DragEventArgs.AllowedEffects Property

Gets a member of the DragDropEffects enumeration that specifies which operations are allowed by the originator of the drag event.

Namespace:  System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)

'Declaration
Public ReadOnly Property AllowedEffects As DragDropEffects

Property Value

Type: System.Windows.DragDropEffects
A member of the DragDropEffects enumeration that specifies which operations are allowed by the originator of the drag event.

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.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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