This terminates an asychronous operation.
IAsyncResultobject returned by a call that begins an asynchronous operation.
This method does nothing if the asynchronous operation has already completed.
|ArgumentException||This is thown when asyncResult is an invalid IAsyncResult.|
|ArgumentNullException||This is thrown when asyncResult is a null reference.|
|InvalidOperationException||This is thrown when the client is not connected.|
|DdeException||This is thrown when the asynchronous operation could not be abandoned.|