Cancels the associated command or operation.
member CancelCommand : unit -> unit
This method sets the CommandCancelled property to true. After an event has been canceled, it cannot be reactivated.
If this method is called on a drag-and-drop operation (as indicated by the IsDragDrop property), the entire drag-and-drop operation is canceled.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.