TreeListView.CheckAllNodes() Method
Checks all nodes.
Namespace: DevExpress.Xpf.Grid
Assembly: DevExpress.Xpf.Grid.v18.2.dll
Declaration
Remarks
Nodes can display check boxes allowing an end-user to check/uncheck individual nodes. To display check boxes, set the TreeListView.ShowCheckboxes property to true.
To learn more, see Checking Nodes.
See Also