In the TabControl Databinding example, the TabControl ItemTemplate contains Button controls that has to be replaced with RadButtons.
The scroll buttons are not correctly displayed when the TabStripPlacement is set to Right and there is no default selection (the IsDefaultItemSelected is set to False). As a workaround set the RadTabControl's IsDefaultItemSelected property to True or select a RadTabItem manually through its IsSelected property.
When the RadTabControl is placed in a RadBusyIndicator, one of the navigation repeat buttons is initially disabled.
As a workaround, you can invoke the ScrollToHorizontalOffset method of the ScrollViewer inside the RadTabControl in a Dispatcher in the Loaded event: