public async Task <JsonResult> Get_DanhSachNhanSu(string ma, string trungtam) { try { ma = !String.IsNullOrEmpty(ma) ? ma : ""; trungtam = !String.IsNullOrEmpty(trungtam) && trungtam != "null" ? trungtam : ""; var model = await Task.Run(() => db.APAX_DANHSACH_NHANSU(ma, trungtam).ToList()); return(Json(model, JsonRequestBehavior.AllowGet)); } catch (Exception ex) { return(Json(ex.ToString(), JsonRequestBehavior.AllowGet)); } }