public HttpResponseBase MemberLevelList()
 {
     MemberLevelQuery query = new MemberLevelQuery();
     List<MemberLevelQuery> store = new List<MemberLevelQuery>();
     string json = string.Empty;
     int totalCount = 0;
     try
     {
         query.Start = Convert.ToInt32(Request.Params["start"] ?? "0");
         query.Limit = Convert.ToInt32(Request.Params["limit"] ?? "25");
         if (!string.IsNullOrEmpty(Request.Params["code_name"]))
         {
             query.code_name = Request.Params["code_name"];
         }
         if (!string.IsNullOrEmpty(Request.Params["mem_status"]))
         {
             query.ml_status = Convert.ToSByte(Request.Params["mem_status"]);
         }
         _memberLevel = new MemberLevelMgr(mySqlConnectionString);
         store = _memberLevel.MemberLevelList(query, out totalCount);
         IsoDateTimeConverter timeConverter = new IsoDateTimeConverter();
         timeConverter.DateTimeFormat = "yyyy-MM-dd HH:mm:ss";
         json = "{success:true,totalCount:" + totalCount + ",data:" + JsonConvert.SerializeObject(store, Formatting.Indented, timeConverter) + "}";
     }
     catch (Exception ex)
     {
         Log4NetCustom.LogMessage logMessage = new Log4NetCustom.LogMessage();
         logMessage.Content = string.Format("TargetSite:{0},Source:{1},Message:{2}", ex.TargetSite.Name, ex.Source, ex.Message);
         logMessage.MethodName = System.Reflection.MethodBase.GetCurrentMethod().Name;
         log.Error(logMessage);
         json = "{success:true,totalCount:0,data:[]}";
     }
     this.Response.Clear();
     this.Response.Write(json);
     this.Response.End();
     return this.Response;
 }