Two examples of JQuery menu effects (3)

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Two examples of JQuery menu effects (3)_jquery

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May 16, 2016 pm 03:38 PM

The final effect to be achieved is as shown in the figure:

When a menu item is clicked, the menu can be folded and expanded. This is an effect we often see on web pages. The main application here is to control the style with CSS and then implement it with jquery.
My own thoughts: For example, here, for example, binding the page to be jumped is only static binding, not dynamic binding. The dynamic binding I used during the development process is implemented in combination with the treeview control of ASP.NET. I don’t know if anyone has a better way.
Front page code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="menu.aspx.cs" Inherits="menu" %> 
 
<!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> 
 <script src="js/jquery-1.9.1.min.js" type="text/javascript"></script> 
 <script src="js/menu.js" type="text/javascript"></script> 
 <link href="css/menu.css" rel="stylesheet" type="text/css" /> 
</head> 
<body> 
 <form id="form1" runat="server"> 
 <div> 
  <ul> 
   <li class="main"> 
    <a href="#">菜单项1</a> 
    <ul> 
     <li><a href="#">子菜单11</a></li> 
     <li><a href="#">子菜单12</a></li>      
    </ul>    
   </li> 
   <li class="main"> 
    <a href="#">菜单项2</a> 
    <ul> 
     <li><a href="#">子菜单21</a></li> 
     <li><a href="#">子菜单22</a></li> 
    </ul> 
   </li> 
   <li class="main"> 
    <a href="#">菜单项3</a> 
    <ul> 
     <li><a href="#">子菜单31</a></li> 
     <li><a href="#">子菜单32</a></li> 
    </ul> 
   </li> 
  </ul> 
 </div> 
 </form> 
</body> 
</html>

CSS (menu.css)

ul,li 
{ 
 list-style-type:none; 
 /*如果不加margin在搜狗浏览器中不能左对齐*/ 
 margin:0px;  
 padding:0px; 
 } 
.main 
{ 
 background-image: url("../images/title.gif"); 
 background-repeat:repeat-x; 
 width:100px; 
 } 
.main a 
{ 
 background-image:url("../images/collapsed.gif"); 
 background-repeat:no-repeat; 
 background-position:3px center; 
 text-decoration:none; 
 color:White; 
 /*下面是用来保证鼠标只要停留在li上就可以响应，也就相当于让li的响应区域扩充了*/ 
 display:block; 
 padding-left:20px; 
 padding-bottom:3px; 
 } 
li 
{ 
 background-color:#EEEEEE; 
 } 
.main li a 
{ 
 color:Black; 
 background-image:none; 
 }

menu.js:

/// <reference path="jquery-1.9.1.min.js" /> 
$(document).ready(function () { 
 var main = $(".main>a"); 
 main.click(function () { 
  var ulNode = $(this).next("ul"); 
  //  if (ulNode.css("display") == "none") { 
  //   ulNode.css("display", "block"); 
  //  } 
  //  else { 
  //   ulNode.css("display", "none");    
  //  } 
 
  //百叶窗的效果 
  ulNode.slideToggle("normal"); 
 }); 
});

This example is a continuation of the previous example. Let’s first take a look at the final effect we want to achieve:

What we want to achieve this time is the following effect. When the mouse slides to the menu item, the submenu is displayed; when the mouse moves away, the menu collapses.
Here, we also solved the problem in sliding doors, which is that when the mouse slides quickly, it will keep triggering.

