ASPxTreeList.NodeExpanding Event
Fires before a node is expanded.
Namespace: DevExpress.Web.ASPxTreeList
Assembly: DevExpress.Web.ASPxTreeList.v21.2.dll
NuGet Package: DevExpress.Web
Declaration
Event Data
The NodeExpanding event's data class is TreeListNodeCancelEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
Cancel | Gets or sets whether the operation performed on the processed node should be cancelled. |
Node | Gets the node currently being processed. Inherited from TreeListNodeEventArgs. |
Remarks
Handle the NodeExpanding event to specify whether the node is allowed to be expanded. To cancel this action, set the event parameter’s cancel property to true.
To learn more, see Expanding and Collapsing Nodes.
See Also