Thank you for your interest in our controls. Have you explored our RadTreeList control which is actually a kind of mixture of RadGridView and RadTreeView?
You can check its online Silverlight Demos (they are also included in our WPF demos) and its documentation here.
All the best,
the Telerik team
Sharpen your .NET Ninja skills
! Attend Q1 webinar week and get a chance to win a license! Book your seat now >>