public JsonResult AddRoomToFavorite(string RoomID) { var user = Session[CDictionary.welcome] as CMember; SingleApartmentEntities db = new SingleApartmentEntities(); var result = "發生錯誤,請重新登入再試一次!"; if (user != null && int.TryParse(RoomID, out int roomID)) { CUser theUser = new CUser() { tMember = db.tMember.Where(r => r.fMemberId == user.fMemberId).FirstOrDefault() }; result = theUser.AddRoomToFavorite(roomID); } return(Json(JsonConvert.SerializeObject(new { ans = result }))); }