Public Overloads Sub ExecuteAsync( _
   ByVal userState As Object _
) 

public void ExecuteAsync( 
   object userState
)

Parameters

userState

A user-defined object that is passed to the method invoked when the asynchronous operation completes or fails.

A response can be received in two ways—using IResponder interfaces passed as the userState object and/or using listeners of the ExecuteCompleted and Failed events registered for this command.

The IResponder, if specified, is notified first. After that the received event is dispatched for listeners of this command. If a response is succesfully received, the result is assigned to the LastResult property of this command.

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

Reference