public ActionResult NewCity(CityViewModel model) { if (ModelState.IsValid) { //创建数据 City data = new City(); data.Name = model.Name; data.CountryName = model.CountryName; data.ProvinceName = model.ProvinceName; data.Remark = model.Remark ?? string.Empty; //保存数据 string strErrText; DDSystem city = new DDSystem(); if (city.InsertCity(data, LoginAccountId, LoginStaffName, out strErrText)) { return Json(string.Empty); } else { return Json(strErrText); } } return View(model); }