function is returning values but are not displayed at front end

[OperationContract]
       [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json)]
       public object  GetStationList(string prefixText)
       {

           using (DatabaseScope dbScope = new DatabaseScope("XTPTenant"))
           {
               dbScope.Database.ConnectionString = System.Web.HttpContext.Current.Session["ConnectionString"].ToString();
               ILocationCriteria locationCriteria = wcfFactory.CreateObject<ILocationCriteria>();
               locationCriteria.TrainStationName = prefixText;
               List<ITrainStation> StationList = XTP.Business.ProductSearch.SearchTrainStations(locationCriteria);
               object[] resarr = new object[1];
               if (StationList != null && StationList.Count > 0)
               {
                   object[] namearr = new object[StationList.Count];
                   for (int i = 0; i < StationList.Count; i++)
                   {
                       namearr[i] = StationList[i].Name;//+ ", " + StationList[i].Code;
                       namearr[i] = namearr[i] + "<div style=display:none>" + BitSpark.EnumHelper.GetDescription(XTP.Data.General.StringSeparator)
                           + StationList[i].Name + BitSpark.EnumHelper.GetDescription(XTP.Data.General.StringSeparator)
                           + StationList[i].ID  + BitSpark.EnumHelper.GetDescription(XTP.Data.General.StringSeparator) + "</div>";
                   }
                   resarr[0] = namearr;
               }
               else
               {
                   object[] errarr = new object[1];
                   errarr[0] = "No matching Station found";
                   resarr[0] = errarr;
               }
              return resarr;
             //  return StationList;
               //}
           }
       }