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ASPxTreeList.NodeCollapsing Event

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ASPxTreeList.NodeCollapsing Event

Fires before a node is collapsed.

Namespace : DevExpress.Web.ASPxTreeList

Assembly : DevExpress.Web.ASPxTreeList.v25.2.dll

NuGet Package : DevExpress.Web

Declaration

csharp
public event TreeListNodeCancelEventHandler NodeCollapsing
vb
Public Event NodeCollapsing As TreeListNodeCancelEventHandler

Event Data

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

PropertyDescription
CancelGets or sets whether the operation performed on the processed node should be cancelled.
NodeGets the node currently being processed. Inherited from TreeListNodeEventArgs.

Remarks

Handle the NodeCollapsing event to specify whether the node is allowed to be collapsed. To cancel this action, set the event parameter’s cancel property to true.

To learn more, see Expanding and Collapsing Nodes.

See Also

NodeExpanding

Expand and Collapse Nodes

Tree List

ASPxTreeList Class

ASPxTreeList Members

DevExpress.Web.ASPxTreeList Namespace