The TreeListView have 3 sorting state(Ascending, Descending, No Sort). For now when I clicked 3-rd time in column header it takes to "No Sort" state. But I need to use only first two states, no need to have "No Sort" state at all.
You should implement your own logic in Sorting event of the RadTreeListView.
Attached is a sample project that demonstrates this approach.
All the best,
Vanya Pavlova
the Telerik team
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