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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 override void EndWrite(
	IAsyncResult asyncResult


Type: System.IAsyncResult

An IAsyncResult instance returned by a call to BeginWrite


asyncResult is null.


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.
    // The following method is called when the write operation completes.
    static void EndWriteCallback (IAsyncResult* ar)
        Console::WriteLine(S"Client ending write operation...");
        NegotiateStream* authStream = dynamic_cast<NegotiateStream*> (ar->AsyncState);

        // End the asynchronous operation.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0