关于异步的问题

   private static void ForumThreadsMostRecentUpdate(ForumPost post)
        {
            ForumsDataProvider.Instance().ForumThreadsMostRecentUpdate(post);
        }

        private delegate void ForumThreadsMostRecentUpdateDelegate(ForumPost post);

        private static IAsyncResult BeginForumThreadsMostRecentUpdate(ForumPost post, AsyncCallback ac, Object state)
        {
            ForumThreadsMostRecentUpdateDelegate sender = new ForumThreadsMostRecentUpdateDelegate(ForumThreadsMostRecentUpdate);
            IAsyncResult result = sender.BeginInvoke (post, ac, state);
            return result;
        }


        public static void ForumThreadsMostRecentUpdateAsync(ForumPost post)
        {
            BeginForumThreadsMostRecentUpdate(post, null, null);
        }



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最后调用ForumThreadsMostRecentUpdateAsync，并没有执行到ForumsDataProvider.Instance().ForumThreadsMostRecentUpdate(post);
不知代码哪里有问题

补充：.NET技术 ,  ASP.NET