asp.net 分頁sql語句(結(jié)合aspnetpager)

2024-07-10 13:20:46

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供稿：網(wǎng)友

數(shù)據(jù)庫操作類：

復(fù)制代碼代碼如下:

/// <summary>
/// 取得總數(shù)
/// </summary>
/// <returns></returns>
public string getTotal()
{
StringBuilder sb = new StringBuilder();
sb.Append("select count(*) total from Test");
DataTable dt = DBHelper.ExecuteDt(sb.ToString());
return dt.Rows[0][0].ToString();
}
/// <summary>
/// 根據(jù)當前頁碼，每頁條數(shù)，取得相應(yīng)數(shù)據(jù)。
/// </summary>
/// <param>每頁顯示條數(shù)</param>
/// <param>當前頁碼</param>
/// <returns></returns>
public DataTable getPagesData(int pageNum, int currentPage)
{
StringBuilder sb = new StringBuilder();
sb.Append("select top " + pageNum + " * from Test where ");
sb.Append("ID not in (select top " + pageNum * currentPage + " ID from Test)");
return DBHelper.ExecuteDt(sb.ToString());
}

前臺：

復(fù)制代碼代碼如下:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="sqlPager_Default" %>
<%@ 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>不用存儲過程的分頁</title>
</head>
<body>
<form runat="server">
<div>
<asp:gridview runat="server">
</asp:gridview>
</div>
<div>
<webdiyer:aspnetpager runat="server" OnPageChanged="AspNetPager1_PageChanged" PageSize="3">
</webdiyer:aspnetpager>
</div>
</form>
</body>
</html>

后臺：

復(fù)制代碼代碼如下:

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;

public partial class sqlPager_Default : System.Web.UI.Page
{
BLL.Test test = new BLL.Test();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
AspNetPager1.RecordCount = Convert.ToInt32(test.getTotal());//此屬性保存總記錄數(shù)..
Bind();
}
}
private void Bind()
{
this.gvSql.DataSource = test.getPagesData(Convert.ToInt32(AspNetPager1.PageSize), AspNetPager1.CurrentPageIndex - 1);
this.gvSql.DataBind();
}
protected void AspNetPager1_PageChanged(object sender, EventArgs e)
{
Bind();
}
}