How to: Change the control's view in XAML
You can change the control’s view in XAML by declaring the required view type tag within the <dxn:NavBarControl.View> tag.
<!--...-->
<dxn:NavBarControl Name="navBarControl1">
<dxn:NavBarControl.View>
<dxn:NavigationPaneView ActiveGroupMinHeight="200"/>
</dxn:NavBarControl.View>
<!-...-->
</dxn:NavBarControl>