C# datagridView数据插入

private void button1_Click(object sender, EventArgs e)
        {
            DataSet ds = new DataSet();
            DataTable dt = new DataTable();
            ds.Tables.Add(dt);
            dt.Columns.Add("name");             //添加类标题
            dt.Columns.Add("sex");
            dt.Columns.Add("address");

            DataRow dr = dt.NewRow();
            dr["name"] = "dsads";
            dr["sex"] = "12312";
            dr["address"] = "32132";
            dt.Rows.Add(dr);                //添加行信息
            dt.Rows.Add(dr[0]);
            dt.Rows.Add(dr[0]);
            dt.Rows.Add(dr[0]);

            dataGridView1.DataSource = ds.Tables[0];
        }