Disabling menuItems

You are almost aswering all of your questions yourself.

Ok, you must do event handler for menus. You can add Collapse event handler for menu itself, and then test if the menuitems are being selected.
Or you can do Click event handlers for each menuitems that must have special functionalities.

When you need to know if some menuitem if checked (you can check menuitems like checkboxes), just inspect menuitem.Checked property.
If you click some menuitem, sender object that is passed to the event handler tells you which menuitem was that raised the event. You can cast the sender object to MenuItem object and use its properties and methods normally.

Menu has collection which contains all the menuitems, that you can iterate through to get all the menuitems in the menu that are selected.


I can't offer you any code, because i haven't got development tools on this machine, and i don't remember all of C# by memory (Visual Studio has that kind of an effect sometimes;))