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ASP.NET存储过程实现分页效果(三层架构)

2017年12月12日  | 移动技术网IT编程  | 我要评论

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本文实例为大家分享了asp.net存储过程实现分页的具体代码，供大家参考，具体内容如下

实现效果：
文本框内输入跳转的页数，点击go会跳转到该页

首先在项目下加入bll,dal,dataaccess,model类库
1、前台界面

<%@ page language="c#" autoeventwireup="true" codebehind="原始刷新分页.aspx.cs" inherits="分页.原始刷新分页" %>
<!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></title>
 <script src="js/jquery1.7.js" type="text/javascript"></script>
 <script type="text/javascript">
  $(function () {
   $('#txtpageindex').focus(function () {
    $(this).val("");
   })
  })
 </script>
</head>
<body>
 <form id="form1" runat="server">
 <div>
  <asp:gridview id="gridview1" runat="server" autogeneratecolumns="false">
   <columns>
    <asp:boundfield datafield="id" headertext="编号" />
    <asp:boundfield datafield="newstitle" headertext="新闻标题" />
    <asp:boundfield datafield="newscontent" headertext="新闻内容" />
    <asp:boundfield datafield="createtime" 
     dataformatstring="{0:yyyy-mm-dd hh:mm:ss}" headertext="创建时间" />
   </columns>
  </asp:gridview>
 </div>
 <div>
   <asp:linkbutton id="btnfirst" runat="server" onclick="btnfirst_click">第一页</asp:linkbutton>
  <asp:linkbutton
   id="btnpre" runat="server" onclick="btnpre_click">上一页</asp:linkbutton>
  <asp:linkbutton id="btnnext"
    runat="server" onclick="btnnext_click">下一页</asp:linkbutton>
  <asp:linkbutton id="btnlast" runat="server" onclick="btnlast_click">最后一页</asp:linkbutton><asp:textbox
     id="txtpageindex" runat="server"></asp:textbox>
  <asp:linkbutton id="linkbutton5" runat="server" onclick="linkbutton5_click">go</asp:linkbutton>
 </div>
 </form>
</body>
</html>

2、后台代码

using system;
using system.collections.generic;
using system.linq;
using system.web;
using system.web.ui;
using system.web.ui.webcontrols;
using system.data;
namespace 分页
{
 public partial class 原始刷新分页 : system.web.ui.page
 {
  int pagesize = 10;
  protected void page_load(object sender, eventargs e)
  {
   
   if (!ispostback)
   {
    viewstate["pageindex"] = 1;
    getlastpageindex();
    loaddata();
   }
  }

  private void getlastpageindex()
  {
   bll.t_news1 bnews = new bll.t_news1();
   int totalcount = bnews.getrecordcount("");
   if (totalcount % pagesize == 0)
   {
    viewstate["lastpageindex"] = totalcount / pagesize;
   }
   else { viewstate["lastpageindex"] = totalcount / pagesize+1; }
  
  }
  private void loaddata()
  {
   bll.t_news1 bnews = new bll.t_news1();
   datatable dt = bnews.getlistdatatable(pagesize,convert.toint32(viewstate["pageindex"]));
   this.gridview1.datasource = dt;
   this.gridview1.databind();
   
   }
  protected void btnfirst_click(object sender, eventargs e)
  {
   viewstate["pageindex"] = 1;
   loaddata();
  }
  protected void btnpre_click(object sender, eventargs e)
  {
   int pageindex = convert.toint32(viewstate["pageindex"]);
   if (pageindex > 1)
   {
    pageindex--;
    viewstate["pageindex"] = pageindex;
    loaddata();
   }


  }
  protected void btnnext_click(object sender, eventargs e)
  {
   int pageindex = convert.toint32(viewstate["pageindex"]);
   if (pageindex < convert.toint32(viewstate["lastpageindex"]))
   {
    pageindex++;
    viewstate["pageindex"] = pageindex;
    loaddata();
   }
  }
  protected void btnlast_click(object sender, eventargs e)
  {
    viewstate["pageindex"] = viewstate["lastpageindex"];
   loaddata();
  }
  
  protected void linkbutton5_click(object sender, eventargs e)
  {
   int result;
   if (int.tryparse(txtpageindex.text, out result) == true)
   {
    viewstate["pageindex"] = txtpageindex.text.trim();
    loaddata();
   }
   else { txtpageindex.text = "请输入合法的数字"; }
  }
 }
}

3、数据库存储过程

declare @pagesize int;
declare @pageindex int;
select * from (select row_number() over(order by id) as rownumber,* from t_news1)t
where rownumber>(@pageindex-1)*@pagesize and rownumber<=@pagesize*@pageindex

go 
create proc pro_fenye
@pagesize int,
@pageindex int

as
select * from(select row_number() over(order by id) as rownumber,* from t_news1)t 
where rownumber>(@pageindex-1)*@pagesize and rownumber<=@pageindex*@pagesize
go
exec pro_fenye 2,5

以上就是本文的全部内容，希望对大家的学习有所帮助。

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