control can definitely be customized to meet your requirements. Even though you cannot have one children collection derive from two parent RadTreeViewItem
nodes at the same time, you can define one RadTreeViewItem
to contain multiple RadTreeViewItems
hosted in an inner RadTreeView
I attached a sample solution demonstrating such an approach. Please have a look at it and let me know if it works for you or if you have any questions.
the Telerik team
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