or
<Trigger Property="TabStripPlacement" Value="Bottom"> <Setter Property="telerik:RadDockPanel.Dock" Value="Bottom" TargetName="HeaderDockedElement" /> <Setter Property="LayoutTransform" TargetName="HeaderDockedElement"> <Setter.Value> <RotateTransform Angle="180" /> </Setter.Value> </Setter> <Setter Property="BorderThickness" Value="1 1 1 0" /> </Trigger>