Bind Items to MenuItem -> use Command

Question

I have a MenuItem, which has a collection of items in it. It looks like the File -> Open Menuitem.

So:

• File
  • Open
    • Open from DataBase <

Answer 1

Try to change its ItemContainerStyle and then bind the command from ItemsSource item,

<MenuItem Header="From Database" ItemsSource="{Binding OCFragebogen}"
<MenuItem.ItemContainerStyle>
  <Style TargetType="MenuItem">
    <Setter Property="Command" Value="{Binding YourCommand}" />
  </Style>
</MenuItem.ItemContainerStyle>
</MenuItem>

I haven't tried if it works just a guess

edited answer

                <MenuItem Header="From Database" ItemsSource="{Binding OCFragebogen}">
                    <MenuItem.ItemContainerStyle>
                        <Style TargetType="MenuItem">
                            <Setter Property="Command" Value="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type MenuItem}}, Path=DataContext.YourCommand }" />
                            <Setter Property="CommandParameter" Value="{Binding RelativeSource={RelativeSource Self},  Path=Header}"/>
                        </Style>
                    </MenuItem.ItemContainerStyle>
                </MenuItem>

Answer 2

This should work for you

<MenuItem Header="From Database" 
          ItemsSource="{Binding YourItemSource}">
    <MenuItem.ItemContainerStyle>
        <Style TargetType="MenuItem">
            <Setter Property="Command" Value="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=MenuItem}, Path=DataContext.YourCommandName}"></Setter>
            <Setter Property="CommandParameter" Value="{Binding}"></Setter>
         </Style>
     </MenuItem.ItemContainerStyle>
</MenuItem>