The code of the page is as follows:

 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="menu.aspx.cs" Inherits="menu" %> 
 
<!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> 
 <script src="js/jquery-1.9.1.min.js" type="text/javascript"></script> 
 <script src="js/menu.js" type="text/javascript"></script> 
 <link href="css/menu.css" rel="stylesheet" type="text/css" /> 
</head> 
<body> 
 <form id="form1" runat="server"> 
 <div> 
  <ul> 
   <li class="main"> 
    <a href="#">菜单项1</a> 
    <ul> 
     <li><a href="#">子菜单11</a></li> 
     <li><a href="#">子菜单12</a></li>      
    </ul>    
   </li> 
   <li class="main"> 
    <a href="#">菜单项2</a> 
    <ul> 
     <li><a href="#">子菜单21</a></li> 
     <li><a href="#">子菜单22</a></li> 
    </ul> 
   </li> 
   <li class="main"> 
    <a href="#">菜单项3</a> 
    <ul> 
     <li><a href="#">子菜单31</a></li> 
     <li><a href="#">子菜单32</a></li> 
    </ul> 
   </li> 
  </ul> 
 </div> 
 
 <div style=" margin-top:50px;"> 
  <ul> 
   <li class="hmain"> 
    <a href="#">菜单项1</a> 
    <ul> 
     <li><a href="#">子菜单11</a></li> 
     <li><a href="#">子菜单12</a></li>      
    </ul>    
   </li> 
   <li class="hmain"> 
    <a href="#">菜单项2</a> 
    <ul> 
     <li><a href="#">子菜单21</a></li> 
     <li><a href="#">子菜单22</a></li> 
    </ul> 
   </li> 
   <li class="hmain"> 
    <a href="#">菜单项3</a> 
    <ul> 
     <li><a href="#">子菜单31</a></li> 
     <li><a href="#">子菜单32</a></li> 
    </ul> 
   </li> 
  </ul> 
 </div> 
 </form> 
</body> 
</html>

CSS(menu.css)

ul,li 
{ 
 list-style-type:none; 
 /*如果不加margin在搜狗浏览器中不能左对齐*/ 
 margin:0px;  
 padding:0px; 
 } 
.main,.hmain 
{ 
 background-image: url("../images/title.gif"); 
 background-repeat:repeat-x; 
 width:100px; 
 } 
.main a,.hmain a 
{ 
 background-image:url("../images/collapsed.gif"); 
 background-repeat:no-repeat; 
 background-position:3px center; 
 text-decoration:none; 
 color:White; 
 /*下面是用来保证鼠标只要停留在li上就可以响应，也就相当于让li的响应区域扩充了*/ 
 display:block; 
 padding-left:20px; 
 padding-bottom:3px; 
 } 
li 
{ 
 background-color:#EEEEEE; 
 } 
.main li a,.hmain li a 
{ 
 color:Black; 
 background-image:none; 
 } 
.main ul,.hmain ul 
{ 
 display:none; 
 } 
/*横向菜单的样式*/ 
.hmain 
{ 
 float:left; 
 }

menu.js

/// <reference path="jquery-1.9.1.min.js" /> 
$(document).ready(function () { 
 var main = $(".main>a"); 
 main.click(function () { 
  var ulNode = $(this).next("ul"); 
  //  if (ulNode.css("display") == "none") { 
  //   ulNode.css("display", "block"); 
  //  } 
  //  else { 
  //   ulNode.css("display", "none");    
  //  } 
 
  //百叶窗的效果 
  ulNode.slideToggle("normal"); 
 }); 
 
 //现在的这个变量用来解决鼠标快速滑动问题clearInterval(setTimeoutId); nodeLi.children("ul").slideUp(); 
 var setTimeoutId; 
 $(".hmain").hover(function () { 
  var nodeLi = $(this); 
  setTimeoutId = window.setTimeout(function () { nodeLi.children("ul").slideDown(); }, 300) 
 }, 
 //上面的函数是鼠标进入的操作，下面的操作是鼠标移出的操作。 
  function () { 
   //开始的时候，我在这里犯了一个错误，应该重新定义一下nodeLi 
   var nodeLi = $(this); 
   clearTimeout(setTimeoutId); 
   if (nodeLi.children("ul").length != 0) { 
    nodeLi.children("ul").slideUp(); 
   }; 
  }); 
});

Have you mastered the above two menu effects? I hope this article can help you.

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