public ActionResult GetChange(int symbolId)
 {
     try
     {
          MarketPriceService service = new MarketPriceService();
     var open = service.GetFirstPriceOfDay(SessionManager.UserInfo.PartnerId, symbolId, DateTime.Now);
     var close = service.GetLastPriceOfDay(SessionManager.UserInfo.PartnerId, symbolId, DateTime.Now.AddDays(-1));
     var data= new {
         OpenPrice = open!= null?open.CurrBuyPrice:0,
         ClosePrice =close!= null?close.CurrBuyPrice:0
     };
     return Json(data);
     }
     catch (Exception ex)
     {
          var data= new {
          Exception = ex.Message + ex.StackTrace + ex.InnerException,
         OpenPrice =0,
         ClosePrice =0
     };
          return Json(data);
     }
     return Json(true);
 }