如何将所选上下文菜单项的索引传递给绑定命令？

Question

How could i bind all context menu items to one single command, which gets the index of the menu item called? I have a WPF/MVVM project.

<ContextMenu x:Key="cm" ItemsSource="{Binding ActionItems}" 
DisplayMemberPath="ActionDescription">    
</ContextMenu>

Answer 1

Your should pass it as a CommandParameter :

<ContextMenu x:Key="cm" ItemsSource="{Binding ActionItems}" DisplayMemberPath="ActionDescription"
Command="{Binding YourCommand}" CommandParameter="{Binding YourParameter}">
...
</ContextMenu>  

Updated you need the solution described here: MVVM binding command to contextmenu item

Updated after comments

relapse - than you should implement it as shown here: WPF ContextMenu with ItemsSource - how to bind to Command in each item? . Please notice that link is a duplication of other question. So read the both please.