源代码下载： http://www.cckan.net/forum.php?mod=viewthread&tid=17
一个导航条的例子
大家快做项目了， 一定会想到过自己的导航条怎么做呢，这是我做的一个小例子，我个人让为呢还行，有那位朋友想用的话，我苏飞原把所有源码奉上，呵呵别忘了给我留言啊！！！！
在.aspx源在的代码
Code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <%@ Register Src="Menus.ascx" TagName="Menus" TagPrefix="uc1" %> <!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>无标题页</title> <script language ="javascript" type ="text/javascript"> function showsubmenu(sid) 
{ 
whichEl = eval("document.getElementById('"+"submenu" + sid+"')"); imgmenu = eval("document.getElementById('"+"imgmenu" + sid+"')"); if (whichEl.style.display == "none") 
{ if (whichEl.style.display=='none') whichEl.style.display=''; else whichEl.style.display = 'none'; imgmenu.background="image/menuup.gif"; 
} else { if (whichEl.style.display=='none') whichEl.style.display=''; else whichEl.style.display = 'none'; imgmenu.background="image/menudown.gif"; } 
} </script> </head> <body> <form id="form1" runat="server"> <div> </div> <asp:Label ID="Label1" runat="server" Height="464px" Style="z-index: 100; left: 286px; position: absolute; top: 82px; 165px;" Text="Label" BackColor="#6666FF" BorderColor="#FF5050" BorderWidth="2px"></asp:Label> </form> </body> </html> 在.aspx.cs中的代码
Codeusing System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using UISBLL;
namespace buddy_BBS
{
/// <summary>
/// test 的摘要说明。
/// </summary>
public partial class left : System.Web.UI.Page
{
public string text;
DataTable BT, ST;
TreeServices objTreeServices = new TreeServices();
/// <summary>
/// 生成树
/// </summary>
/// <returns>返回一个字符串</returns>
public string MenuLoad()
{
//填充树干的内容
string trees = "", bs = "";
int i = 1;
BT = objTreeServices.SelectAllBig_Class(Convert.ToInt32(Session["Users_QX"].ToString().Trim()))[0];
ST = objTreeServices.SelectAllSmall_Class(Convert.ToInt32(Session["Users_QX"].ToString().Trim()))[0];
DataRow[] drs = BT.Select("");
foreach (DataRow r in drs)
{
trees += "<table border=0 cellPadding=0 cellSpacing=0><tr height=2><td></td></tr></table><table width='158' border=0 align='center' cellPadding=0 cellSpacing=0 bgcolor=#FFFFFF><Tbody>";
bs = "<font color='#003366'>" + r["bigclass_Name"].ToString() + "</font>";
trees += "<tr><td height=25 background='image/menudown.gif' id='imgmenu" + i + "' style='CURSOR: hand' onclick='showsubmenu(" + i + ")'> <SPAN>" + bs + "</SPAN></td></tr> <tr><td id='submenu" + i + "' style='DISPLAY: none'><DIV align='center'><table width='100%' cellPadding=0 cellSpacing=3><Tbody>";
string parentid = r["bigclass_ID"].ToString();
trees += CreateNode(parentid) + "</Tbody></table></DIV></td></tr></Tbody></table>";
i++;
}
return trees;
}
/// <summary>
/// 添加子
/// </summary>
/// <param name="parentid">根的ID</param>
/// <returns></returns>
private string CreateNode(string parentid)
{
//填充树枝的内容
string Nodes = "";
DataRow[] drsr = ST.Select("BigClass_ID = " + parentid);
foreach (DataRow rw in drsr)
{
Nodes = Nodes + "<tr><td><font color=#ff0000><IMG height=11 src='" + rw["Image"] + "' width=12> </font>" +
"<A href='" + rw["Path"] + "' target='mainFrame'>" + rw["SmallClass_Name"].ToString() + "</A></td></tr>";
}
return Nodes;
}
protected void Page_Load(object sender, EventArgs e)
{
try
{
if (Session["Users_QX"].ToString().Trim() == null || Session["Users_QX"].ToString().Trim() == "")
{
Response.Redirect("Login.aspx");
}
}
catch (Exception)
{
}
}
}
}
sql2005数据库