后台WebFormPaging.aspx.cs代码如下：

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;

 //zhzuo 2004-9-10

namespace AspnetPaging

{

     public class WebForm1 : System.Web.UI.Page

     {

         private int recordCount = 0;

         protected System.Web.UI.WebControls.DataGrid DataGrid1;

         private void Page_Load(object sender, System.EventArgs e)

         {

              if(!Page.IsPostBack)

              {

                   DataGridDataBind();

              }

         }

         //绑定数据

         private void DataGridDataBind()

         {

              DataSet ds = DataAccess.GetCustomersData();

              this.DataGrid1.DataSource = ds;

              this.DataGrid1.DataBind();

         }

         #region Web 窗体设计器生成的代码

         override protected void OnInit(EventArgs e)

         {

              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.DataGrid1.ItemCreated += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemCreated);

              this.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);

              this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);

              this.Load += new System.EventHandler(this.Page_Load);

         }

         #endregion

         //翻页

         private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)

         {

              DataGrid1.CurrentPageIndex = e.NewPageIndex;

              DataGridDataBind();

         }

         //获取当前项

         protected int GetRecordIndex(int itemIndex)

         {

              return (DataGrid1.CurrentPageIndex * DataGrid1.PageSize + itemIndex + 1);

         }

                   private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)

         {

              DataGrid dg = (DataGrid)sender;

              if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

              {

                   e.Item.Cells[0].Text = (dg.CurrentPageIndex * dg.PageSize + e.Item.ItemIndex + 1).ToString();

                   e.Item.Cells[1].Text = (dg.CurrentPageIndex * dg.PageSize + e.Item.ItemIndex + 1).ToString();

              }

         }

         private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)

         {

              DataGrid dg = (DataGrid)sender;

              if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

              {

                   ((Label)e.Item.FindControl("itemIndex")).Text = (dg.CurrentPageIndex * dg.PageSize + e.Item.ItemIndex + 1).ToString();

              }

         }

     }

}

 

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