asp.net从数据库获取下拉框的值

  比如下拉框显示User表得到值

           IUserBll userbll = new UserBll();

            List<User> userlist = userbll.Search(x => 1 == 1);
            seletlist = new SelectList(userlist, "ID", "Name");
            ViewData["userlist"] = seletlist;