The value of StartingNodeOffset identifies the number of levels up or down the sitemap hierarchy from the starting node that is identified by the StartFromCurrentNode and StartingNodeUrl properties to offset the starting node of the subtree that is exposed by data source control.
If the valuie starting node is the node that represents the currently requested page, the StartingNodeOffset is ignored. If you have the control on your Master page and StartingNodeOffset is set to "1" . Thus when you are on a root page( item level = 0) you will not see the root page. You will see the chiild items in your RadTreeView.
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