ObjectHandle.Unwrap 方法

定義

傳回被包裝的物件。Returns the wrapped object.

public:
 virtual System::Object ^ Unwrap();
public object Unwrap ();
abstract member Unwrap : unit -> obj
override this.Unwrap : unit -> obj
Public Function Unwrap () As Object

傳回

被包裝的物件。The wrapped object.

實作

範例

下列程式碼範例示範如何啟動另AppDomain一個物件、 Unwrap使用方法抓取它的 proxy,以及使用 proxy 來存取遠端物件。The following code example demonstrates how to activate an object in another AppDomain, retrieve a proxy to it with the Unwrap method, and use the proxy to access the remote object.

// 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())

給呼叫者的注意事項

是遠端處理存留期服務所追蹤的遠端MarshalByRefObjectObjectHandleA ObjectHandle is a remoted MarshalByRefObject that is tracked by the remoting lifetime service. 如果的存留期租用ObjectHandle到期,目前方法的呼叫可能會失敗。A call to the current method can fail if the lifetime lease on the ObjectHandle expires.

適用於