12
所以，我有一個導航列表，並有子列表和子列表。在jQuery中向上移動多個父母 - 更有效的方式？
基本上，導航是默認情況下摺疊，但如果人們點擊一個子列表中的頁面，我想顯示父列表。如果它是子列表的子列表，則需要顯示父列表。我已經設置了它，但是，我不喜歡將5 .parent（）。parent（）向上遍歷以展開列表。有沒有更高效的方法？
的HTML：
<div id="lesson-sidebar">
<ul>
<li><a href="index.html">Welcome to Beat Basics and Beyond</a></li>
<li><a href="table-of-contents.html">What's in this course?</a></li>
<li><a href="defining-your-beat.html" class="active">Defining Your Beat</a>
<ul>
<li><a href="boundaries-of-your-beat.html">Boundaries of Your Beat</a></li>
<li><a href="the-beat-description.html">The Beat Description</a></li>
<li><a href="build-your-own-beat-description.html"><span class="ital">Activity:</span> Build Your Own Beat Description</a></li>
</ul>
</li>
<li><a href="getting-started.html">Getting Started</a>
<ul>
<li><a href="debrief-your-predecessor.html">Debrief Your Predecessor</a></li>
<li><a href="predecessor-top-five-tips.html"><span class="ital">Activity:</span> List The Top Five Tips From Your Predecessor</a></li>
<li><a href="covering-your-beat-with-the-internet.html">Covering Your Beat With The Internet</a></li>
<li><a href="get-in-the-car-and-go.html">Get in the Car and Go</a></li>
<li><a href="mapping-your-beat.html">Mapping Your Beat</a></li>
<li><a href="read-the-clips.html">Read the Clips</a></li>
<li><a href="activity-dissect-this-clip.html"><span class="ital">Activity:</span> Dissect This Clip</a></li>
<li><a href="writing-your-first-article.html">Writing Your First Article</a></li>
<li><a href="starting-cold-on-the-beat.html">Starting Cold on the Beat</a></li>
</ul>
</li>
<li><a href="working-with-sources.html">Working With Sources</a>
<ul>
<li><a href="finding-sources.html">Finding Sources</a></li>
<li><a href="diversify-your-sources.html">Diversify Your Sources</a></li>
<li><a href="prospecting-for-stories-and-sources.html">Prospecting for Stories and Sources</a></li>
<li><a href="building-relationships.html">Building Relationships</a></li>
<li><a href="going-off-the-record.html">Going Off the Record</a></li>
</ul>
</li>
<li><a href="developing-resources.html">Developing Resources to Help You on the Beat</a>
<ul>
<li><a href="develop-a-calendar-of-events.html">Develop a Calendar of Events</a></li>
<li><a href="build-your-library.html">Build Your Library</a></li>
<li><a href="learn-the-open-record-laws.html">Learn the Open Record Laws</a></li>
</ul>
</li>
<li><a href="extra-resources.html">Extra Resources</a>
<ul>
<li><a href="beat-breakdown-tool.html">Beat Breakdown Tool</a></li>
<li><a href="links-library.html">Links Library</a>
<ul>
<li><a href="general-resources-for-any-beat.html">General Resources for Any Beat</a></li>
<li><a href="courts-and-criminal-justice-links.html">Courts and Criminal Justice Links</a></li>
<li><a href="education-resources.html">Education Resources</a></li>
<li><a href="local-government-links.html">Local Government Links</a></li>
<li><a href="neighborhood-or-suburban-links.html">Neighborhood or Suburban Links</a></li>
<li><a href="police-and-public-safety-links.html">Police and Public Safety Links</a></li>
<li><a href="reporter-organizations.html">Reporter Organizations</a></li>
</ul>
</li>
<li><a href="additional-reading.html">Additional Reading</a></li>
</ul>
</li>
<li><a href="final-thoughts.html">Final Thoughts</a></li>
</ul>
jQuery的：
function toggleSubmenu() {
if ($(this).hasClass('submenu-hidden')) {
$(this).parent().children('ul').slideToggle();
$(this).removeClass().addClass('submenu-visible');
} else if ($(this).hasClass('submenu-visible')) {
$(this).parent().children('ul').slideToggle();
$(this).removeClass().addClass('submenu-hidden');
}
}
$('#lesson-sidebar ul ul').hide();
$('#lesson-sidebar ul ul ul').hide();
$('#lesson-sidebar ul:first-child').attr('id', 'rootlist');
$('#lesson-sidebar ul li:has("ul")').prepend('<span class="submenu-hidden"></span>').css('list-style','none');
$('#lesson-sidebar ul li a').each(
function() {
if ($(this).hasClass('active')) {
// if it is a UL
var length = $(this).parent().find("ul").length;
alert(length);
if (length == 0) {
if ($(this).parent().parent().parent().children('span').hasClass('submenu-hidden')) {
$(this).parent().parent().parent().children('ul').show();
$(this).parent().parent().parent().children('span').removeClass('submenu-hidden').addClass('submenu-visible');
}
if ($(this).parent().parent().parent().parent().parent().children('span').hasClass('submenu-hidden')) {
$(this).parent().parent().parent().parent().parent().children('ul').show();
$(this).parent().parent().parent().parent().parent().children('span').removeClass('submenu-hidden').addClass('submenu-visible');
}
}
if (length == 1) {
$(this).parent().find('ul').slideToggle();
$(this).parent().children('span').removeClass('submenu-hidden').addClass('submenu-visible');
}
}
}
);
$('ul#rootlist > li span, ul#rootlist li ul li > span').bind('click', toggleSubmenu);
任何及所有幫助是majorly讚賞。
這差不多就是我要找的。父母的事情是驚人的！我找到了一個使用eq方法的解決方案，但這種方法更加簡潔。 唯一的一點是，它不是li.active，它是a.active，所以我仍然試圖讓兄弟姐妹展示。 非常感謝：D – 2010-01-12 23:48:50
我只是改變它與a.active一起工作。請記住投票並點擊答案旁邊的綠色複選標記。 :) – 2010-01-12 23:56:55
檢查並投票。你的快速和明確的反應是一個巨大的幫助。 – 2010-01-13 01:34:14