public HttpResponseBase Getfreight()
 {
     string json = string.Empty;
     Aseld q = new Aseld();
     string fre;
     try
     {
         _iasdMgr = new AseldMgr(mySqlConnectionString);
         if (!String.IsNullOrEmpty(Request.Params["number"]))//如果是新增
         {
             q.ord_id = Convert.ToInt32(Request.Params["number"]);
         }
         fre = _iasdMgr.Getfreight(q.ord_id.ToString());
         if (!string.IsNullOrEmpty(fre))
         {
             fre = fre.Substring(0, 1);
         }
         json = "{success:true,fre:'" + fre + "'}";//返回json數據
     }
     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;
 }