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DragDrop.PreviewDragOver Attached Event

Occurs continuously while an object is dragged within the bounds of an element that is acting as a drop target.

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

See AddPreviewDragOverHandler, RemovePreviewDragOverHandler
<object DragDrop.PreviewDragOver="DragEventHandler" .../>

This event is raised continuously while a dragged object is within the bounds of an element that is acting as a drop target. This event is not raised if the element’s AllowDrop property is false.

For more information, see the DragOver event.

Routed Event Information

Identifier field


Routing strategy




The corresponding bubbling event is DragOver.

.NET Framework

Supported in: 4.6, 4.5, 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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