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V24.2

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

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TreeViewControl.NodeCollapsing Event

Occurs before a node is collapsed.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v24.2.dll

NuGet Package: DevExpress.Wpf.Grid.Core

#Declaration

public event TreeViewNodeAllowEventHandler NodeCollapsing

#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.

See Also