protected virtual AddEditContextMenuStrip CreateUserContextMenu(string add_caption, string edit_caption, string remove_caption, bool is_addb_disabled)
        {
            AddEditContextMenuStrip res = new AddEditContextMenuStrip(is_addb_disabled);
            res.CreateAddMenuItem(add_caption, AddUserButtonClick);
            res.CreateEditMenuItem(edit_caption, EditUserButtonClick);
            res.CreateRemoveMenuItem(remove_caption, RemoveUserButtonClick);

            return res;
        }
        protected virtual AddEditContextMenuStrip CreateUserContextMenu(string add_caption, string edit_caption, string remove_caption, bool is_addb_disabled)
        {
            AddEditContextMenuStrip res = new AddEditContextMenuStrip(is_addb_disabled);

            res.CreateAddMenuItem(add_caption, AddUserButtonClick);
            res.CreateEditMenuItem(edit_caption, EditUserButtonClick);
            res.CreateRemoveMenuItem(remove_caption, RemoveUserButtonClick);

            return(res);
        }