/// 发送消息

         ///</summary>

        ///<param name="sendUserId"></param>

        ///<param name="toUser">格式7FFA3AF2-E74B-4174-8403-5010C53E49A7|userName,7FFA3AF2-E74B-4174-8403-5010C53E49A7|userName</param>

        ///<param name="content"></param>

        ///<param name="sendedStatus">表示已送</param>

        ///<returns></returns>

        publicstaticint sendMessage(string sendUserId, string toUser, string content, string sendedStatus)

        {          

            int receiveCount =0;

            TransactionOptions transactionOption =new TransactionOptions();

            //设置事务隔离级别

            transactionOption.IsolationLevel = System.Transactions.IsolationLevel.ReadCommitted;

            // 设置事务超时时间为60秒

            transactionOption.Timeout =new TimeSpan(0, 0, 60);

            using (TransactionScope scope =new TransactionScope(TransactionScopeOption.Required, transactionOption))

            {

                try

                {

                    //在这里实现事务性工作

     //发送消息

                    insertMessage(sendUserId, toUser, content, sendedStatus);

     //在接收信息表中插入记录

                    receiveCount += insertReceiveMessage(userids[0], sendUserId, content, "0");

                  

                    // 没有错误,提交事务

                    scope.Complete();

                }

                catch (Exception ex) {

                    thrownew Exception("发送信息异常,原因:"+ex.Message);

                }finally{

                    //释放资源

                    scope.Dispose();

                  }                              

            }

            return receiveCount;

        }