Assembly: mscorlib (in mscorlib.dll)
You can assume it is safe to discard any resources you allocate for use by the asynchronous operation when this property is true.Notes to Implementers Implementers will typically return the value of a private field or internal test as the value of this property. Notes to Callers Clients that poll for operation status (as opposed to waiting on a synchronization object), use this property to determine the status of the operation.
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.