public HttpResponseBase SaveNoteOrder()
 {
     string json = string.Empty;
     OrderShowMasterQuery query = new OrderShowMasterQuery();
     try
     {
         if (!string.IsNullOrEmpty(Request.Params["order_id"]))
         {
             query.order_id = Convert.ToUInt32(Request.Params["order_id"]);
         }
         if (!string.IsNullOrEmpty(Request.Params["note_order"]))
         {
             query.note_order = Request.Params["note_order"];
         }
         query.user_id = query.user_id = uint.Parse((System.Web.HttpContext.Current.Session["caller"] as Caller).user_id.ToString());
         query.NoteOrderModifyTime = DateTime.Now;
         _orderMasterMgr = new OrderMasterMgr(mySqlConnectionString);
         _orderMasterMgr.SaveNoteOrder(query);
         json = "{success:true}";
     }
     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:false}";
     }
     this.Response.Clear();
     this.Response.Write(json);
     this.Response.End();
     return this.Response;
 }