I have a WPF application that needs to have a base page. Layered on top of that is the navigation controls, and layered on top of that would be additional controls.

MainWindow
-BasePage
-NavigationLayer
-AdditionNavLayer

Eventually there will be many more layers as there are more tools added.

This is not working:

<Grid>
        <Frame Content="{Binding CurrentView}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>
        <Frame>
            <layers:NavigationLayer VerticalAlignment="Bottom"
                                    HorizontalAlignment="Stretch" />
        </Frame>
    </Grid>