public static void UpdateSubscriber(AnnouncementsSubscriberInfo subscriber)
 {
     using (IDataContext context = DataContext.Instance())
     {
         var repository = context.GetRepository <AnnouncementsSubscriberInfo>();
         repository.Update(subscriber);
     }
 }
        public static void AddSubscriber(AnnouncementsSubscriberInfo subscriber)
        {
            using (IDataContext context = DataContext.Instance())
            {
                var repository = context.GetRepository<AnnouncementsSubscriberInfo>();

                repository.Insert(subscriber);
            }
        }