Ends the lifetime of an asynchronous operation.
Assembly: System (in System.dll)
Call the method to end the lifetime of an asynchronous operation. After this method is called for a particular task, calls to its corresponding AsyncOperation will raise an exception.
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.