Unfortunately this behavior is not supported out of the box. However, you can achieve your goal by editing the default template of the control. For your convenience I extracted and edited the default template of the RadBreadcrumb contrl in the attached project. In order to achieve the implemented behavior I set the IsEnabled="False"
to the ScrollViewer
placed inside the DropDownContent
of a RadSplitButton
", placed inside the ControlTemplate
Please take a look at the attached project and let me know if it works for you.
Pavel R. Pavlov
the Telerik team