How to get the Selected Item in Context Menu
===

I have a context menu that has binding items and I want to set up a command and command parameter so I know which item was clicked on but I don't know how.

    <MenuItem Command="{Binding Sync}"   
      Header="Synchronize" 
      ItemsSource="{Binding ItemsToSync}">
      <MenuItem.Icon>
          <Image Height="25" Source="Sync.png" />
      </MenuItem.Icon>
    </MenuItem>