asp.net 分页显示数据表的数据的代码

代码如下：

using System; 
using System.Collections; 
using System.Configuration; 
using System.Data; 
using System.Linq; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.HtmlControls; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Xml.Linq; 
using System.Drawing; 
namespace ShowData4 
{ 
public partial class _Default : System.Web.UI.Page 
{ 
protected void Page_Load(object sender, EventArgs e) 
{ 
GridView1.PageSize = 5; /*GridView控件在每页上显示的记录数目*/ 
if (GridView1.Rows.Count != 0) /*当记录数只显示一页时加载分页标签*/ 
{ 
Control table = GridView1.Controls[0]; 
int count = table.Controls.Count; 
table.Controls[count - 1].Visible = true; 
} 
} 
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e) 
{ 
if (e.Row.RowType == DataControlRowType.Pager) /*显示页导航控件的行*/ 
{ 
/*创建在网页上显示超链接的按钮*/ 
LinkButton Button_IndexFirst = new LinkButton(); 
LinkButton Button_IndexLast = new LinkButton(); 
LinkButton Button_IndexNext = new LinkButton(); 
LinkButton Button_IndexPrevious = new LinkButton(); 
/*添加超链接按钮到页导航行*/ 
e.Row.Controls[0].Controls.Add(Button_IndexFirst); 
e.Row.Controls[0].Controls.Add(new LiteralControl(("  "))); /*分页按钮之间用2个空格隔开*/ 
e.Row.Controls[0].Controls.Add(Button_IndexPrevious); 
e.Row.Controls[0].Controls.Add(new LiteralControl(("  "))); 
e.Row.Controls[0].Controls.Add(Button_IndexNext); 
e.Row.Controls[0].Controls.Add(new LiteralControl(("  "))); 
e.Row.Controls[0].Controls.Add(Button_IndexLast); 
Button_IndexFirst.Text = "第一页"; 
Button_IndexFirst.CommandName = "first"; 
Button_IndexFirst.Click += new EventHandler(PageButtonClick); 
Button_IndexPrevious.Text = "上一页"; 
Button_IndexPrevious.CommandName = "previous"; 
Button_IndexPrevious.Click += new EventHandler(PageButtonClick); 
Button_IndexNext.Text = "下一页"; 
Button_IndexNext.CommandName = "next"; 
Button_IndexNext.Click += new EventHandler(PageButtonClick); 
Button_IndexLast.Text = "最后一页"; 
Button_IndexLast.CommandName = "last"; 
Button_IndexLast.Click += new EventHandler(PageButtonClick); 
if (GridView1.PageIndex == 0) 
{ 
if (GridView1.PageCount > 1) /*记录数所需页数大于一页*/ 
{ 
Button_IndexFirst.Enabled = false; 
Button_IndexPrevious.Enabled = false; 
} 
else /*记录数只需一页*/ 
{ 
Button_IndexFirst.Enabled = false; 
Button_IndexPrevious.Enabled = false; 
Button_IndexNext.Enabled = false; 
Button_IndexLast.Enabled = false; 
} 
} 
else if (GridView1.PageIndex == GridView1.PageCount - 1) 
{ 
Button_IndexNext.Enabled = false; 
Button_IndexLast.Enabled = false; 
} 
else if (GridView1.PageCount <= 0) 
{ 
Response.Write("数据表中没有数据！"); 
Button_IndexFirst.Enabled = false; 
Button_IndexPrevious.Enabled = false; 
Button_IndexNext.Enabled = false; 
Button_IndexLast.Enabled = false; 
} 
} 
} 
protected void PageButtonClick(object sender, EventArgs e) 
{ 
LinkButton clickedButton = ((LinkButton)sender); 
if (clickedButton.CommandName == "first") /*点击的是“第一页”按钮，页索引为0*/ 
{ 
GridView1.PageIndex = 0; 
} 
else if (clickedButton.CommandName == "next") /*点击的是“下一页”按钮，页索引加1*/ 
{ 
if (GridView1.PageIndex < GridView1.PageCount - 1) 
{ 
GridView1.PageIndex += 1; 
} 
} 
else if (clickedButton.CommandName == "previous") /*点击的是“上一页”按钮，页索引如果大于等于1则减1*/ 
{ 
if (GridView1.PageIndex >= 1) 
{ 
GridView1.PageIndex -= 1; 
} 
} 
else if (clickedButton.CommandName == "last") /*点击的是“最后一页”按钮*/ 
{ 
GridView1.PageIndex = GridView1.PageCount - 1; 
} 
} 
} 
}