public JsonResult Channel_edit(string id, string name, string memo)
        {
            Channel en = new Channel();
            en.id = Convert.ToInt32(id);
            en.name = name;
            en.memo = memo;

            DaChannel dal = new DaChannel();
            var result = new CustomJsonResult();
            result.Data = dal.update(en);
            return result;
        }