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UIElement3D.PreviewDragEnter Event

Occurs when the input system reports an underlying drag event with this element as the drag target.

Namespace:  System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

'Declaration
Public Event PreviewDragEnter As DragEventHandler
'Usage
Dim instance As UIElement3D 
Dim handler As DragEventHandler 

AddHandler instance.PreviewDragEnter, handler
<object PreviewDragEnter="DragEventHandler" .../>

Identifier field

PreviewDragEnterEvent

Routing strategy

Tunneling

Delegate

DragEventHandler

  • The corresponding bubbling event is DragEnter.

  • Override OnPreviewDragEnter to implement class handling for this event in derived classes.

This event creates an alias for the DragDrop.PreviewDragEnter attached event for this class, so that PreviewDragEnter is part of the class members list when UIElement3D is inherited as a base element. Event handlers that are attached to the PreviewDragEnter event are attached to the underlying DragDrop.PreviewDragEnter attached event and receive the same event data instance.

PreviewDragEnter is introduced in the .NET Framework version 3.5. For more information, see .NET Framework 3.5 Architecture.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5 SP1, 3.0 SP1
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