三层+存储过程实现分页示例代码

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原作者: [db:作者] 来自: [db:来源] 收藏邀请

前台设计：

 
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="paging.aspx.cs" Inherits="五二一练习.paging" %> 
<!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 () { 
$('#txtPagination').focus(function () { 
$(this).val(""); 
}) 
}) 
</script> 
</head> 
<body> 
<form id="form1" runat="server"> 
<div> 
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
Height="336px" Width="685px"> 
<Columns> 
<asp:BoundField DataField="Id" HeaderText="编号" /> 
<asp:BoundField DataField="NewsTitle" HeaderText="标题" /> 
<asp:BoundField DataField="NewsContent" HeaderText="内容" /> 
<asp:BoundField DataField="CreateTime" 
DataFormatString="{0:yyyy-MM-dd hh:mm:ss}" HeaderText="发布时间" /> 
</Columns> 
</asp:GridView> 
<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="txtPagination" runat="server"></asp:TextBox> 
<asp:LinkButton ID="btnSkip" runat="server" onclick="btnSkip_Click">GO</asp:LinkButton> 
</div> 
</form> 
</body> 
</html> 

首先在数据库创建存储过程

复制代码代码如下:

 
create proc usp_role_GetDateByPageIndex 
@pageSize int, 
@pageIndex int 
as 
begin 
select * from 
( 
select *,ROW_NUMBER() over(order by role_id) as rownumber from role) as tbl 
where tbl.rownumber between (@pageSize*(@pageIndex-1)+1) and @pageIndex*@pageSize 
end 
exec usp_role_GetDateByPageIndex 5,3 

在项目中添加BLL,DAL,DataAccess,MODEL层
在DAL中写一个方法：

复制代码代码如下:

 
//自己写的方法，分页获取数据列表 
public DataTable GetListDataTable(int PageSize, int PageIndex) 
{ 
SqlParameter[] parameters = { 
new SqlParameter("@PageSize", SqlDbType.Int), 
new SqlParameter("@PageIndex", SqlDbType.Int) 
}; 
parameters[0].Value = PageSize; 
parameters[1].Value = PageIndex; 
return DbHelperSQL.RunProcedureDataTable("usp_role_GetDateByPageIndex", parameters); 
} 
在BLL中调用GetListDataTable： 
public DataTable GetListDataTable(int pagesize, int pageindex) 
{ 
return dal.GetListDataTable(pagesize, pageindex); 
} 
在DbHelper中添加RunProcedureDataTable方法： 
public static DataTable RunProcedureDataTable(string stroreProcName, IDataParameter[] parameters) 
{ 
using (SqlConnection connection = new SqlConnection(connectionString)) 
{ 
DataTable dt = new DataTable(); 
connection.Open(); 
SqlDataAdapter sqlDA = new SqlDataAdapter(); 
sqlDA.SelectCommand = BuildQueryCommand(connection, stroreProcName, parameters); 
sqlDA.Fill(dt); 
connection.Close(); 
return dt; 
} 
} 

然后在后台调用即可：

复制代码代码如下:

 
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 练习 
{ 
public partial class paging : System.Web.UI.Page 
{ 
int pagesize = 10; 
int pageindex = 1; 
protected void Page_Load(object sender, EventArgs e) 
{ 
if (!IsPostBack) 
{ 
ViewState["pageindex"] = 1; 
LadaData(); 
GetListPageindex(); 
} 
} 
private void GetListPageindex() 
{ 
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 LadaData() 
{ 
BLL.T_News1 bnews = new BLL.T_News1(); 
DataTable dt = bnews.GetListDataTable(pagesize, Convert.ToInt32(ViewState["pageindex"])); 
this.GridView1.DataSource = dt; 
this.GridView1.DataBind(); 
} 
//第一页 
protected void btnFirst_Click(object sender, EventArgs e) 
{ 
ViewState["pageindex"] = 1; 
LadaData(); 
} 
//上一页 
protected void btnPre_Click(object sender, EventArgs e) 
{ 
int pageindex = Convert.ToInt32(ViewState["pageindex"]); 
if (pagesize>1) 
{ 
pageindex--; 
ViewState["pageindex"] = pageindex; 
LadaData(); 
} 
} 
//下一页 
protected void btnNext_Click(object sender, EventArgs e) 
{ 
int pageindex = Convert.ToInt32(ViewState["pageindex"]); 
if (pageindex<Convert.ToInt32(ViewState["lastpageindex"])) 
{ 
pageindex++; 
ViewState["pageindex"] = pageindex; 
LadaData(); 
} 
} 
//最后一页 
protected void btnLast_Click(object sender, EventArgs e) 
{ 
ViewState["pageindex"] = ViewState["lastpageindex"]; 
LadaData(); 
} 
//跳转页面 
protected void btnSkip_Click(object sender, EventArgs e) 
{ 
int result; 
if (int.TryParse(txtPagination.Text, out result) == true) 
{ 
ViewState["pageindex"] = txtPagination.Text.Trim(); 
LadaData(); 
} 
else 
{ 
txtPagination.Text = "请输入合法的数字"; 
} 
} 
} 
} 