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 override void OnDragEnter(
	ActivityDragEventArgs e
)

ExceptionCondition
ArgumentNullException

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

.NET Framework

Supported in: 4, 3.5, 3.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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