TreeViewControl.NodeCollapsing Event

Occurs before a node is collapsed.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v20.2.dll

NuGet Packages: DevExpress.WindowsDesktop.Wpf.Grid.Core, DevExpress.Wpf.Grid.Core

Declaration

C#

public event TreeViewNodeAllowEventHandler NodeCollapsing

VB.NET

Public Event NodeCollapsing As TreeViewNodeAllowEventHandler

Event Data

The NodeCollapsing event's data class is DevExpress.Xpf.Grid.TreeList.TreeViewNodeAllowEventArgs.

Remarks

After a user collapses a node, the TreeViewControl raises the NodeCollapsed event.