千万级数据库分页与aspnetpager 的联合应用

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aspnetpager：其实只是起到用户界面的作用，记录了用户对页码的选择

并且传递给存储过程。如图：

//分页用到存储过程、不需要改变的存储过程

//只是以后要用到的

Create procedure jxytext_pagination@sqlstr nvarchar(4000), --查询字符串@currentpage int, --第N页@pagesize int --每页行数asset nocount ondeclare @P1 int, --P1是游标的id@rowcount intexec sp_cursoropen @P1 output,@sqlstr,@scrollopt=1,@ccopt=1,@rowcount=@rowcount outputselect ceiling(1.0*@rowcount/@pagesize) as TotalPages,@rowcount as TotalRows,@currentpage as CurPage set @currentpage=(@currentpage-1)*@pagesize+1exec sp_cursorfetch @P1,16,@currentpage,@pagesize exec sp_cursorclose @P1set nocount offGO

//真正要用到的存储过程

create procedure Pr_jxytest3(@sql varchar(1000) ,@indexpage int,@pagesize int)ASbeginexec jxytext_pagination @sql,@indexpage,@pagesizeendGO

//aspp.net页面

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 DAL;using System.Data.SqlClient;public partial class Default6 : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {        bangding();    }    public void bangding()    {        string sql = "select * from room";        //以下是参数，有两个是靠AspNetPager1传给par的        //真正的参数只有sql,也正是用户所用到的查询字符串        SqlParameter[] par = new SqlParameter[3];        par[0] = new SqlParameter("@sql", SqlDbType.VarChar);        par[0].Value=sql;        par[1] = new SqlParameter("@indexpage", SqlDbType.Int);        par[1].Value = this.AspNetPager1.CurrentPageIndex;        par[2] = new SqlParameter("@pagesize", SqlDbType.Int);        par[2].Value = this.AspNetPager1.PageSize;        DataSet Ds = SqlHelper.ExecuteDataset(SqlHelper.CONNECTION_STRING, CommandType.StoredProcedure, "Pr_jxytest3",par);        //绑定的地方Tables[2]是记录集        //Tables[1]是记录信息        this.GridView1.DataSource = Ds.Tables[2];        this.GridView1.DataBind();        //下面这一句是为分页控件付总的记录条数        this.AspNetPager1.RecordCount =Convert.ToInt32(Ds.Tables[1].Rows[0][1]);    }    protected void AspNetPager1_PageChanged(object sender, EventArgs e)    {        bangding();    }}

//前台页面

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default6.aspx.cs" Inherits="Default6" %><%@ Register Assembly="AspNetPager" Namespace="Wuqi.Webdiyer" TagPrefix="webdiyer" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server">    <title>无标题页</title></head><body>    <form id="form1" runat="server">        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">            <Columns>                <asp:BoundField DataField="roomname" HeaderText="房源名称" />            </Columns>        </asp:GridView>        <webdiyer:aspnetpager id="AspNetPager1" runat="server" onpagechanged="AspNetPager1_PageChanged"            pagesize="5" urlpaging="True"></webdiyer:aspnetpager>    </form></body></html>
到此已经实现了分页，效率很高的

千万级数据库分页 与aspnetpager 的联合应用

千万级数据库分页与aspnetpager 的联合应用