public ActionResult isExist(string Name)
        {
            // 限定同網站的Ajax專用
            if (!Request.IsAjaxRequest())
            {
                ModelState.AddModelError("", "非 ajax 呼叫");
                //throw new Exception("非 ajax 呼叫");
            }

            using (tblScheduleRepository rep = new tblScheduleRepository())
            {
                bool isExist = rep.isExist(Name);
                return(Json(new { Exist = isExist }));
            }
        }