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从零开始学习jQuery教程：jQueryUI常用功能实战(10)

点击次数:2520  更新日期:2011-01-05
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上一篇：从零开始学习jQuery教程：jQuery工具函数(9)


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一.摘要


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本系列文章将带您进入jQuery的精彩世界, 其中有很多作者具体的使用经验和解决方案, 即使你会使用jQuery也能在阅读中发现些许秘籍.


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本文是实战篇. 使用jQueryUI完成制作网站的大部分常用功能.

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二.前言


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经过公司内部收集, 整理了一些经常使用javascript实现的功能. 实现这些功能的主角不是让人眼花缭乱的jQuery插件, 而是jQuery UI.


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如果你还在为了一个小小的特效而去下载并安装插件, 发现Bug还没有人替你解决. 记住插件是我们没有办法的最后选择.


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使用插件有太多的坏处:


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1.不利于维护


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2.增加页面大小


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3.不利于成员间交流共享,具有学习成本.


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4.不够健壮, 不能保证插件版本一直更新并修复所有问题.


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下面就引入今天的主角:jQuery UI

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三.jQuery UI


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jQuery UI 是 jQuery 的一部分, 是在jQuery之上的一套专门用于UI交互的类库. 使用jQuery UI可以实现底层交互, 各种高级特效, 动画, 并且可定制主题.


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我们可以用它轻松的构建高度交互的Web应用程序.


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官方首页:
http://jqueryui.org/


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下载:
http://jqueryui.com/download


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示例和文档:
http://jqueryui.com/demos/


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皮肤:
http://jqueryui.com/themeroller/

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jQuery UI 的在线网站十分强大. 首先就是在下载时可以组装自己想要的功能定制下载:


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image


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并且针对各种控件不仅提供了详细的参数说明和实例, 还可以随时更换实例的皮肤:


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image


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本文主要讲解实例, 大家可以通过实例代码快速上手jQuery UI. 使用jQuery UI我们可以再不借助其他插件的情况下完成大部分页面应用, 说其是一个官方的超级UI插件也不为过. 包含所有功能的jQuery UI类库文件为188K, 启用Gzip压缩后是45K. 虽然较大但是一次加载全网站获益.而且45K大小在当今的互谅网时代还算可以接受.


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目前还没有jQuery UI的中文教程. 因为本文是实战篇, 所以不会仔细讲解基础内容. 在后面的章节中我会加入jQuery UI的基础教程.争取成为中文jQuery UI第一教程.

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四. 准备工作


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我将所有相关的文件, 包括各种类库文件, Theme模板放置在如下路径:


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http://www.dotnetapi.com/JSLib/


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此路径开通了目录浏览, 可以直接查找需要的文件. 目录组织结构按照本系列: (八) 插播:jQuery实施方案 中介绍的方案组织.


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另外也可以从Google上引用文件, Google的CDN速度更快也更有保证, 参见: Google’s CDN


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本文的实例的所有引用都使用 WebConfig.ResourceServer 这个属性:

public class WebConfig
\n{
\n    public static string ResourceServer = @”http://www.dotnetapi.com/”;
}

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.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }

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五.弹出层对话框


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弹出框是最常用最实用的功能. 先来看一下艺龙网上的一些应用场景.


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1. 艺龙网应用场景举例


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(1) 静态提示类弹出层. 弹出层的内容是固定的.


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image

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(2) 动态提示类弹出层. 弹出层内容是根据事件源变化的.


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image


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(3)遮罩类弹出层. 弹出时背景变灰并不可点击.


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image


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2. 应用实例


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使用 jQuery UI 的 Dialog 组件. 我以轻松实现上面三种效果.


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Dialog组件的主要特点是可以拖动(Draggable), 可以改变大小(Resizable) .


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示例完整代码如下:

