SerializableAttribute Klasse

Definition

public ref class SerializableAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Delegate | System.AttributeTargets.Enum | System.AttributeTargets.Struct, Inherited=false)]
public sealed class SerializableAttribute : Attribute

[System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Delegate | System.AttributeTargets.Enum | System.AttributeTargets.Struct, Inherited=false)]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class SerializableAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Delegate | System.AttributeTargets.Enum | System.AttributeTargets.Struct, Inherited=false)>]
type SerializableAttribute = class
    inherit Attribute

[<System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Delegate | System.AttributeTargets.Enum | System.AttributeTargets.Struct, Inherited=false)>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type SerializableAttribute = class
    inherit Attribute

Public NotInheritable Class SerializableAttribute
Inherits Attribute

Vererbung

Object

Attribute

SerializableAttribute

Attribute

AttributeUsageAttribute ComVisibleAttribute

Beispiele

Im folgenden Beispiel wird die SOAP-Serialisierung eines Objekts veranschaulicht, das mit dem SerializableAttribute -Attribut gekennzeichnet ist.

#using <system.dll>
#using <system.messaging.dll>
#using <System.Runtime.Serialization.Formatters.Soap.dll>

using namespace System;
using namespace System::IO;
using namespace System::Runtime::Serialization::Formatters::Soap;

// A test object that needs to be serialized.

[Serializable]
ref class TestSimpleObject
{
private:
   int member1;
   String^ member2;
   String^ member3;
   double member4;

public:

   // A field that is not serialized.

   [NonSerialized]
   String^ member5;
   TestSimpleObject()
   {
      member1 = 11;
      member2 = "hello";
      member3 = "hello";
      member4 = 3.14159265;
      member5 = "hello world!";
   }

   void Print()
   {
      Console::WriteLine( "member1 = ' {0}'", member1 );
      Console::WriteLine( "member2 = ' {0}'", member2 );
      Console::WriteLine( "member3 = ' {0}'", member3 );
      Console::WriteLine( "member4 = ' {0}'", member4 );
      Console::WriteLine( "member5 = ' {0}'", member5 );
   }

};

int main()
{
   // Creates a new TestSimpleObject object.
   TestSimpleObject^ obj = gcnew TestSimpleObject;
   Console::WriteLine( "Before serialization the Object* contains: " );
   obj->Print();

   // Opens a file and serializes the object into it in binary format.
   Stream^ stream = File::Open( "data.xml", FileMode::Create );
   SoapFormatter^ formatter = gcnew SoapFormatter;

   formatter->Serialize( stream, obj );
   stream->Close();

   // Empties obj.
   obj = nullptr;

   // Opens file S"data.xml" and deserializes the object from it.
   stream = File::Open( "data.xml", FileMode::Open );
   formatter = gcnew SoapFormatter;

   obj = dynamic_cast<TestSimpleObject^>(formatter->Deserialize( stream ));
   stream->Close();
   Console::WriteLine( "" );
   Console::WriteLine( "After deserialization the object contains: " );
   obj->Print();
}

using System;
using System.IO;
using System.Runtime.Serialization.Formatters.Soap;

public class Test {
   public static void Main()  {

      // Creates a new TestSimpleObject object.
      TestSimpleObject obj = new TestSimpleObject();

      Console.WriteLine("Before serialization the object contains: ");
      obj.Print();

      // Opens a file and serializes the object into it in binary format.
      Stream stream = File.Open("data.xml", FileMode.Create);
      SoapFormatter formatter = new SoapFormatter();

      formatter.Serialize(stream, obj);
      stream.Close();

      // Empties obj.
      obj = null;

      // Opens file "data.xml" and deserializes the object from it.
      stream = File.Open("data.xml", FileMode.Open);
      formatter = new SoapFormatter();

      obj = (TestSimpleObject)formatter.Deserialize(stream);
      stream.Close();

      Console.WriteLine("");
      Console.WriteLine("After deserialization the object contains: ");
      obj.Print();
   }
}

// A test object that needs to be serialized.
[Serializable()]
public class TestSimpleObject  {

    public int member1;
    public string member2;
    public string member3;
    public double member4;

    // A field that is not serialized.
    [NonSerialized()] public string member5;

    public TestSimpleObject() {

        member1 = 11;
        member2 = "hello";
        member3 = "hello";
        member4 = 3.14159265;
        member5 = "hello world!";
    }

    public void Print() {

        Console.WriteLine("member1 = '{0}'", member1);
        Console.WriteLine("member2 = '{0}'", member2);
        Console.WriteLine("member3 = '{0}'", member3);
        Console.WriteLine("member4 = '{0}'", member4);
        Console.WriteLine("member5 = '{0}'", member5);
    }
}

open System
open System.IO
open System.Runtime.Serialization.Formatters.Soap

// A test object that needs to be serialized.
[<Serializable>]
type TestSimpleObject() =
    let member1 = 11
    let member2 = "hello"
    let member3 = "hello"
    let member4 = 3.14159265

