微软企业库 5 启用事务回滚

            SqlDatabase db = new SqlDatabase(@"server=.\sql2008;uid=sa;pwd=123456;database=DBTEST");

            using (DbConnection connection = db.CreateConnection())
            {
                //打开链接
                connection.Open();
                //创建事务
                DbTransaction Tran = connection.BeginTransaction();
                try
                {

                    db.ExecuteNonQuery(Tran, CommandType.Text, "Insert Into TLog (DEC) Values('123')");
                    db.ExecuteNonQuery(Tran, CommandType.Text, "Insert Into TLog (DEC) Values('124')");
                    db.ExecuteNonQuery(Tran, CommandType.Text, "Insert Into TLog (DEC) Values(125)");
                    //提交事务
                    Tran.Commit();
                }
                catch (Exception Ex)
                {
                    //出错回滚
                    Tran.Rollback();
                    Console.WriteLine(Ex.ToString());
                }
                finally
                {
                    //关闭连接
                    connection.Close();
                }

                Console.WriteLine("OK");
                Console.ReadKey();
            }

不要忘记在执行时加入“Tran”，否则不起做用的