MySqlDataReader dr = comm.ExecuteReader();
                while (dr.Read())
                {

                }


这里面怎么实现一行一行读出来  显示在MessageBox 里面  谢谢高手 写个具体点的 ··

            System.Data.SqlClient.SqlDataReader dr;
            //已省略dr的初始化代码
            string inf = "";
            while (dr.Read())
            {
                for (int i = 0; i < dr.FieldCount; i++) inf += dr[i].ToString() + "\t";
                inf += "\n";
            }
            dr.Close();
            MessageBox.Show(inf);