作为一个刚入行的IT小鸟，每天学习，是必须的！
光自学肯定是不够的！由于本人IQ比较低，经常一个小问题都会想不明白。
还好有媳妇儿的帮助，才把这个功能给实现了。
现在就在这里总结下，以示敬意。o(∩_∩)o 哈哈
分析：
前台页面，放置两个Repeater，然后在Repeater1 里面放置一个 HiddenField控件，用来获取标题。
然后在Repeater1 的ItemDataBound 事件种根据获取的标题来加载 二级标题。
数据库访问代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.OleDb;
using System.Data;/// <summary>
/// Summary description for MyDBHelper
/// </summary>
public class MyDBHelper
{public MyDBHelper(){//// TODO: Add constructor logic here//}//连接字符串public static string strConStr=@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\NoDB.mdb;"+"Persist Security Info=True";//连接数据库static OleDbConnection con;public static OleDbConnection Con{get {if(con==null){con = new OleDbConnection(strConStr);}else if(con.State== ConnectionState.Broken){con.Close();con.Open();}else if( con.State== ConnectionState.Closed){con.Open();}return con;}}//执行查询 返回Datatable#regionpublic static DataTable GetBySQL(string sql){DataTable dt = new DataTable();OleDbCommand cmd = new OleDbCommand(sql, Con);OleDbDataAdapter da = new OleDbDataAdapter(cmd);da.Fill(dt);return dt;} #endregion//执行删除 增加 修改#region public static int ExcuteBySQL(string sql){OleDbCommand cmd = new OleDbCommand(sql, Con);int rs = cmd.ExecuteNonQuery();return rs;}#endregion
}
页面代码：
<!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><asp:ContentPlaceHolder id="head" runat="server"></asp:ContentPlaceHolder><script src="../Script/jquery-1.3.2.min.js" language="javascript" type="text/javascript"></script><script type="text/javascript" language="javascript">$(document).ready(function () {//$("#divNavigation>dl>dt>dd").css("display","none");$("#divNavigation>dl>dt>dd").hide();$.each($("#divNavigation>dl>dt"), function () {$(this).click(function () {$("#divNavigation>dl>dt>dd").not($(this).next()).slideUp();$(this).next().slideToggle(500);});});$("ul li").mousemove(function () {$(this).css("background-color", "#ccc");}).mouseout(function () {$(this).css("background-color", "#eee");});/* 鼠标经过 */$("#divNavigation dl").each(function () {$(this).children("dt").mouseover(function () {$(this).next().css("display", "block");//$(this).next().animate({ opacity: 'show' }, 700);}).mouseout(function () {$(this).next().css("display", "none");//$(this).next().animate({ opacity: 'hide' }, 700);});/* 鼠标移动到dd上 */$(this).children("dd").mouseover(function () {$(this).css("display", "block");}).mouseout(function () {$(this).css("display", "none");});});});</script><style type="text/css">dl,dd,dt,ul,li{margin:0;padding:0;height :25px;line-height:25px; font-family:微软雅黑;font-size:12px; }#divNavigation{width:240px; text-align:center;}#divNavigation dl dt{border-top:1px solid #ccc;background-color:#ccc;border-bottom:1px solid #ccc;border-right:1px solid #ccc;border-left:1px solid #ccc;height:40px;line-height:40px;font-size:18px;cursor:pointer}#divNavigation ul li{list-style:none; }#divNavigation li{border-bottom:1px solid #ccc; border-left:1px solid #ccc;border-right:1px solid #ccc; line-height:25px;background-color:#eee;}</style>
</head>
<body><form id="form1" runat="server"><div><div style="width:1024px;height:50px;margin:0 auto; text-align:center; vertical-align:middle"><asp:Repeater ID="rptNavigation" runat="server" onitemdatabound="rptNavigation_ItemDataBound" ><ItemTemplate><div id="divNavigation" style="margin-left:1px;margin-top:10px;height:30px; float:left;"><asp:HiddenField id="hf" runat="server" Value='<%#Eval("n_name") %>'/><dl><dt><%#Eval("n_name") %></dt> <dd><ul style=""><asp:Repeater ID="rptS" runat="server"><ItemTemplate><li><%#Eval("n_name") %></li></ItemTemplate></asp:Repeater></ul></dd></dl> </div></ItemTemplate></asp:Repeater> </div><!-- 备份<div id="divNavigation" style="margin-top:10px;height:30px; float:left;"><dl><dt>基本信息管理</dt> <dd><ul style=""><li>Jquery</li><li>WPF</li><li>Asp.net</li><li>Winform</li></ul></dd></dl> </div>--> <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server"></asp:ContentPlaceHolder></div></form>
</body>
</html>CS 代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;public partial class web_web : System.Web.UI.MasterPage
{protected void Page_Load(object sender, EventArgs e){BindNavigation();}//绑定主导航public void BindNavigation(){string sql = "select * from vip_navigation where n_bid=0";rptNavigation.DataSource = MyDBHelper.GetBySQL(sql);rptNavigation.DataBind();}//项绑定事件protected void rptNavigation_ItemDataBound(object sender, RepeaterItemEventArgs e){//查找隐藏域HiddenField hfValue = (HiddenField)e.Item.FindControl("hf");//得到隐藏域的值string strName = hfValue.Value;//查找第二个RepeaterRepeater repts = (Repeater)e.Item.FindControl("rptS");//根据查找到的名称，来获取IDstring sql1 = "select n_id from vip_navigation where n_name='" + strName + "'";DataTable dt = MyDBHelper.GetBySQL(sql1);int id = 0;foreach (DataRow dr in dt.Rows){id = (int)dr["n_id"];}//根据ＩＤ获取二级导航repts.DataSource = MyDBHelper.GetBySQL("select n_name from vip_navigation where n_bid=" + id);repts.DataBind();}
}效果：
