Gets a member of the DragDropEffects enumeration that specifies which operations are allowed by the originator of the drag event.
Assembly: PresentationCore (in PresentationCore.dll)
When a drag-and-drop operation is initiated by calling the DoDragDrop method, permissible operations are specified with a member of the DragDropEffects enumeration. For example, when dragging a read-only file the drag initiator should indicate that the file can be copied, but not moved. Before attempting to perform an operation on dragged data, examine this property to ensure that the operation is allowed.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, 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.