public JsonResult ProductTracking(string term) { try { var items = RepairManager.GetByTracking(term.Trim()); if (items == null) { return(Json(new { result = "ไม่พบข้อมูล/not found." }, JsonRequestBehavior.AllowGet)); } else { TrackingCounterManager.IncreaseNextItemNo(); return(Json(new { result = items.vProductTracking }, JsonRequestBehavior.AllowGet)); } } catch (Exception ex) { return(Json(new { result = "ไม่พบข้อมูล/not found." }, JsonRequestBehavior.AllowGet)); } }