在GridView Web服務器控件中的分頁

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class PageTest : System.Web.UI.Page
{
    private DataView m_DataView;

    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        GridView1.DataSource = m_DataView;
        GridView1.DataBind();
    }
    protected void RadioButton1_CheckedChanged(object sender, EventArgs e)
    {
        GridView1.PagerSettings.Mode = PagerButtons.Numeric;
        GridView1.DataSource = m_DataView;
        GridView1.DataBind();
    }
    protected void RadioButton2_CheckedChanged(object sender, EventArgs e)
    {
        GridView1.PagerSettings.Mode = PagerButtons.NextPrevious;
        GridView1.DataSource = m_DataView;
        GridView1.DataBind();
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        //連接字符串
        String sqlconn = "Data Source=YF616062\\SQLEXPRESS;Initial Catalog=SuperMarket;User ID=sa;Password=123456";
        //String sqlconn = @"Data Source=.\SQLEXPRESS;AttachDbFilename= C:\Documents and Settings\Administrator\桌面\數據庫文件\supermarket數據庫文件\SuperMarket.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True";
        
        SqlConnection myConnection = new SqlConnection(sqlconn);

        //打開數據庫連接
        myConnection.Open();
        SqlCommand myCommand = new SqlCommand("select * from Product", myConnection);
        SqlDataAdapter Adapter = new SqlDataAdapter();

        Adapter.SelectCommand = myCommand;
        DataSet myDs = new DataSet();
        Adapter.Fill(myDs);
        m_DataView = myDs.Tables[0].DefaultView;

        //關閉與數據庫的連接
        myConnection.Close();

        RadioButton1.Checked = true;
        GridView1.DataSource = m_DataView;
        GridView1.DataBind();
    }
    protected void Page_Load(object sender, EventArgs e)
    {

    }
}