DataGridView 如何显示数据

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data.OleDb;

SqlConnection thisConnection = new SqlConnection(myclass.cnGlobag);
string sqlString = "select * from AccountMsg";
myDataAdapter = new SqlDataAdapter(sqlString,thisConnection);
SqlCommandBuilder cb = new SqlCommandBuilder(myDataAdapter);
dataSet1.Clear();
myDataAdapter.Fill(dataSet1, "AccountMsg");
dataGridView1.DataSource = dataSet1.Tables[0];
thisConnection.Close();