.aspx代码如下：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default17.aspx.cs" Inherits="Default17" %>
<!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="jquery-1.8.3.js" type="text/javascript"></script>
<script type ="text/javascript">
$(document).ready(function () {
$("a.m0").mouseenter(function () {
$(".submenu").hide();//开启之前全部关闭子菜单
$("+.submenu", this).fadeIn(200);
});
$("#div_menu").mouseleave(function () {
$(".submenu").fadeOut(200);
});
});
</script>
<style type ="text/css" >
body { margin:0px; padding:0px;}
#div_menu { border: 1px solid silver;
background-image:url(imgs/back_head.jpg);
background-repeat:repeat-x; }
a { display:block; text-decoration:none; color:Gray;}
a:hover { color:#930;}
a.m0 { margin:10px 0px 10px 0px;
padding:0px 10px 0px 10px; }
.menuset+.menuset a.m0
{ border-left:1px solid silver;}
a.m1 { margin:5px; padding:10px;
font-size:12px; }
.menuset { float:left;}
.submenu { position:absolute;
display:none; }
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<div id="div_menu" runat="server"></div>
</div>
</form>
</body>
</html>
.aspx.cs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.OleDb;
public partial class Default17 : System.Web.UI.Page
{ string str_cnn = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=";
string str_sourcefile = "mdb\\mydb.mdb";
OleDbConnection cnn;
OleDbCommand cmd;
OleDbDataReader datar;
string str_sql;
protected void Page_Load(object sender, EventArgs e)
{
makenav();
}
protected void makenav() {
string str_conn = str_cnn + MapPath(str_sourcefile);
cnn = new OleDbConnection(str_conn);
cnn.Open();
str_sql = "SELECT t_menuL0.*, t_menuL1.* FROM t_menuL1 RIGHT JOIN t_menuL0 ON t_menuL1.m1_m0id = t_menuL0.m0_id";
cmd = new OleDbCommand(str_sql, cnn);
datar = cmd.ExecuteReader();
Panel pnl_menuset, pnl_submenu;
HyperLink a_m0, a_m1;
while (datar.Read()) {
string s_m0 = datar["m0_id"].ToString();
pnl_menuset = (Panel)div_menu.FindControl("div_menuset_"+s_m0);
if (pnl_menuset == null) {
pnl_menuset = new Panel(); pnl_menuset.CssClass = "menuset";
pnl_menuset.ID = "div_menuset_" + s_m0;
div_menu.Controls.Add(pnl_menuset);
}
pnl_menuset = (Panel)div_menu.FindControl("div_menuset_" + s_m0);
a_m0 = (HyperLink)FindControl("a_m0_"+s_m0);
if (a_m0 == null) {
a_m0 = new HyperLink(); a_m0.CssClass = "m0";
a_m0.ID = "a_m0_" + s_m0;
a_m0.Text = datar["m0_ttl"].ToString();
a_m0.NavigateUrl = datar["m0_url"].ToString();
pnl_menuset.Controls.Add(a_m0);
}
if (!(datar["m1_ttl"] is DBNull)) {
pnl_submenu = (Panel)FindControl("div_submenu_" + s_m0);
if (pnl_submenu == null) {
pnl_submenu = new Panel(); pnl_submenu.CssClass = "submenu";
pnl_submenu.ID = "div_submenu_" + s_m0;
pnl_menuset.Controls.Add(pnl_submenu);
}
pnl_submenu = (Panel)FindControl("div_submenu_" + s_m0);
a_m1 = new HyperLink(); a_m1.CssClass = "m1";
a_m1.ID = "a_m1_" + datar["m1_id"].ToString();
a_m1.Text = datar["m1_ttl"].ToString();
a_m1.NavigateUrl = datar["m1_url"].ToString();
pnl_submenu.Controls.Add(a_m1);
}
}
cnn.Close();
Panel p = new Panel();
p.Style.Add("clear", "both");
div_menu.Controls.Add(p);
}
}
原文地址：http://blog.csdn.net/yayun0516/article/details/41810733
