public string On(int houseid) { int userid = User.userid; using (shhouseEntities ent = new shhouseEntities()) { try { ObjectParameter state = new ObjectParameter("state", typeof(int)); ObjectParameter msg = new ObjectParameter("msg", typeof(string)); int i = ent.House_Rent_On_GR2018(userid, houseid, state, msg); return(JsonConvert.SerializeObject(new repmsg { state = (int)state.Value, msg = (string)msg.Value })); } catch (Exception e) { return(JsonConvert.SerializeObject(new repmsg { state = 0, msg = "提交失败" })); } } }