // Use a BinaryFormatter or SoapFormatter.
        IFormatter formatter = new BinaryFormatter();
        //IFormatter formatter = new SoapFormatter();
            
        Test.SerializeItem(fileName, formatter); // Serialize an instance of the class.
        Test.DeserializeItem(fileName, formatter); // Deserialize the instance.
        Console.WriteLine("Done");
        Console.ReadLine();
    }

    public static void SerializeItem(string fileName, IFormatter formatter)
    {
        // Create an instance of the type and serialize it.
        MyItemType t = new MyItemType();
        t.MyProperty = "Hello World";

        FileStream s = new FileStream(fileName , FileMode.Create);
        formatter.Serialize(s, t);            
        s.Close();
    }


    public static void DeserializeItem(string fileName, IFormatter formatter)
    {
        FileStream s = new FileStream(fileName, FileMode.Open);
        MyItemType t = (MyItemType)formatter.Deserialize(s);
        Console.WriteLine(t.MyProperty);            
    }       
}
Imports System.Text
Imports System.IO
' Add references to Soap and Binary formatters.
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Runtime.Serialization.Formatters.Soap
Imports System.Runtime.Serialization


<Serializable()> _
Public Class MyItemType
    Implements ISerializable
    ' Empty constructor required to compile.
    Public Sub New()
    End Sub

    ' The value to serialize.
    Private myProperty_value As String

    Public Property MyProperty() As String
        Get
            Return myProperty_value
        End Get
        Set(value As String)
            myProperty_value = value
        End Set
    End Property

    ' Implement this method to serialize data. The method is called 
    ' on serialization.
    Public Sub GetObjectData(info As SerializationInfo, context As StreamingContext) Implements ISerializable.GetObjectData
        ' Use the AddValue method to specify serialized values.
        info.AddValue("props", myProperty_value, GetType(String))

    End Sub

    ' The special constructor is used to deserialize values.
    Public Sub New(info As SerializationInfo, context As StreamingContext)
        ' Reset the property value using the GetValue method.
        myProperty_value = DirectCast(info.GetValue("props", GetType(String)), String)
    End Sub
End Class

' This is a console application. 
Public Class Test


    Public Shared Sub Main()
        ' This is the name of the file holding the data. You can use any file extension you like.
        Dim fileName As String = "dataStuff.myData"

        ' Use a BinaryFormatter or SoapFormatter.
        Dim formatter As IFormatter = New BinaryFormatter()
        ' Dim formatter As IFormatter = New SoapFormatter()

        Test.SerializeItem(fileName, formatter)
        ' Serialize an instance of the class.
        Test.DeserializeItem(fileName, formatter)
        ' Deserialize the instance.
        Console.WriteLine("Done")
        Console.ReadLine()
    End Sub

    Public Shared Sub SerializeItem(fileName As String, formatter As IFormatter)
        ' Create an instance of the type and serialize it.
        Dim myType As New MyItemType()
        myType.MyProperty = "Hello World"

        Dim fs As New FileStream(fileName, FileMode.Create)
        formatter.Serialize(fs, myType)
        fs.Close()
    End Sub


    Public Shared Sub DeserializeItem(fileName As String, formatter As IFormatter)
        Dim fs As New FileStream(fileName, FileMode.Open)

        Dim myType As MyItemType = DirectCast(formatter.Deserialize(fs), MyItemType)
        Console.WriteLine(myType.MyProperty)
    End Sub
End Class

Poznámky

Tuto třídu používají objekty s chováním vlastního serializace.This class is used by objects with custom serialization behavior. Metoda buď ISerializable neboISerializationSurrogate naplníSerializationInfo úložiště názvem, typem a hodnotou jednotlivých informací, které chce serializovat. GetObjectDataThe GetObjectData method on either ISerializable or ISerializationSurrogate populates the SerializationInfo store with the name, type, and value of each piece of information it wants to serialize. Během deserializace mohou příslušné funkce tyto informace extrahovat.During deserialization, the appropriate function can extract this information.

Objekty jsou přidány SerializationInfo do úložiště v době serializace AddValue pomocí SerializationInfo metod a extrahovány z úložiště při deserializaci pomocí GetValue metod.Objects are added to the SerializationInfo store at serialization time using the AddValue methods and extracted from the SerializationInfo store at deserialization using the GetValue methods.

Další informace o přizpůsobení serializace naleznete v tématu Custom Serialization.For more information about customizing serialization, see Custom Serialization.

Konstruktory

SerializationInfo(Type, IFormatterConverter) SerializationInfo(Type, IFormatterConverter) SerializationInfo(Type, IFormatterConverter) SerializationInfo(Type, IFormatterConverter)

Vytvoří novou instanci SerializationInfo třídy.Creates a new instance of the SerializationInfo class.

SerializationInfo(Type, IFormatterConverter, Boolean) SerializationInfo(Type, IFormatterConverter, Boolean) SerializationInfo(Type, IFormatterConverter, Boolean) SerializationInfo(Type, IFormatterConverter, Boolean)

Inicializuje novou instanci třídy SerializationInfo třídy.Initializes a new instance of the SerializationInfo class.

