I built a dynamic tree structure on my web page and this tree has different asp.net and telerik controls (radtextbox checkbox, label..etc) as nodes.
I've just answered your support ticket regarding the same problem. Please find below my answer:
Could you please try the attached project at your side? If it works - could you please modify it so I can see the problem locally?
I noticed the version you use is 2011.3.1115.35, did you try our the latest version - 2012.2.724?".
To avoid duplication, please let us continue our communication in a single thread.
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.