<%@ Page Language=”C#” %>
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<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
\n<html xmlns=”http://www.w3.org/1999/xhtml”>
\n<head id=”Head1″ runat=”server”>
\n    <title>jQuery UI – 弹出层应用实例 Dialog</title>
\n    <!–black-tie,blitzer,blitzer,dot-luv,excite-bike,hot-sneaks,humanity,mint-choc,redmond,smoothness,south-street,start,swanky-purse,trontastic,ui-darkness,ui-lightness,vader–>
\n    <link rel=”stylesheet” type=”text/css” href=”<%=WebConfig.ResourceServer +”/JsLib/jquery/themes/redmond/style.css”%>” />
\n    <script type=”text/javascript” src=”<% =WebConfig.ResourceServer %>/JsLib/jquery/jquery-min-lastest.js”></script>
\n    <script src=”<% =WebConfig.ResourceServer %>/JsLib/jquery/ui/jquery-ui-all-min-lastest.js”
\n        type=”text/javascript”></script>
\n    <% if (false)
\n       {%><script src=”~/js/jquery-vsdoc-lastest.js” type=”text/javascript”></script>
\n    <% }%>
\n    <script type=”text/javascript”>
\n        /*========== 必须放在头部加载的语句块. 尽量避免使用 ==========*/
\n    </script>
\n    <style type=”text/css”>
\n        </style>
\n</head>
\n<body>
\n    <!– Demo 静态提示类弹出层 –>
\n    <div class=”ui-widget ui-widget-content ui-corner-all” style=”width: 700px; padding: 5px;”>
\n        <h3>Demo. 共享同一个静态弹出层, 弹出层内容固定: </h3>
\n        <div>
\n            <span id=”spanShowTip1″>显示提示</span>&nbsp;&nbsp; <span id=”spanShowTip2″>显示提示</span>&nbsp;&nbsp;
\n            <span id=”spanShowTip3″>显示提示</span>&nbsp;&nbsp; <span id=”spanShowTip4″>显示提示</span>&nbsp;&nbsp;
\n        </div>
\n    </div>
\n    <br />
\n    <br />
\n    <!– Demo 动态提示类弹出层 –>
\n    <div class=”ui-widget ui-widget-content ui-corner-all” style=”width: 700px; padding: 5px;”>
\n        <h3>Demo. 每个弹出层内容不同, 弹出层内容存储在事件源的元素属性中: </h3>
\n        <div>
\n            <span id=”spanShowDataTip1″ data=”颜色是红色”>红色</span>&nbsp;&nbsp;
\n            <span id=”spanShowDataTip2″ data=”颜色是绿色”>绿色</span>&nbsp;&nbsp;
\n        </div>
\n    </div>
\n    <br />
\n    <br />
\n    <!– Demo 遮罩类弹出层 –>
\n    <div class=”ui-widget ui-widget-content ui-corner-all” style=”width: 700px; padding: 5px;”>
\n        <h3>Demo. 弹出IFrame </h3>
\n        <div>
\n            <input type=”button” id=”btnShowIframe” name=”btnShowIframe” value=”显示弹出层”/>
\n        </div>
\n    </div>
\n
    <!– 提示类弹出层 –>
\n    <div id=”divTip” title=”自定义标题”>
\n        <p>弹出层</p>
\n    </div>
\n    <!– 遮罩类弹出层 –>
\n    <div id=”divIframe” title=”iFrame弹出层” style=”text-align:center;”>
\n        <iframe src=”http://www.elong.com” width=”450px” height=”230px”></iframe>
\n    </div>
\n    <script type=”text/javascript”>
\n        /*==========用户自定义方法==========*/
\n
        /*==========事件绑定==========*/
\n        (function()
\n        {
\n            //静态提示类弹出层
\n            (“span[id^=spanShowTip]“).css(“cursor”, “pointer”).click(function(event)
\n            {
\n                (“*”).stop();
\n                event.stopPropagation();
\n                var top = (event.target).offset().top + 20;
\n                var left = (event.target).offset().left;
\n                (“#divTip”).dialog(“option”, “position”, [left, top]);
\n                (“#divTip”).dialog(“open”);
\n            });
\n            //动态提出类弹出层
\n            (“span[id^=spanShowDataTip]“).css(“cursor”, “pointer”).click(function(event)
\n            {
\n                (“*”).stop();
\n                (“#divTip”).dialog(“close”);
\n                event.stopPropagation();
\n                var top = (event.target).offset().top + 20;
\n                var left = (event.target).offset().left;
\n                (“#divTip”).html((event.target).attr(“data”));
\n                (“#divTip”).dialog(“option”, “position”, [left, top]);
\n                (“#divTip”).dialog(“open”);
\n            });
\n            //遮罩类弹出层
\n            (“#btnShowIframe”).click(function(event)
\n            {
\n                event.preventDefault();
\n                event.stopPropagation();
\n                (“#divIframe”).dialog(“open”);
\n            });
\n
            //单击自身取消冒泡
\n            (“#divTip, #divIframe”).bind(“click”, function(event)
\n            {
\n                event.stopPropagation();
\n            });
\n
            //document对象单击隐藏所有弹出层
\n            (document).bind(“click”, function(event)
\n            {
\n                (“#divTip”).dialog(“close”);
\n                (“#divIframe”).dialog(“close”);
\n            });
\n        });
\n
        /*==========加载时执行的语句==========*/
\n        (function()
\n        {
\n
            //初始化提示类弹出层
\n            (“#divTip”).dialog({
\n                show: null,
\n                bgiframe: false,
\n                autoOpen: false
\n            });
\n
            //初始化遮罩类弹出层
\n            (“#divIframe”).dialog({
\n                show: null,
\n                bgiframe: false,
\n                autoOpen: false,
\n                width: 500,
\n                height: 300,
\n                draggable: true,
\n                resizable: false,
\n                modal: true
\n            });
\n        });
\n    </script>
\n</body>
\n</html>

