asp.net mvc 事务处理：Transactions

using (TransactionScope sc = new TransactionScope())
            {
                try
                {
                    using (wcfDemoEntities db = new wcfDemoEntities())
                    {
                        user user2 = new user() {  UserName = name, PassWord = "1212",Discribe="fdsf",SubmitTime=DateTime.Now };
                        db.user.Add(user2);
                        db.SaveChanges();
                    }
                    sc.Complete();//放在catch上面，否则不能回滚
                }
                catch (Exception)
                {
                }
            }
            return "";