asp.net 实现动态添加下拉菜单

如:把鼠标放在【关于我们】的时候就会显示他的子菜单子菜单的内容是从数据库中动态调出来的鼠标移走下拉菜单就会消失
请各位大哥哥大姐姐给小弟一个完整的代码
小弟卡这都卡死啦给位帮帮我吧小弟不盛感激

解决方案 »

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<body  onclick="closeAllMenu();">
<table width="740" border="1" align="center" cellpadding="0" cellspacing="0">
  <tr>
<td height="150"> </td>
  </tr>
  <tr>
<td height="30"> 
<a href="#" onMouseOver="dispMenu('compMenuDiv',this);">供应商管理</a> |
<a href="#" onMouseOver="dispMenu('productMenuDiv',this);">产品管理</a> |
<a href="#" onMouseOver="dispMenu('helpDiv',this);">帮助</a> </td>
  </tr>
  </table>
    <table style="border-top:0px; " width="740" height="100%" border="1" align="center" cellpadding="0" cellspacing="0">
      <tr>
        <td width="145"> </td>
        <td width="589"> </td>
      </tr>
    </table>

<div id="compMenuDiv" style="position:absolute; display:none;">
        <table width="150" bgcolor="#DDDDDD" bordercolordark="#FFFFFF" bordercolor="#999999" border="1" cellpadding="6" cellspacing="0">
          <tr>
            <td> <a href="#">录入新供应商</a></td>
          </tr>
          <tr>
            <td> <a href="#">供应商查询</a></td>
          </tr>
          <tr>
            <td> <a href="#">审核供应商</a></td>
          </tr>
          <tr>
            <td> <a href="#">删除供应商</a></td>
          </tr>
        </table>
</div>
<div id="productMenuDiv" style="position:absolute; display:none; ">
        <table width="150" bgcolor="#DDDDDD" bordercolordark="#FFFFFF" bordercolor="#999999" border="1" cellpadding="6" cellspacing="0">
          <tr>
            <td> <a href="#">采购产品查询</a></td>
          </tr>
          <tr>
            <td> <a href="#">采购计划</a></td>
          </tr>
          <tr>
            <td> <a href="#">产品审核</a></td>
          </tr>
        </table><script>
  /*使用方法：
    ============================
  给相应的主菜单加事件
  给文档的body加事件
  初始化所有的菜单层不可见
============================
  */  //所有的菜单，如果添加需要扩展数组
  var menuArr = new Array("compMenuDiv","productMenuDiv","helpDiv");
  /*
    控制菜单的显示和隐藏
divID 要显示的菜单层id
eventObj 激发下拉菜单的连接对象
  */
  function dispMenu(divID,eventObj)
  {
    var divObj = document.getElementById(divID);
//getBoundingClientRect()用来获取任何一个页面元素相对文档原点的位置
//定位并显示指定菜单
    divObj.style.top = eventObj.getBoundingClientRect().top + 13;
    divObj.style.left = eventObj.getBoundingClientRect().left;
divObj.style.display = "inline"; //隐藏其余的菜单
for(var i = 0 ; i < menuArr.length ; i++)
{
  if(menuArr[i] != divID){
    document.getElementById(menuArr[i]).style.display = "none";
  }
}
  }