\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }

\n


效果如图:


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静态提示类弹出层


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image


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动态提示类弹出层:


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image


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遮罩类弹出层:


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image

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3.关键点讲解


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(1)计算弹出层位置


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提示类弹出框最重要的是计算弹出框的位置. 通过事件对象获取到事件源, 使用offset()函数计算事件源相对于document的位置:

                var top = (event.target).offset().top;
\n                var left = (event.target).offset().left;

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因为是相对于document, 即页面左上角的位置, 所以需要将弹出层放在Body元素中的第一层. 即父类就是body. 如果包含在其他元素中, 需要确定任何一个父类的position样式设置为了relative.


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计算出来的top和left是事件源的位置, 在此位置显示会将事件源对象遮盖住. 所以通常需要手工做一些偏移, 比如top+20.


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(2) 取消冒泡和浏览器默认行为


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如果我们为document对象绑定了单击后关闭弹出层的事件, 那么就一定要取消事件的冒泡. 使用event对象的stopPropagation()方法可以取消冒泡.

event.stopPropagation();

\n

\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }
\n


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对于具有默认行为的元素,比如提交按钮的提交表单行为, <a>元素的超链接行为等, 我们如果在这些元素上应用事件, 还需要取消它们的默认行为:

event.preventDefault();

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\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }
\n


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(3) 设置动画效果与取消动画


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通过设置dialog的配置项的show属性, 可以设置显示dialog时候的动画效果:

(‘.selector’).dialog({ show: ‘slide’ });

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show默认为null即无动画, 可以是使用下列值:

‘blind’, ‘clip’, ‘drop’, ‘explode’, ‘fold’, ‘puff’, ‘slide’, ‘scale’, ‘size’, ‘pulsate’.

\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }
\n
对于这些动画的效果, 可以在此页观看:
\n

http://jqueryui.com/demos/show/


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当一个动画效果执行时, 如果用户在此对这个元素进行操作, 就会出现各种问题, 比如定位不准确等. 所以如果应用了动画, 我们在对其操作时需要使用stop()函数来停止动画, 通常是停止虽有元素的动画:

(“*”).stop();

\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }

\n


但是即使停止了动画再进行操作, 如果操作的太快也容易产生问题. 所以至于是否使用动画需要经过权衡决定.


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(4) 动态提示类弹出层的数据传递


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动态提示类弹出层的数据是不同的, 本文实例使用的是将数据存储在元素属性data上:

<span id=”spanShowDataTip1″ data=”颜色是红色”>红色</span>

\n

这是一种简单直观的方式. 比较容易编程实现(尤其是在使用MVC编程模型的时候.)


\n

还有一种常用方式是使用javascript变量存储数据.这两种方式在第5章时有过讲解:


\n

http://www.cnblogs.com/zhangziqiu/archive/2009/05/06/jQuery-Learn-5.html


\n

(5)更换主题


\n

大家注意实例中的弹出层没有为其编辑任何样式, 但是显示出来后已经被美化过了. 这是因为我引用了jQuery UI的主题:

    <!–black-tie,blitzer,blitzer,dot-luv,excite-bike,hot-sneaks,humanity,mint-choc,redmond,smoothness,south-street,start,swanky-purse,trontastic,ui-darkness,ui-lightness,vader–>
\n    <link rel=”stylesheet” type=”text/css” href=”<%=WebConfig.ResourceServer +”/JsLib/jquery/themes/redmond/style.css”%>” />

\n

\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }
\n


\n

注释中有很多的主题, 只需要将引用路径中的”redmond”改为其中任何一个, 弹出层的样式会立刻发生变化.


\n

VS中有一个Bug, 就是针对link标签, href中的语句块编译有问题, 某些情况下<%%>不被编辑解析. 所以我使用上面代码中的方式构造href属性值.


