在DataGrid中实现分页

    用过ASP的朋友也许对起分页感到头大，但在ASP。NET中其自动分页功能便让您能得心应手。这是前台代码：

后台代码如下：

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
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.Configuration;

namespace mynew
{
    /**//// <summary>
    /// WebForm1 的摘要说明。
    /// </summary>
    public class WebForm1 : System.Web.UI.Page
    {
        protected System.Web.UI.WebControls.LinkButton LinkButton1;
        protected System.Web.UI.WebControls.LinkButton LinkButton2;
        protected System.Web.UI.WebControls.LinkButton LinkButton3;
        protected System.Web.UI.WebControls.LinkButton LinkButton4;
        protected System.Web.UI.WebControls.Label lblCurrentIndex;
        protected System.Web.UI.WebControls.Label lblPageCount;        
        protected System.Web.UI.WebControls.DataGrid MyDataGrid;
    
        private void Page_Load(object sender, System.EventArgs e)
        {
            SqlConnection conn=new SqlConnection(ConfigurationSettings.AppSettings["dsn"]);
            conn.Open();
            SqlDataAdapter myAdapter=new SqlDataAdapter();
            myAdapter.SelectCommand=new SqlCommand("select CategoryID,CategoryName from Categories",conn);
//            myAdapter.SelectCommand.CommandType=CommandType.StoredProcedure;
            DataSet ds=new DataSet();
            myAdapter.Fill(ds,"Categories");
            MyDataGrid.DataSource=ds;
            MyDataGrid.DataBind();
            lblCurrentIndex.Text="第"+((Int32)MyDataGrid.CurrentPageIndex+1)+"页";
            lblPageCount.Text="/共"+MyDataGrid.PageCount+"页";
            conn.Close();

        }

        Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码
        override protected void OnInit(EventArgs e)
        {
            //
            // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
            //
            InitializeComponent();
            base.OnInit(e);
        }
        
        /**//// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {    
            this.LinkButton1.Click += new System.EventHandler(this.PagerButton_Click);
            this.LinkButton2.Click += new System.EventHandler(this.PagerButton_Click);
            this.LinkButton3.Click += new System.EventHandler(this.PagerButton_Click);
            this.LinkButton4.Click += new System.EventHandler(this.PagerButton_Click);
            this.Load += new System.EventHandler(this.Page_Load);

        }
        #endregion


        private void PagerButton_Click(object sender, System.EventArgs e)
        {
            string arg=((LinkButton)sender).CommandArgument; 
            //获取LinkButton的参数值
            switch(arg)
            {
                case ("next"):
                    if(MyDataGrid.CurrentPageIndex<(MyDataGrid.PageCount-1))
                        MyDataGrid.CurrentPageIndex++;
                    break;
                case("prev"):
                    if(MyDataGrid.CurrentPageIndex>0)
                        MyDataGrid.CurrentPageIndex--;
                    break;
                case("first"):
                    MyDataGrid.CurrentPageIndex=0;
                    break;
                case("last"):
                    MyDataGrid.CurrentPageIndex=MyDataGrid.PageCount-1;
                    break;
            }
            MyDataGrid.DataBind();
        }
    }
}

就怎么如次  easy 一个简单的分页便实现了。