  /*
  窗体点击时隐藏所有菜单
  */
  function closeAllMenu()
  {
for(var i = 0 ; i < menuArr.length ; i++)
{
    document.getElementById(menuArr[i]).style.display = "none";
}
  }
</script>你把DIV里的值磅定好就可以了`
直接保存为html格式就可以运行，老外做的就是牛B啊，不服不行。
这个是照这上面我给你的第三个URL做的。 <HTML>
    <HEAD>
        <title>WebForm5</title>        <style>/* Root = Horizontal, Secondary = Vertical */
ul#navmenu-h {
  margin: 0;
  border: 0 none;
  padding: 0;
  width: 500px; /*For KHTML*/
  list-style: none;
  height: 24px;
}ul#navmenu-h li {
  margin: 0;
  border: 0 none;
  padding: 0;
  float: left; /*For Gecko*/
  display: inline;
  list-style: none;
  position: relative;
  height: 24px;
}ul#navmenu-h ul {
  margin: 0;
  border: 0 none;
  padding: 0;
  width: 160px;
  list-style: none;
  display: none;
  position: absolute;
  top: 24px;
  left: 0;
}ul#navmenu-h ul:after /*From IE 7 lack of compliance*/{
  clear: both;
  display: block;
  font: 1px/0px serif;
  content: ".";
  height: 0;
  visibility: hidden;
}ul#navmenu-h ul li {
  width: 160px;
  float: left; /*For IE 7 lack of compliance*/
  display: block !important;
  display: inline; /*For IE*/
}/* Root Menu */
ul#navmenu-h a {
  border: 1px solid #FFF;
  border-right-color: #CCC;
  border-bottom-color: #CCC;
  padding: 0 6px;
  float: none !important; /*For Opera*/
  float: left; /*For IE*/
  display: block;
  background: #EEE;
  color: #666;
  font: bold 10px/22px Verdana, Arial, Helvetica, sans-serif;
  text-decoration: none;
  height: auto !important;
  height: 1%; /*For IE*/
}/* Root Menu Hover Persistence */
ul#navmenu-h a:hover,
ul#navmenu-h li:hover a,
ul#navmenu-h li.iehover a {
  background: #CCC;
  color: #FFF;
}/* 2nd Menu */
ul#navmenu-h li:hover li a,
ul#navmenu-h li.iehover li a {
  float: none;
  background: #EEE;
  color: #666;
}/* 2nd Menu Hover Persistence */
ul#navmenu-h li:hover li a:hover,
ul#navmenu-h li:hover li:hover a,
ul#navmenu-h li.iehover li a:hover,
ul#navmenu-h li.iehover li.iehover a {
  background: #CCC;
  color: #FFF;
}/* 3rd Menu */
ul#navmenu-h li:hover li:hover li a,
ul#navmenu-h li.iehover li.iehover li a {
  background: #EEE;
  color: #666;
}/* 3rd Menu Hover Persistence */
ul#navmenu-h li:hover li:hover li a:hover,
ul#navmenu-h li:hover li:hover li:hover a,
ul#navmenu-h li.iehover li.iehover li a:hover,
ul#navmenu-h li.iehover li.iehover li.iehover a {
  background: #CCC;
  color: #FFF;
}/* 4th Menu */
ul#navmenu-h li:hover li:hover li:hover li a,
ul#navmenu-h li.iehover li.iehover li.iehover li a {
  background: #EEE;
  color: #666;
}/* 4th Menu Hover */
ul#navmenu-h li:hover li:hover li:hover li a:hover,
ul#navmenu-h li.iehover li.iehover li.iehover li a:hover {
  background: #CCC;
  color: #FFF;
}ul#navmenu-h ul ul,
ul#navmenu-h ul ul ul {
  display: none;
  position: absolute;
  top: 0;
  left: 160px;
}/* Do Not Move - Must Come Before display:block for Gecko */
ul#navmenu-h li:hover ul ul,
ul#navmenu-h li:hover ul ul ul,
ul#navmenu-h li.iehover ul ul,
ul#navmenu-h li.iehover ul ul ul {
  display: none;
}ul#navmenu-h li:hover ul,
ul#navmenu-h ul li:hover ul,
ul#navmenu-h ul ul li:hover ul,
ul#navmenu-h li.iehover ul,
ul#navmenu-h ul li.iehover ul,
ul#navmenu-h ul ul li.iehover ul {
  display: block;
}</style><script language="javascript">
navHover = function() {
    var lis = document.getElementById("navmenu-h").getElementsByTagName("LI");
    for (var i=0; i<lis.length; i++) {
        lis[i].onmouseover=function() {
            this.className+=" iehover";
        }
        lis[i].onmouseout=function() {
            this.className=this.className.replace(new RegExp(" iehover\\b"), "");
        }
    }
}
if (window.attachEvent) window.attachEvent("onload", navHover);
        </script>
    </HEAD>
    <body>
   <ul id="navmenu-h">
   <li><a href="#">Root nav item1</a>
   <ul>
   <li><a href="#">Sub nav item1</a></li>
<li><a href="#">Sub nav item1-2</a></li>
   </ul>
   </li>
<li><a href="#">Root nav item2</a>
   <ul>
   <li><a href="#">Sub nav item2</a></li>
<li><a href="#">Sub nav item2-2</a></li>
   </ul>
   </li>
<li><a href="#">Root nav item3</a>
   <ul>
   <li><a href="#">Sub nav item3</a></li>
<li><a href="#">Sub nav item3-2</a></li>
   </ul>
   </li>
   </ul>
</body>
</html>
只要把html代码里的菜单文字换成服务器控件就可以了，在后台可以设置，绑定。。
有个Menu控件不用写
拖过来直接用