创建表
create table tb2(
id int identity(1,1),
title nvarchar(20),
content nvarchar(20),
primary key(id)
)
添加50万条记录或更多(建议每次最多50万条,除非你的服务器配置很好)
declare @i int
set @i=1
while @i<=500000
begin
insert into tb2(title,content)values(’fcx写的分页控件’,’请您试用!!!’)
set @i=@i+1
end
GO
1.aspx
<%@ Page language="c#" Codebehind="1.aspx.cs" AutoEventWireup="false" Inherits="fcx3._1" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>快速分页</title>
</HEAD>
<body MS_POSITIONING="GridLayout">
<asp:DataGrid id="FastPage" runat="server" Width="584px" Height="208px" AutoGenerateColumns="False" ShowHeader="True" ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center">
<Columns>
<asp:TemplateColumn HeaderText="ID">
<ItemTemplate>
<%#DataBinder.Eval(Container.DataItem,"id")%>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="TITLE">
<ItemTemplate>
<%#DataBinder.Eval(Container.DataItem,"title")%>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="CONTENT">
<ItemTemplate>
<%#DataBinder.Eval(Container.DataItem,"content")%>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
<asp:Label id="ThisPageNo" runat="server"></asp:Label>
<asp:HyperLink id="FirstPage" runat="server">首页</asp:HyperLink>
<asp:HyperLink id="PrePage" runat="server">上一页</asp:HyperLink>
<asp:HyperLink id="NextPage" runat="server">下一页</asp:HyperLink>
<asp:HyperLink id="LastPage" runat="server">尾页</asp:HyperLink>
<input id="PageNo" type="text" style="width:45px;text-align:center"><input name="goto" onclick="javascript:if(PageNo.value!=’’){location.href=’1.aspx?PageNo=’+PageNo.value};" type="button" value="go">
<asp:Label id="StatLabel" runat="server"></asp:Label>
</body>
</HTML>
1.aspx.cs
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;
namespace fcx3
{
/// <summary>
/// _1 的摘要说明。
/// </summary>
public class _1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid FastPage;
protected System.Web.UI.WebControls.Label ThisPageNo;
protected System.Web.UI.WebControls.HyperLink FirstPage;
protected System.Web.UI.WebControls.HyperLink PrePage;
protected System.Web.UI.WebControls.HyperLink NextPage;
protected System.Web.UI.WebControls.HyperLink LastPage;
protected System.Web.UI.WebControls.Label StatLabel;
private string strconn="server=(local);database=test1;uid=sa;pwd=;";
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
//Response.Write(strconn.ToString());
show(strconn,"tb2","id",20);
}
private void show(string sqlstr,string TName,string indexstr,int PSize) //(sqlstr数据库连接字符,TName数据表名称,indexstr索引字段,PSize每页大小)
{
string TableName=TName;
SqlConnection conn=new SqlConnection(sqlstr.ToString());
conn.Open();
if (Cache["ts"]==null)
{
SqlCommand cmd=new SqlCommand("select count(*) as recordnum from "+TableName,conn);
SqlDataReader rd=cmd.ExecuteReader();
rd.Read();
Cache.Insert("ts",Convert.ToInt32(rd["recordnum"]),null,DateTime.Now.AddMinutes(1),TimeSpan.Zero);
rd.Close();
}
int TotalSize=(int)Cache["ts"];
int PageSize=PSize;
int PageCount=TotalSize/PageSize+OverPage(TotalSize,PageSize);
string PageNo="1";
if(this.Context.Request.QueryString["PageNo"]!=null){PageNo=this.Context.Request.QueryString["PageNo"].ToString();}
try
{
if(Convert.ToInt32(PageNo)>=1&&Convert.ToInt32(PageNo)<=PageCount)
{}
else
{
conn.Close();
this.Context.Response.End();
}
}
catch
{
conn.Close();
this.Context.Response.End();
}
ThisPageNo.Text="第"+PageNo+"页";
string PageName=this.Context.Request.CurrentExecutionFilePath;
StatLabel.Text="("+PageSize.ToString()+"条/页,共"+PageCount.ToString()+"页,"+TotalSize.ToString()+"条)";
if(Convert.ToInt32(PageNo)>1)
{
FirstPage.NavigateUrl=PageName+"?PageNo=1";
PrePage.NavigateUrl=PageName+"?PageNo="+Convert.ToString(Convert.ToInt32(PageNo)-1);
}
if(Convert.ToInt32(PageNo)<PageCount)
{
NextPage.NavigateUrl=PageName+"?PageNo="+Convert.ToString(Convert.ToInt32(PageNo)+1);
LastPage.NavigateUrl=PageName+"?PageNo="+PageCount.ToString();
}
string sql="select top "+PageSize.ToString()+" * from "+TableName+" where "+indexstr+" not in(select top "+Convert.ToString((Convert.ToInt32(PageNo)-1)*PageSize)+" "+indexstr+" from "+TableName+" order by "+indexstr+" desc) order by "+indexstr+" desc";
try
{
SqlDataAdapter sda=new SqlDataAdapter(sql,conn);
DataSet ds=new DataSet();
sda.Fill(ds);
FastPage.DataSource=ds;
FastPage.DataBind();
}
catch{}
conn.Close();
}
private int OverPage(int ts,int ps)
{
int page1=0;
if (ts%ps!=0){page1=1;}
return page1;
}
#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.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}