\n

可以在下面的地址查看各个主题的效果:


\n

http://jqueryui.com/themeroller/#themeGallery

\n

六.Tab标签


\n

不刷新页面, 在页面中的不同标签间切换:


\n

image


\n

本实例通过jQuery UI的Tabs组件实现. Tabs组件的使用与dialog一样十分简单, 默认的配置即可实现最简单的tab, 通过设置更多的options可以实现更复杂的应用.


\n

1.应用实例


\n

源代码:

<%@ Page Language=”C#” %>
\n<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
\n<html xmlns=”http://www.w3.org/1999/xhtml”>
\n<head id=”Head1″ runat=”server”>
\n    <title>jQuery UI – 弹出层应用实例 Dialog</title>
\n    <!–black-tie,blitzer,blitzer,dot-luv,excite-bike,hot-sneaks,humanity,mint-choc,redmond,smoothness,south-street,start,swanky-purse,trontastic,ui-darkness,ui-lightness,vader–>
\n    <link rel=”stylesheet” type=”text/css” href=”<%=WebConfig.ResourceServer +”/JsLib/jquery/themes/redmond/style.css”%>” />
\n    <script type=”text/javascript” src=”<% =WebConfig.ResourceServer %>/JsLib/jquery/jquery-min-lastest.js”></script>
\n    <script src=”<% =WebConfig.ResourceServer %>/JsLib/jquery/ui/jquery-ui-all-min-lastest.js”
\n        type=”text/javascript”></script>
\n    <% if (false)
\n       {%><script src=”~/js/jquery-vsdoc-lastest.js” type=”text/javascript”></script>
\n    <% }%>
\n    <script type=”text/javascript”>
\n        /*========== 必须放在头部加载的语句块. 尽量避免使用 ==========*/
\n    </script>
\n    <style type=”text/css”>
\n        </style>
\n</head>
\n<body>
\n    <!–Demo.默认Tab与Ajax Tab –>
\n    <div id=”tabs1″ style=”width:300px;”>
\n        <ul>
\n            <li><a href=”#tabs1-1″>One</a></li>
\n            <!– Ajax Tab –>
\n            <li><a href=”TabData.htm”>Two</a></li>
\n            <li><a href=”#tabs1-3″>Three</a></li>
\n        </ul>
\n        <div id=”tabs1-1″>
\n            <p>Tab1内容</p>
\n        </div>
\n        <div id=”tabs1-3″>
\n            <p>Tab3内容</p>
\n        </div>
\n    </div>
\n    <br />
\n    <br />
\n    <br />
\n    <!–Demo. 可折叠的Tab –>
\n    <div id=”tabs2″ style=”width: 300px;”>
\n        <ul>
\n            <li><a href=”#tabs2-1″>One</a></li>
\n            <li><a href=”#tabs2-2″>Two</a></li>
\n            <li><a href=”#tabs2-3″>Three</a></li>
\n        </ul>
\n        <div id=”tabs2-1″>
\n            <p>Tab1内容</p>
\n        </div>
\n        <div id=”tabs2-2″>
\n            <p>Tab2内容</p>
\n        </div>
\n        <div id=”tabs2-3″>
\n            <p>Tab3内容</p>
\n        </div>
\n    </div>
\n    <br />
\n    <br />
\n    <br />
\n    <!–Demo. 鼠标滑动即切换的Tab –>
\n    <div id=”tabs3″ style=”width: 300px;”>
\n        <ul>
\n            <li><a href=”#tabs3-1″>One</a></li>
\n            <li><a href=”#tabs3-2″>Two</a></li>
\n            <li><a href=”#tabs3-3″>Three</a></li>
\n        </ul>
\n        <div id=”tabs3-1″>
\n            <p>Tab1内容</p>
\n        </div>
\n        <div id=”tabs3-2″>
\n            <p>Tab2内容</p>
\n        </div>
\n        <div id=”tabs3-3″>
\n            <p>Tab3内容</p>
\n        </div>
\n    </div>
\n    <script type=”text/javascript”>
\n        /*==========用户自定义方法==========*/
\n
        /*==========事件绑定==========*/
\n        (function()
\n        {
\n
        });
\n
        /*==========加载时执行的语句==========*/
\n        (function()
\n        {
\n            //默认Tabs
\n            (“#tabs1″).tabs();
\n            //可折叠的Tabs
\n            (“#tabs2″).tabs({
\n                collapsible: true
\n            });
\n            //鼠标滑动即切换的Tabs
\n            (“#tabs3″).tabs({
\n                event: “mouseover”
\n            });
\n        });
\n    </script>
\n</body>
\n</html>

\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }
\n

\n

效果:


\n

1. 默认设置的Tabs, Two标签内容使用Ajax获取


\n

image


\n

image


\n

2.再折叠tab


\n

image


\n

3.鼠标滑动即切换的tab
image


\n

2.要点讲解


\n

(1) 注意Tabs中的HTML结构.


