ObjectHandle.Unwrap Methode

Definition

Namespace:

System.Runtime.Remoting

Assembly:

mscorlib.dll

Gibt das umschlossene Objekt zurück.

public:
 virtual System::Object ^ Unwrap();

public object Unwrap();

abstract member Unwrap : unit -> obj
override this.Unwrap : unit -> obj

Public Function Unwrap () As Object

Gibt zurück

Object

Das umschlossene Objekt.

Implementiert

Unwrap()

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie ein Objekt in einem anderen AppDomainaktiviert wird, ein Proxy mit der Unwrap Methode abgerufen und der Proxy für den Zugriff auf das Remoteobjekt verwendet wird.

// Creates an instance of MyType defined in the assembly called ObjectHandleAssembly.
ObjectHandle^ obj = domain->CreateInstance( "ObjectHandleAssembly", "MyType" );

// Unwraps the proxy to the MyType object created in the other AppDomain.
MyType^ testObj = dynamic_cast<MyType^>(obj->Unwrap());
if ( RemotingServices::IsTransparentProxy( testObj ) )
   Console::WriteLine( "The unwrapped object is a proxy." );
else
   Console::WriteLine( "The unwrapped object is not a proxy!" );

Console::WriteLine( "" );
Console::Write( "Calling a method on the object located in an AppDomain with the hash code " );
Console::WriteLine( testObj->GetAppDomainHashCode() );

// Creates an instance of MyType defined in the assembly called ObjectHandleAssembly.
ObjectHandle obj = domain.CreateInstance("ObjectHandleAssembly", "MyType");

// Unwrapps the proxy to the MyType object created in the other AppDomain.
MyType testObj = (MyType)obj.Unwrap();

if(RemotingServices.IsTransparentProxy(testObj))
   Console.WriteLine("The unwrapped object is a proxy.");
else
   Console.WriteLine("The unwrapped object is not a proxy!");

Console.WriteLine("");
Console.Write("Calling a method on the object located in an AppDomain with the hash code ");
Console.WriteLine(testObj.GetAppDomainHashCode());

' Creates an instance of MyType defined in the assembly called ObjectHandleAssembly.
Dim obj As ObjectHandle = domain.CreateInstance("ObjectHandleAssembly", "MyType")

' Unwrapps the proxy to the MyType object created in the other AppDomain.
Dim testObj As MyType = CType(obj.Unwrap(), MyType)

If RemotingServices.IsTransparentProxy(testObj) Then
   Console.WriteLine("The unwrapped object is a proxy.")
Else
   Console.WriteLine("The unwrapped object is not a proxy!")
End If 
Console.WriteLine("")
Console.Write("Calling a method on the object located in an AppDomain with the hash code ")
Console.WriteLine(testObj.GetAppDomainHashCode())

Hinweise für Aufrufer

A ObjectHandle ist eine Remoteverbindung MarshalByRefObject , die vom Remoting-Lebensdauerdienst nachverfolgt wird. Ein Aufruf der aktuellen Methode kann fehlschlagen, wenn die Lebensdauer-Lease abläuft ObjectHandle .