TreeList.DragObjectOver Event

Enables you to control whether the dragged column header can be dropped at the current position.

Namespace: DevExpress.XtraTreeList

Assembly: DevExpress.XtraTreeList.v18.2.dll

Declaration

C#

public event DragObjectOverEventHandler DragObjectOver

VB.NET

Public Event DragObjectOver As DragObjectOverEventHandler

Event Data

The DragObjectOver event's data class is DevExpress.XtraTreeList.DragObjectOverEventArgs.

Remarks

The DragObjectOver event fires repeatedly when dragging a column header. This event enables you to prevent dropping the header at the current position.

Use the event’s DragObject and DropInfo parameters to identify the element being dragged and to obtain its current position. To prevent dropping, set the Valid property of DragObjectOverEventArgs.DropInfo to false.