\n

使用ul构建标签. 内容div一定要和标签关联, 没有关联的div将不被处理直接显示.


\n

(2) 使用Ajax可以不指定内容容器, 但是也可以将Ajax内容放入指定容器中.

<li><a href=”hello/world.html” title=”Todo Overview”> … </a></li>
\n
<div id=”Todo_Overview”> … </div>

\n

(3) 活用事件


\n

tab有很多事件:


\n

select, load, show, add, remove, enable, disable


\n

使用这些事件可以完成很多复杂任务. 需要注意事件的签名:

(‘#example’).bind(‘tabsselect’, function(event, ui) {
\n
    // Objects available in the function context:
\n    ui.tab     // anchor element of the selected (clicked) tab
\n    ui.panel   // element, that contains the selected/clicked tab contents
\n    ui.index   // zero-based index of the selected (clicked) tab
\n
});

\n

\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }
\n


\n

第一个是事件对象, 第二个ui对象是传递的额外参数, 我们可以获取tab对象, tab所在容器和tab的索引值.


\n

比如我们可以在事件中做验证:

(‘#example’).tabs({
\n    select: function(event, ui) {
\n        var isValid = … // form validation returning true or false
\n        return isValid;
\n    }
\n});

\n


或者当添加一个tab时立刻切换到选中状态:

var tabs = (‘#example’).tabs({
\n    add: function(event, ui) {
\n        tabs.tabs(‘select’, ‘#’ + ui.panel.id);
\n    }
\n});.csharpcode, .csharpcode pre
\n{
\n	font-size: small;
\n	color: black;
\n	font-family: consolas, “Courier New”, courier, monospace;
\n	background-color: #ffffff;
\n	/*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n	background-color: #f4f4f4;
\n	width: 100%;
\n	margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }
\n

\n


活学活用, 更多应用大家也可以参见tab组件的官方文档:


\n

http://jqueryui.com/demos/tabs

\n

七. 手风琴菜单


\n

使用jQuery UI的accordion组件可以实现手风琴菜单. 效果见下图.


