用户控件 分类列表导航栏

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<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="NavDevice.ascx.cs" Inherits="IOT.Web.NavDevice" %>

<style type="text/css">
body
{
    margin: 0;
    text-align: left;
    color: #000;
    font: normal 12px Arial,Verdana,Tahoma;
    background: #C8D0D5;
    line-height: 150%;
}
a:link, a:visited
{
    color: #385065;
    text-decoration: none;
    font-size:12px;
}
a:hover
{
    text-decoration: underline;
}
#menu
{
    width: 150px;
    margin: 0px 15px;
    padding: 0px;
    text-align: left;
    list-style: none;
}
#menu .item
{
    margin: 5px 0px;
    padding: 0px;
    list-style: none;
}
a.title:link, a.title:visited, a.title:hover
{
    display: block;
    color: #385065;
    font-weight: bold;
    padding: 2px 0 0 22px;
    width: 128px;
    line-height: 23px;
    cursor: pointer;
    text-decoration: none;
}
#menu .item ul
{
    border: 0px solid #9FACB7;
    margin: 0;
    width: 118px;
    padding: 3px 0px 3px 30px;
    background: #fff;
    list-style: none;
    display: none;
}
#menu .item ul li
{
    display: block;

</style>

<div>
    <ul id="menu">
        <li class="item"><a href="DeviceADLNA.aspx?oid=1" onclick="javascript:void(0)" class="title"
            name="1">DLNA Device</a>
            <ul id="opt_1" class="optiton">
                <li><a href="DeviceADLNA.aspx?oid=1&cid=1">PHF</a></li>
                <li><a href="DeviceADLNA.aspx?oid=1&cid=2">Charger& USB</a></li>
                <li><a href="DeviceADLNA.aspx?oid=1&cid=3">BT Headset</a></li>
                <li><a href="DeviceADLNA.aspx?oid=1&cid=4">NFC Tag</a></li>
            </ul>
        </li>
        <li class="item"><a href="DeviceADLNA.aspx?oid=2" onclick="javascript:void(0)" class="title"
            name="2">SE Device</a>
            <ul id="opt_2" class="optiton">
                <li><a href="#">PHF</a></li>
                <li><a href="#">Charger& USB</a></li>
                <li><a href="#">BT Headset</a></li>
                <li><a href="#">NFC Tag</a></li>
            </ul>
        </li>
        <li class="item"><a href="DeviceADLNA.aspx?oid=3" onclick="javascript:void(0)" class="title"
            name="3">Non-SE Device</a>
            <ul id="opt_3" class="optiton">
                <li><a href="#">PHF</a></li>
                <li><a href="#">Charger& USB</a></li>
                <li><a href="#">BT Headset</a></li>
                <li><a href="#">NFC Tag</a></li>
            </ul>
        </li>
    </ul>
</div>

 

<script type="text/javascript">

 // --- 获取ClassName
 document.getElementsByClassName = function(cl) {
  var retnode = [];
  var myclass = new RegExp('\\b'+cl+'\\b');
  var elem = this.getElementsByTagName('*');
  for (var j = 0; j < elem.length; j++) {
   var classes = elem[j].className;
   if (myclass.test(classes)) retnode.push(elem[j]);
  }
  return retnode;
 }

 // --- 隐藏所有
 function HideAll() {
  var items = document.getElementsByClassName("optiton");
  for (var j=0; j<items.length; j++) {
   items[j].style.display = "none";
  }
 }
 // --- 设置cookie
 function setCookie(sName,sValue,expireHours) {
  var cookieString = sName + "=" + escape(sValue);
  //;判断是否设置过期时间
if (expireHours>0) {
    var date = new Date();
    date.setTime(date.getTime + expireHours * 3600 * 1000);
    cookieString = cookieString + "; expire=" + date.toGMTString();
  }
  document.cookie = cookieString;
 }
 //--- 获取cookie
 function getCookie(sName) {
   var aCookie = document.cookie.split("; ");
   for (var j=0; j < aCookie.length; j++){
  var aCrumb = aCookie[j].split("=");
  if (escape(sName) == aCrumb[0])
    return unescape(aCrumb[1]);
   }
   return null;
 }

 window.onload = function() {
  var show_item = "opt_1";
  if (getCookie("show_item") != null) {
    show_item= "opt_" + getCookie("show_item");
  }
  document.getElementById(show_item).style.display = "block";
  var items = document.getElementsByClassName("title");
  for (var j=0; j<items.length; j++) {
   items[j].onclick = function() {
    var o = document.getElementById("opt_" + this.name);
    if (o.style.display != "block") {
     HideAll();
     o.style.display = "block";
     setCookie("show_item",this.name);
    }
    else {
     o.style.display = "none";
    }
   }
  }
 }
</script>