TreeViewControl.CollapseAllNodes() Method
Collapses all nodes.
Namespace: DevExpress.Xpf.Grid
Assembly: DevExpress.Xpf.Grid.v24.1.dll
NuGet Package: DevExpress.Wpf.Grid.Core
Declaration
Remarks
To collapse a node, use the CollapseNode method. To expand the specified node or all nodes, use the ExpandNode or ExpandAllNodes method, respectively.
See Also