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