Example of JavaScript controlled navigation menu
This article mainly introduces the example code of the navigation menu controlled by js. Friends who need it can come and refer to it. I hope it will be helpful to everyone.
This menu effect is controlled by scripts and styles. , it is very good learning content for novices:
This small code was used to sort out this menu while watching Strictly Come Dancing last night. Let’s take a look at it. Once you know it, you can review the past and learn new things. No. You can learn from the idea. In fact, I just want to improve this front-end idea and make it no longer unfamiliar:
This is the menu part in the master page of asp.net
Html part:
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>
<!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>
<link type="text/css" rel="Stylesheet" href="Styles/master.css" />
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script src="Scripts/nav.js" type="text/javascript"></script>
</head>
<body>
<p class="nav" id="nav">
<input type="hidden" value="<%=Request.QueryString["menutemp"] %>" id="masterid" />
<a href="Default.aspx?menutemp=0" class="check">首页</a>
<a href="surveylist.aspx?menutemp=1">医院概况</a>
<a href="Culturelist.aspx?menutemp=2">医院文化</a>
<a href="Tumor dynamic list.aspx?menutemp=3">医院动态</a>
<a href="Services list .aspx?menutemp=4">医院服务</a>
<a href="Medical guidelines.aspx?menutemp=5">就诊指南</a>
<a href="Introduce department.aspx?menutemp=6">科室介绍</a>
</p>
</body>
</html>
Look at the css part. This is to distinguish the selected item from other items:
#master .head .nav a.check{ background:url(../images/navbg.png) 1px 1px no-repeat; color:#fff;}The following is the js part that gives life to html. It makes the web page move:
$(document).ready(function () {//表示要在网页加载之后运行
var current = $("#masterid").val();//通过jquery方式获取id=masterid的页面元素的值，其实就是为了获取选中的那个菜单
var alist = new Array();//定义数组
if (current == "") {//要是没有获取到选中的菜单，我们就忽略这个
current = -1;
}
$("#nav>a").each(function (i, items) {//这个部分就是在你点击了菜单一项后，还么有刷新页面时候的样式变化，哈哈，each是一个遍历函数，会遍历#nav>a的集合。
alist[i] = $(items);//i是从0开始到遍历集合结束为止，自增1的
$(alist[i]).click(function () {//对alist[i]进行注册点击事件，点击就会执行对应的方法，
if (i != current) {//要是选择了不同的菜单项，就会给选择的菜单加上应有的样式，而之前的就会去除样式
$(this).addClass("check");
$(alist[current]).removeClass("check");
current = i;//返回新选择的菜单项id
}
});
});
$("#nav>a").each(function (i, items) {//这是在页面跳转到新页面后对页面样式的处理，让菜单的样式正确调用。
alist[i] = $(items);
if (i != current) {
$(alist[i]).removeClass("check");
}
});
$(alist[current]).addClass("check");
});
Okay, you can try it quickly.
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