public string Delete(int id)
 {
     if (UserTrackService.GetByID(id) != null)
     {
         UserTrackService.Remove(id);
         return("UserTrack Deleted Sucessfully");
     }
     else
     {
         return("UserTrack Not Found !");
     }
 }
        public string Cancel(int id)
        {
            try
            {
                int    UserID    = userTrackService.GetByID(id).UserID;
                string TrackName = userTrackService.GetByID(id).Track.Name;

                userTrackService.Remove(id);
                Hub.Clients.All.GetNotApproved(new { UserID, TrackName });

                return("Track Canceld Sucessfully");
            }
            catch (Exception e)
            {
                return("Error");
            }
        }