I can't really follow the train of events here. In general if I want to edit or add to a list or combo I would call a modal form from the form containing the listbox or combobox. do form with someval to somevar forces the user to complete the action before doing anything else. Then just repoplulate the list however you did it the first time. A more flexible approach would be to use an object reference and properties to keep track of values being passed between forms, or whatever.