Adding checkable menu items

You can add checkable menu items too. The WPF menu item exposes two properties to handle this. The IsCheckable property tells the menu item that it can handle check/uncheck options. When IsCheckable is set to True, it sets to the check/uncheck icon on an alternate click of that menu item.

You can also programmatically check/uncheck a menu item. Set its IsChecked property to True or False. Make sure to set IsCheckable="True". Let's add the following menu item, under the Edit menu:

<MenuItem Header="Save _settings on exit" 
          IsCheckable="True" IsChecked="True" />