原代码
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class DataSet : System.Web.UI.Page
{
    private static String C;
  protected void Page_Load(object sender, System.EventArgs e)
  {
  if(!Page.IsPostBack)
  {
    CreateDataSetObject();
  }
  }
  private void CreateDataSetObject()
  {
  SqlConnection myConnection = new SqlConnection(ConnectionString);
  String cmdText = "Select top 8 *  from tb_Student";
  SqlCommand myCommand = new SqlCommand(cmdText,myConnection);
  myConnection.Open();
  DataTable table = new DataTable("Employees");
  table.Columns.Add("Index");
  table.Columns.Add("Name");
            //table.Columns.Add("Address");
            //table.Columns.Add("Telephone");
  SqlDataReader recm = myCommand.ExecuteReader();
  int index = 0;
  while(recm.Read())
  {
    DataRow row = table.NewRow();
    row["Index"] = (++index).ToString();
    row["Name"] = recm["Name"].ToString();
                //row["Address"] = recm["Address"].ToString();
                //row["Telephone"] = recm["Telephone"].ToString();
    table.Rows.Add(row);
  }
  recm.Close();
  myConnection.Close();
  ///修正书中代码(Page97)
  DataSet ds = new DataSet("Table");
  ds.Tables.Add(table);
  myDataGrid.DataSource = ds;    //设定控件的数据源并绑定控件的数据
  myDataGrid.DataBind();
  }
}