ObjectHandle.Unwrap Metode

Definisi

Ruang nama:

System.Runtime.Remoting

Rakitan:

System.Runtime.dll

Sumber:

ObjectHandle.cs

Mengembalikan objek yang dibungkus.

public:
 System::Object ^ Unwrap();

public object? Unwrap ();

member this.Unwrap : unit -> obj

Public Function Unwrap () As Object

Mengembalikan

Object

Objek yang dibungkus.

Contoh

Contoh kode berikut menunjukkan cara mengaktifkan objek di objek lain AppDomain, mengambil proksi dengan Unwrap metode , dan menggunakan proksi untuk mengakses objek jarak jauh.

// 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())

Catatan Bagi Pemanggil

ObjectHandle adalah remoted MarshalByRefObject yang dilacak oleh layanan seumur hidup jarak jauh. Panggilan ke metode saat ini dapat gagal jika masa pakai sewa pada kedaluwarsa ObjectHandle .