public JsonResult LoadGenerateBusinessCarriersByTimespan(string startTime, string endTime) { string strErrText; DDSystem dd = new DDSystem(); List<Carrier> listCarrier = dd.LoadGenerateBusinessCarriersByTimespan(startTime, endTime, LoginAccountId, LoginStaffName, out strErrText); if (listCarrier == null) { throw new Exception(strErrText); } var ret = from c in listCarrier select c.Name; return Json(ret, JsonRequestBehavior.AllowGet); }