public ICustomSubMenu InsertSubMenu(int position, string itemText)
        {
            ICustomSubMenu menuItem = ControlFactory.Instance.GetCustomSubMenu();

            menuItem.Text = itemText;

            DropDownItems.Insert(position, (ToolStripItem)menuItem);

            return(menuItem);
        }
        public ICustomSubMenu AddSubMenu(string itemText)
        {
            ICustomSubMenu menuItem = ControlFactory.Instance.GetCustomSubMenu();

            menuItem.Text = itemText;

            DropDownItems.Add((ToolStripItem)menuItem);

            return(menuItem);
        }