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 override void EndWrite (
	IAsyncResult asyncResult
public void EndWrite (
	IAsyncResult asyncResult
public override function EndWrite (
	asyncResult : IAsyncResult
Not applicable.



An IAsyncResult instance returned by a call to BeginWrite

Exception typeCondition


asyncResult is a null reference (Nothing in Visual Basic).


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 static void EndWriteCallback (IAsyncResult ar)
    Console.WriteLine("Client ending write operation...");
    NegotiateStream authStream = (NegotiateStream) ar.AsyncState;

    // End the asynchronous operation.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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