ASPxTreeList.NodeExpanding Event
In This Article
Fires before a node is expanded.
Namespace: DevExpress.Web.ASPxTreeList
Assembly: DevExpress.Web.ASPxTreeList.v24.2.dll
NuGet Package: DevExpress.Web
#Declaration
public event TreeListNodeCancelEventHandler NodeExpanding
#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 Tree |
#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