实事上，一个错误的理解就是Complete（）方法是提交事务的，这是错误的，事实上，它的作用的表示本事务完成，它一般放在try{}的结尾处，不用判断前台操作是否成功，如果不成功，它会自己回滚。

  #region 事务问题

            using (TransactionScope trans = new TransactionScope())

            {

                try

                {

                    InsertUserBase(); //它插入不成功，自己回滚

                    UserInfos userInfo = new UserInfos

                    {

                        UserID = "1",

                        RealName = "zzl",

                    };

                    db.UserInfos.InsertOnSubmit(userInfo);

                    db.SubmitChanges();

                    trans.Complete();

                }

                catch (Exception)

                {

                    // throw;

                }

                finally

                {

                    trans.Dispose();

                }

            }

            #endregion

 

  static bool InsertUserBase()

        {

            bool flag;

            try

            {

                UserBases userbase = new UserBases

                {

                    UserID = "0005",

                    Name = "zzl",

                    CreateDate = DateTime.Now,

                    UpdateDate = DateTime.Now,

                };

                db.UserBases.InsertOnSubmit(userbase);

                db.SubmitChanges();

                flag = true;

            }

            catch (Exception)

            {

                throw;

            }

            return flag;

        }

InsertUserBase()只要出现异常，程序将自己回滚