Vlastnosti

AssemblyName AssemblyName AssemblyName AssemblyName

Získá nebo nastaví název sestavení typu k serializaci pouze během serializace.Gets or sets the assembly name of the type to serialize during serialization only.

FullTypeName FullTypeName FullTypeName FullTypeName

Získá nebo nastaví úplný název Type serializace.Gets or sets the full name of the Type to serialize.

IsAssemblyNameSetExplicit IsAssemblyNameSetExplicit IsAssemblyNameSetExplicit IsAssemblyNameSetExplicit

Získá, zda byl název sestavení explicitně nastaven.Gets whether the assembly name has been explicitly set.

IsFullTypeNameSetExplicit IsFullTypeNameSetExplicit IsFullTypeNameSetExplicit IsFullTypeNameSetExplicit

Získá, zda byl úplný název typu explicitně nastaven.Gets whether the full type name has been explicitly set.

MemberCount MemberCount MemberCount MemberCount

Získá počet členů, kteří byli přidáni do SerializationInfo úložiště.Gets the number of members that have been added to the SerializationInfo store.

ObjectType ObjectType ObjectType ObjectType

Vrátí typ objektu, který se má serializovat.Returns the type of the object to be serialized.

Metody

AddValue(String, Boolean) AddValue(String, Boolean) AddValue(String, Boolean) AddValue(String, Boolean)

Přidá logickou hodnotu do SerializationInfo úložiště.Adds a Boolean value into the SerializationInfo store.

AddValue(String, Byte) AddValue(String, Byte) AddValue(String, Byte) AddValue(String, Byte)

Přidá do SerializationInfo úložiště 8 bitů hodnoty unsigned integer.Adds an 8-bit unsigned integer value into the SerializationInfo store.

AddValue(String, Char) AddValue(String, Char) AddValue(String, Char) AddValue(String, Char)

Přidá hodnotu znaku Unicode do SerializationInfo úložiště.Adds a Unicode character value into the SerializationInfo store.

AddValue(String, DateTime) AddValue(String, DateTime) AddValue(String, DateTime) AddValue(String, DateTime)

DateTime Přidá hodnotuSerializationInfo do úložiště.Adds a DateTime value into the SerializationInfo store.

AddValue(String, Decimal) AddValue(String, Decimal) AddValue(String, Decimal) AddValue(String, Decimal)

Přidá do SerializationInfo úložiště desítkovou hodnotu.Adds a decimal value into the SerializationInfo store.

AddValue(String, Double) AddValue(String, Double) AddValue(String, Double) AddValue(String, Double)

Přidá hodnotu s plovoucí desetinnou čárkou s dvojitou SerializationInfo přesností do úložiště.Adds a double-precision floating-point value into the SerializationInfo store.

AddValue(String, Int16) AddValue(String, Int16) AddValue(String, Int16) AddValue(String, Int16)

Přidá 16bitové celočíselné hodnoty se znaménkem do SerializationInfo úložiště.Adds a 16-bit signed integer value into the SerializationInfo store.

AddValue(String, Int32) AddValue(String, Int32) AddValue(String, Int32) AddValue(String, Int32)

Přidá do SerializationInfo úložiště celočíselnou hodnotu se znaménkem 32.Adds a 32-bit signed integer value into the SerializationInfo store.

AddValue(String, Int64) AddValue(String, Int64) AddValue(String, Int64) AddValue(String, Int64)

Přidá do SerializationInfo úložiště celočíselnou hodnotu se znaménkem 64.Adds a 64-bit signed integer value into the SerializationInfo store.

AddValue(String, Object) AddValue(String, Object) AddValue(String, Object) AddValue(String, Object)

Přidá zadaný objekt do SerializationInfo úložiště, kde je přidružen k zadanému názvu.Adds the specified object into the SerializationInfo store, where it is associated with a specified name.

AddValue(String, Object, Type) AddValue(String, Object, Type) AddValue(String, Object, Type) AddValue(String, Object, Type)

SerializationInfo Přidá hodnotu do úložiště, kde name value je přidruženo k a je serializována jako Type typehodnota.Adds a value into the SerializationInfo store, where value is associated with name and is serialized as being of Typetype.

AddValue(String, SByte) AddValue(String, SByte) AddValue(String, SByte) AddValue(String, SByte)

Přidá 8bitové celé číslo se znaménkem v SerializationInfo úložišti.Adds an 8-bit signed integer value into the SerializationInfo store.

AddValue(String, Single) AddValue(String, Single) AddValue(String, Single) AddValue(String, Single)

Přidá do SerializationInfo úložiště hodnotu s jednoduchou přesností s plovoucí desetinnou čárkou.Adds a single-precision floating-point value into the SerializationInfo store.

AddValue(String, UInt16) AddValue(String, UInt16) AddValue(String, UInt16) AddValue(String, UInt16)

Přidá do SerializationInfo úložiště 16 bitů hodnoty unsigned integer.Adds a 16-bit unsigned integer value into the SerializationInfo store.

AddValue(String, UInt32) AddValue(String, UInt32) AddValue(String, UInt32) AddValue(String, UInt32)

Přidá hodnotu 32 unsigned integer do SerializationInfo úložiště.Adds a 32-bit unsigned integer value into the SerializationInfo store.

AddValue(String, UInt64) AddValue(String, UInt64) AddValue(String, UInt64) AddValue(String, UInt64)

Přidá hodnotu 64 unsigned integer do SerializationInfo úložiště.Adds a 64-bit unsigned integer value into the SerializationInfo store.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Určuje, zda se zadaný objekt rovná aktuálnímu objektu.Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetBoolean(String) GetBoolean(String) GetBoolean(String) GetBoolean(String)

Načte logickou hodnotu ze SerializationInfo Storu.Retrieves a Boolean value from the SerializationInfo store.

GetByte(String) GetByte(String) GetByte(String) GetByte(String)

Načte 8bitové hodnoty unsigned integer ze SerializationInfo Storu.Retrieves an 8-bit unsigned integer value from the SerializationInfo store.

GetChar(String) GetChar(String) GetChar(String) GetChar(String)

Načte hodnotu znaku Unicode ze SerializationInfo Storu.Retrieves a Unicode character value from the SerializationInfo store.

GetDateTime(String) GetDateTime(String) GetDateTime(String) GetDateTime(String)

DateTime Načte hodnotuSerializationInfo ze Storu.Retrieves a DateTime value from the SerializationInfo store.

GetDecimal(String) GetDecimal(String) GetDecimal(String) GetDecimal(String)

Načte desítkovou hodnotu ze SerializationInfo Storu.Retrieves a decimal value from the SerializationInfo store.

GetDouble(String) GetDouble(String) GetDouble(String) GetDouble(String)

Načte hodnotu s plovoucí desetinnou čárkou s dvojitou SerializationInfo přesností ze Storu.Retrieves a double-precision floating-point value from the SerializationInfo store.

GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()

Vrátí hodnotu SerializationInfo použitou pro iteraci dvojice název-hodnota ve Storu. SerializationInfoEnumeratorReturns a SerializationInfoEnumerator used to iterate through the name-value pairs in the SerializationInfo store.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Slouží jako výchozí funkce hash.Serves as the default hash function.

(Inherited from Object)
GetInt16(String) GetInt16(String) GetInt16(String) GetInt16(String)

Načte 16bitové celočíselné hodnoty se SerializationInfo znaménkem ze Storu.Retrieves a 16-bit signed integer value from the SerializationInfo store.

GetInt32(String) GetInt32(String) GetInt32(String) GetInt32(String)

Načte ze SerializationInfo Storu celočíselnou hodnotu se znaménkem (32).Retrieves a 32-bit signed integer value from the SerializationInfo store.

GetInt64(String) GetInt64(String) GetInt64(String) GetInt64(String)

Načte ze SerializationInfo Storu celočíselnou hodnotu se znaménkem (64).Retrieves a 64-bit signed integer value from the SerializationInfo store.

GetSByte(String) GetSByte(String) GetSByte(String) GetSByte(String)

Načte 8bitové celočíselnou hodnotu se znaménkem ze SerializationInfo Storu.Retrieves an 8-bit signed integer value from the SerializationInfo store.

GetSingle(String) GetSingle(String) GetSingle(String) GetSingle(String)

Načte hodnotu s jednoduchou přesností s plovoucí desetinnou čárkou ze SerializationInfo Storu.Retrieves a single-precision floating-point value from the SerializationInfo store.

GetString(String) GetString(String) GetString(String) GetString(String)

String Načte hodnotuSerializationInfo ze Storu.Retrieves a String value from the SerializationInfo store.

GetType() GetType() GetType() GetType()

Získá Type aktuální instance.Gets the Type of the current instance.

(Inherited from Object)
GetUInt16(String) GetUInt16(String) GetUInt16(String) GetUInt16(String)

Načte 16bitovou unsigned integer hodnotu ze SerializationInfo Storu.Retrieves a 16-bit unsigned integer value from the SerializationInfo store.

GetUInt32(String) GetUInt32(String) GetUInt32(String) GetUInt32(String)

Načte hodnotu 32 unsigned integer ze SerializationInfo Storu.Retrieves a 32-bit unsigned integer value from the SerializationInfo store.

GetUInt64(String) GetUInt64(String) GetUInt64(String) GetUInt64(String)

Načte hodnotu 64 unsigned integer ze SerializationInfo Storu.Retrieves a 64-bit unsigned integer value from the SerializationInfo store.

GetValue(String, Type) GetValue(String, Type) GetValue(String, Type) GetValue(String, Type)

Načte hodnotu ze SerializationInfo Storu.Retrieves a value from the SerializationInfo store.

MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Vytvoří Mělkou kopii aktuální Object.Creates a shallow copy of the current Object.

(Inherited from Object)
SetType(Type) SetType(Type) SetType(Type) SetType(Type)

Type Nastaví objekt, který se má serializovat.Sets the Type of the object to serialize.

ToString() ToString() ToString() ToString()

Vrací řetězec, který představuje aktuální objekt.Returns a string that represents the current object.

(Inherited from Object)

Platí pro

Viz také