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NegotiateStream.EndWrite Method

Ends an asynchronous write operation that was started with a call to BeginWrite.

Namespace:  System.Net.Security
Assembly:  System (in System.dll)

Public Overrides Sub EndWrite ( _
	asyncResult As IAsyncResult _


Type: System.IAsyncResult
An IAsyncResult instance returned by a call to BeginWrite


asyncResult is Nothing.


The asyncResult was not created by a call to BeginWrite.


There is no pending write operation to complete.


The write operation failed.


Authentication has not occurred.

If the operation has not completed, this method blocks until it does.

You cannot call this method until you have successfully authenticated. To authenticate, call one of the AuthenticateAsClient, BeginAuthenticateAsClient, AuthenticateAsServer, or BeginAuthenticateAsServer methods.

To perform this operation synchronously, use the Write method.

The following code example demonstrates a method that is called to complete the asynchronous write operation. For an example that demonstrates starting the operation, see BeginWrite.

' The following method is called when the write operation completes.
Public Shared Sub EndWriteCallback(ByVal ar As IAsyncResult)
    Console.WriteLine("Client ending write operation...")
    Dim authStream As NegotiateStream = CType(ar.AsyncState, NegotiateStream)

    ' End the asynchronous operation.
End Sub

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.