讀取mysql程式碼片段

讀取mysql 

this.tmr.Enabled = false;
            if (conn != null)
                conn.Close();

            string connStr = String.Format("server={0};user id={1}; password={2}; 

database=test; pooling=false",
                "localhost", "root", "root");

            try
            {
                conn = new MySqlConnection(connStr);
                conn.Open();

            }
            catch (MySqlException ex)
            {
                MessageBox.Show("Error connecting to the server: " + ex.Message);
            }

            //  data = new DataTable();

            //da = new MySqlDataAdapter("SELECT * FROM user" ,conn);
            //cb = new MySqlCommandBuilder(da);

            //da.Fill(data);

            //dataGrid.DataSource = data;

            //conn.Close();
            MySqlCommand mycmd = new MySqlCommand("select * from user", conn);
            MySqlDataReader myreader = mycmd.ExecuteReader();
            while (myreader.Read())
            {
                if (myreader.HasRows)
                {
                    Console.WriteLine(myreader.GetString("id"));
                    //Response.Write(myreader.GetString("email")+"br/");
                }
            }
            myreader.Close();
            conn.Close();