Pass Element as CommandParameter from root of ElementTree

Question

I searched a lot through Google and StackOverflow, but nothing answered my problem.

I have two Xaml Files:

MainWindow.xaml

<Window x:Name="mainWindow">
    <Window.DataContext>
        <!-- Instantiate ViewModel of the MainWindow -->
        <vm:MainWindowViewModel x:Name="viewModel"/>
    </Window.DataContext>

    <!-- Create the Menu of the MainWindow -->
    <custom:MainMenu Grid.Row="0"/>

    <ad:DockingManager x:Name="dockingManager">
    <!-- ... -->
</Window>

And the MainMenu.xaml

<UserControl>
    <Menu>
        <MenuItem Header="{t:Translate MENU_LAYOUT_SAVE}" Command="{Binding SaveLayoutCommand}" CommandParameter="{Binding RelativeSource={RelativeSource AncestorType=Window}}"/>
        <MenuItem Header="{t:Translate MENU_LAYOUT_LOAD}" Command="{Binding LoadLayoutCommand}" CommandParameter="{Binding RelativeSource={RelativeSource AncestorType=Window}}"/>
    </Menu>
</UserControl>

And here my Problem occurs. Instead of passing the Mainwindow-object I want to pass the DockingManager x:Name="dockingManager" from MainWindow. But if i try to reference the object by its name it fails...

I tried the following Bindings:

CommandParameter="{Binding ElementName=dockingManager}"
CommandParameter="{Binding ElementName=dockingManager, RelativeSource={RelativeSource AncestorType=Window}}"

---

So how can I find and reference an Object (dockingManager) from the ElementTree within xaml. I want to avoid using extra code in Code-behind.

Answer 1

You can use:

CommandParameter="{x:Reference Name=yourElementName}"