Custom menuitem

Question

I need to create a custom item menu object to add some addicional information, I want that the BaseMenu object creates MyMenuItem instances when I create the new items using the designer. Right now, I have a inherited class based on System.Windows.Forms.Menuitem, but I have to change the object declaration in order to use my class, after the items are created using the designer and I don't want to do it this way. Any suggestions? Thanks, Luis.