public static List <trainingrpt01> GetRPT01Info(string type, string sdate, string edate) { listTrainingrpt01s.Clear(); wcf.parti.Service1 _parti = new wcf.parti.Service1(); partiDB.RootObject rootObject = new partiDB.RootObject(); if (listTrainingrpt01s.Count == 0) { string json_str = _parti.GetTrainingRPT01(type, sdate, edate); if (json_str == "e0")//code error { MessageBox.swalModal(_Page, "error", "e0:ລະບົບຂັດຂ້ອງຕິດຕໍ່ຜູ້ເບີ່ງແຍ່ງດ່ວນ.", ""); } else if (json_str == "e1")//no data found { MessageBox.swalModal(_Page, "info", "e1:ບໍ່ມີຂໍ້ມູນທີ່ຈະສະແດງ.", ""); } else if (json_str == "e2")//can't connect database { MessageBox.swalModal(_Page, "warning", "e2:ບໍ່ສາມາດເຊື່ອມຕໍ່ຖານຂໍ້ມູນໄດ້.", ""); } else { rootObject = JsonConvert.DeserializeObject <partiDB.RootObject>(json_str); foreach (var vl in rootObject.trainingrpt01) { listTrainingrpt01s.Add(new trainingrpt01(vl.course_id, vl.course_name, vl.training_id, vl.title, vl.total_trainee, vl.date_range, vl.organizer, vl.total_event, vl.training_address, vl.total_trainee_fmale)); } } } return(listTrainingrpt01s); }