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ASPxTreeList.NodeDeleting Event

Enables you to prevent a node from being deleted.

Namespace: DevExpress.Web.ASPxTreeList

Assembly: DevExpress.Web.ASPxTreeList.v22.2.dll

NuGet Package: DevExpress.Web


public event ASPxDataDeletingEventHandler NodeDeleting

Event Data

The NodeDeleting event's data class is ASPxDataDeletingEventArgs. The following properties provide information specific to this event:

Property Description
Cancel Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
Keys Gets a dictionary of field name/value pairs that represent the primary key of the row to delete.
Values Gets a dictionary of the non-key field name/value pairs for the row to delete.


The NodeDeleting event occurs when an end-user has clicked the Delete command button, or the ASPxTreeList.DeleteNode method has been called. To cancel the delete operation, set the event parameter’s Cancel property to true.

After a node has been deleted, the ASPxTreeList.NodeDeleted event is raised.

To learn more, see Adding and Deleting Nodes.

See Also