Hello Rene,
Can you please provide us with more information about your scenario? Do you use data-binding scenario? How are these controls coupled together? Do you have
RadTabItems inside
RadPanelBarItems or the other way around? Some pictures or sample project will be much appreciated.
Meanwhile please take a look at
this online demonstration project and let me know if you want something similar to it.
Kind regards,
Pavel R. Pavlov
the Telerik team