发布于 2016-06-11 03:38:08 | 155 次阅读 | 评论: 0 | 来源: 网友投递

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ASP.NET

ASP.NET 是.NET FrameWork的一部分,是一项微软公司的技术,是一种使嵌入网页中的脚本可由因特网服务器执行的服务器端脚本技术,它可以在通过HTTP请求文档时再在Web服务器上动态创建它们。 指 Active Server Pages(动态服务器页面) ,运行于 IIS(Internet Information Server 服务,是Windows开发的Web服务器)之中的程序 。


本文为大家介绍下三层+存储过程分页的具体实现,前后台及存储过程代码如下,感兴趣的朋友可以参考下哈
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
 
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:
 
//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:
 
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"; 
} 
} 
} 
} 


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