If you navigate to the Telerik controls for Silverlight installation folder, you will find a Themes
folder. It contains the Themes
solution where all telerik built-in theme projects are contained. Open this solution and navigate to the OfficeBlack->Themes->Office->Black->Button.xaml
file. It contains the default style for the RadDropDownButton
and its elements.
I also attached a sample project that contains the default ControlTemplate
of the RadDropDownButton
control. I hope it will get you started on your task.
All the best,
the Telerik team
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