    // A field that is not serialized.
    [<NonSerialized>]
    let member5 = "hello world!"

    member _.Print() =
        printfn $"member1 = '{member1}'"
        printfn $"member2 = '{member2}'"
        printfn $"member3 = '{member3}'"
        printfn $"member4 = '{member4}'"
        printfn $"member5 = '{member5}'"

[<EntryPoint>]
let main _ =
    // Creates a new TestSimpleObject object.
    let obj = TestSimpleObject()

    printfn "Before serialization the object contains: "
    obj.Print()

    // Opens a file and serializes the object into it in binary format.
    let stream = File.Open("data.xml", FileMode.Create)
    let formatter = SoapFormatter()

    formatter.Serialize(stream, obj)
    stream.Close()

    // Opens file "data.xml" and deserializes the object from it.
    let stream = File.Open("data.xml", FileMode.Open)
    let formatter = new SoapFormatter()

    let obj = formatter.Deserialize stream :?> TestSimpleObject
    stream.Close()

    printfn "\nAfter deserialization the object contains: "
    obj.Print()
    0

Imports System.IO
Imports System.Runtime.Serialization
Imports System.Runtime.Serialization.Formatters.Soap




Public Class Test
   
   Public Shared Sub Main()
      
      ' Creates a new TestSimpleObject object.
      Dim obj As New TestSimpleObject()
      
      Console.WriteLine("Before serialization the object contains: ")
      obj.Print()
      
      ' Opens a file and serializes the object into it in binary format.
      Dim stream As Stream = File.Open("data.xml", FileMode.Create)
      Dim formatter As New SoapFormatter()
      


      formatter.Serialize(stream, obj)
      stream.Close()
      
      ' Empties obj.
      obj = Nothing
      
      ' Opens file "data.xml" and deserializes the object from it.
      stream = File.Open("data.xml", FileMode.Open)
      formatter = New SoapFormatter()



      obj = CType(formatter.Deserialize(stream), TestSimpleObject)
      stream.Close()
      
      Console.WriteLine("")
      Console.WriteLine("After deserialization the object contains: ")
      obj.Print()

   End Sub

End Class


' A test object that needs to be serialized.
<Serializable()> Public Class TestSimpleObject
   
   Public member1 As Integer
   Public member2 As String
   Public member3 As String
   Public member4 As Double
   
   ' A member that is not serialized.
   <NonSerialized()> Public member5 As String  
  
   
   Public Sub New()     
      member1 = 11
      member2 = "hello"
      member3 = "hello"
      member4 = 3.14159265
      member5 = "hello world!"
   End Sub
      
   
   Public Sub Print()      
      Console.WriteLine("member1 = '{0}'", member1)
      Console.WriteLine("member2 = '{0}'", member2)
      Console.WriteLine("member3 = '{0}'", member3)
      Console.WriteLine("member4 = '{0}'", member4)
      Console.WriteLine("member5 = '{0}'", member5)
   End Sub

End Class

Hinweise

Wenden Sie das SerializableAttribute Attribut auf einen Typ an, um anzugeben, dass Instanzen dieses Typs mithilfe der binären oder XML-Serialisierung serialisiert werden können. Die Common Language Runtime löst aus SerializationException , wenn das Attribut bei einem beliebigen Typ im Diagramm der serialisierten Objekte nicht SerializableAttribute angewendet wird.

Wenden Sie das SerializableAttribute Attribut auch dann an, wenn die -Klasse auch die ISerializable Schnittstelle implementiert, um den binären Serialisierungsprozess zu steuern.

Wenn Sie das SerializableAttribute Attribut auf einen Typ anwenden, werden standardmäßig alle privaten und öffentlichen Felder serialisiert. Sie können die binäre Serialisierung präziser steuern, indem Sie die ISerializable Schnittstelle implementieren, um den Serialisierungsprozess zu überschreiben.

Alternativ können Sie Felder von der Serialisierung ausschließen, indem Sie das NonSerializedAttribute Attribut auf das Feld anwenden. Wenn ein Feld eines binär serialisierbaren Typs einen Zeiger, ein Handle oder eine andere Datenstruktur enthält, die für eine bestimmte Umgebung spezifisch ist und nicht sinnvoll in einer anderen Umgebung rekonstituiert werden kann, sollten Sie das Attribut auf dieses NonSerializedAttribute Feld anwenden.

Weitere Informationen zur Verwendung von Attributen finden Sie unter Attribute. Weitere Informationen zur binären Serialisierung finden Sie unter System.Runtime.Serialization.

Konstruktoren

Eigenschaften

Methoden

Explizite Schnittstellenimplementierungen

Gilt für:

Weitere Informationen

• Attribute
• ISerializable
• NonSerializedAttribute
• Erweitern von Metadaten mithilfe von Attributen
• XML- und SOAP-Serialisierung