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)

public DragDropEffects AllowedEffects { get; }

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, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, 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.

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