\n

accordion文档地址: http://jqueryui.com/demos/accordion/


\n

1.实例效果


\n

image


\n

2.实例代码

<%@ Page Language=”C#” %>
\n
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
\n<html xmlns=”http://www.w3.org/1999/xhtml”>
\n<head id=”Head1″ runat=”server”>
\n    <title>jQuery UI – 手风琴菜单应用实例 Accordion </title>
\n    <!–black-tie,blitzer,blitzer,dot-luv,excite-bike,hot-sneaks,humanity,mint-choc,redmond,smoothness,south-street,start,swanky-purse,trontastic,ui-darkness,ui-lightness,vader–>
\n    <link rel=”stylesheet” type=”text/css” href=”<%=WebConfig.ResourceServer +”/JsLib/jquery/themes/redmond/style.css”%>” />
\n    <script type=”text/javascript” src=”<% =WebConfig.ResourceServer %>/JsLib/jquery/jquery-min-lastest.js”></script>
\n    <script src=”<% =WebConfig.ResourceServer %>/JsLib/jquery/ui/jquery-ui-all-min-lastest.js”
\n        type=”text/javascript”></script>
\n    <% if (false)
\n       {%><script src=”~/js/jquery-vsdoc-lastest.js” type=”text/javascript”></script>
\n    <% }%>
\n    <script type=”text/javascript”>
\n        /*========== 必须放在头部加载的语句块. 尽量避免使用 ==========*/
\n    </script>
\n    <style type=”text/css”>
\n        body
\n        {
\n            font-size: 12px;
\n        }
\n    </style>
\n</head>
\n<body>
\n    <!– Demo. 默认配置的Accordion菜单 –>
\n    <div style=”width: 300px; float:left; margin-left:20px;”>
\n        <div id=”accordion1″>
\n            <h3><a href=”#”>菜单1</a></h3>
\n            <div>
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n            </div>
\n            <h3><a href=”#”>菜单2</a></h3>
\n            <div>
\n                菜单2的内容
\n            </div>
\n            <h3><a href=”#”>菜单3</a></h3>
\n            <div>
\n                菜单3的内容
\n            </div>
\n        </div>
\n    </div>
\n    <!– Demo. 取消自动高度, 可折叠 –>
\n    <div style=”width: 300px; float: left; margin-left: 20px;”>
\n        <div id=”accordion2″>
\n            <h3><a href=”#”>菜单1</a></h3>
\n            <div>
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n            </div>
\n            <h3><a href=”#”>菜单2</a></h3>
\n            <div>
\n                菜单2的内容
\n            </div>
\n            <h3><a href=”#”>菜单3</a></h3>
\n            <div>
\n                菜单3的内容
\n            </div>
\n        </div>
\n    </div>
\n    <!– Demo. 鼠标滑动触发, 自定义图标 –>
\n    <div style=”width: 300px; float: left; margin-left: 20px;”>
\n        <div id=”accordion3″>
\n            <h3><a href=”#”>菜单1</a></h3>
\n            <div>
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n                菜单1的内容<br />
\n            </div>
\n            <h3><a href=”#”>菜单2</a></h3>
\n            <div>
\n                菜单2的内容
\n            </div>
\n            <h3><a href=”#”>菜单3</a></h3>
\n            <div>
\n                菜单3的内容
\n            </div>
\n        </div>
\n    </div>
\n    <script type=”text/javascript”>
\n        /*==========用户自定义方法==========*/
\n
        /*==========事件绑定==========*/
\n        (function()
\n        {
\n
        });
\n
        /*==========加载时执行的语句==========*/
\n        (function()
\n        {
\n            //默认配置的Accordion菜单
\n            (“#accordion1″).accordion();
\n            //取消自动高度, 可折叠
\n            (“#accordion2″).accordion({
\n                autoHeight:false,
\n                collapsible: true
\n            });
\n            //鼠标滑动触发, 自定义图标
\n            (“#accordion3″).accordion({
\n                icons: {
\n                            header: “ui-icon-circle-arrow-e”,
\n                               headerSelected: “ui-icon-circle-arrow-s”
\n                        },
\n                event: “mouseover”
\n            });
\n        });
\n    </script>
\n</body>
\n</html>

\n

.csharpcode, .csharpcode pre
\n{
\n font-size: small;
\n color: black;
\n font-family: consolas, “Courier New”, courier, monospace;
\n background-color: #ffffff;
\n /*white-space: pre;*/
\n}
\n.csharpcode pre { margin: 0em; }
\n.csharpcode .rem { color: #008000; }
\n.csharpcode .kwrd { color: #0000ff; }
\n.csharpcode .str { color: #006080; }
\n.csharpcode .op { color: #0000c0; }
\n.csharpcode .preproc { color: #cc6633; }
\n.csharpcode .asp { background-color: #ffff00; }
\n.csharpcode .html { color: #800000; }
\n.csharpcode .attr { color: #ff0000; }
\n.csharpcode .alt
\n{
\n background-color: #f4f4f4;
\n width: 100%;
\n margin: 0em;
\n}
\n.csharpcode .lnum { color: #606060; }

\n

3. 关键点讲解


\n

(1) 注意高度设置过小问题


\n

当包含accordion控件的容器高度设计过小时, 在FireFox3中在此容器后面的内容会被accordion控件部分遮盖. 在IE中没有此问题. 经检查是因为容器高度小于菜单高度导致. 所以我们在应用时应当注意不要将容器高度设置过小.


\n

(2) 部分关键属性


\n

autoHeight: 设置是否自动将内容高度设置为容器高度.


\n

collapsible: 设置是否可折叠


\n

一般上面两个配合使用, 以为折叠后肯定会改变菜单高度, 会导致autoHeight设置为true无效.


\n

更多属性和事件使用请参阅官方文档.

\n

八.总结


\n

\n

\n

\n

本章简单介绍了jQueryUI, 并且使用jQuery UI完成了弹出层,tabs,手风琴菜单的应用实例. 使用jQuery UI可以不需要额外寻找插件. 并且实现简单.


\n

但是有些功能是必须使用插件完成的. 下一张讲解两个插件实例: 自动完成插件AutoComplete 和 表单验证插件jQuery Validate.


\n

本章源代码下载:


\n

http://files.cnblogs.com/zhangziqiu/Code-jQueryStudy-10.rar


\n

来源：http://www.cnblogs.com/zhangziqiu

\n