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ActivityPreviewDesigner.OnDragEnter Method

Notifies the ActivityPreviewDesigner when a drag-drop operation is in progress and the user's mouse cursor enters the bounds of the designer.

Namespace: System.Workflow.ComponentModel.Design
Assembly: System.Workflow.ComponentModel (in system.workflow.componentmodel.dll)

Protected Overrides Sub OnDragEnter ( _
	e As ActivityDragEventArgs _
Dim e As ActivityDragEventArgs

protected void OnDragEnter (
	ActivityDragEventArgs e
protected override function OnDragEnter (
	e : ActivityDragEventArgs
Not applicable.



The ActivityDragEventArgs that contains the event data.

Exception typeCondition


e contains a null reference (Nothing in Visual Basic).

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0