public void GetPrediction(string scheduleID, string goalNum)
 {
     try
     {
         NowGoalBLL bll = new NowGoalBLL();
         if (goalNum == null)
         {
             StringJSON = bll.GetPrediction(scheduleID);
         }
         else
         {
             StringJSON = bll.GetPrediction(scheduleID, float.Parse(goalNum));
         }
     }
     catch (Exception e)
     {
         System.Diagnostics.Debug.Write(e);
         throw;
     }
 }