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  • 三层架构+存储过程实现分页

    首先在项目下加入BLL,DAL,DataAccess,MODEL类库

    -------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>

    -----------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"; }
            }
        }
    }

    -----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

    实现效果:

    文本框内输入跳转的页数,点击GO会跳转到该页


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  • 原文地址:https://www.cnblogs.com/javawebsoa/p/3091414.html
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