Toggle Ordered/ Unordered List Using jQuery

So let us say you have a tree like structure created with a bunch of <ul> and <li>. Now you come across a requirement where you need to expand and collapse these sections. Let us see how to do this using jQuery (tested on IE and Firefox)

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title></title>

    <style type="text/css">

        .clsUL

            cursor:hand;

    </style>

    <script src="Scripts/jquery-1.2.6.js" type="text/javascript">

    </script>

    <script type="text/javascript">

        $(document).ready(function(){

        $('#unord li').click(function() {

                    $(this).children('ul').slideToggle("slow");

});

});

    </script>

</head>

<body>

    <form id="form1" runat="server">

    <div>

    <ul id="unord" class="clsUL">

        <li>Client-Side Languages

            <ul>

                <li>

                    jQuery

                </li>

                <li>

                    JavaScript

                </li>

                <li>

                    JScript

                </li>

            </ul>

        </li>

        <li>Server-Side Languages

            <ul>

                <li>

C#

                </li>

                <li>

                    VB.NET

                </li>

                <li>

                    Others

                </li>

            </ul>

        </li>

    </ul>

    </div>

    </form>

</body>

</html>

The code shown above, collapses and expands the section of <li> kept inside <ul>. Needless to say, jQuery rocks!

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About The Author

Suprotim Agarwal, ASP.NET Architecture MVP works as an Architect Consultant and provides consultancy on how to design and develop Web applications.

Suprotim is also the founder and primary contributor to DevCurry, DotNetCurry and SQLServerCurry. He has also written an EBook 51 Recipes using jQuery with ASP.NET Controls.

Follow him on twitter @suprotimagarwal

comments

3 Responses to "Toggle Ordered/ Unordered List Using jQuery"

Ramesh said...

January 12, 2009 10:42 PM

Very very helpful.Thanks.
Tim said...

November 3, 2010 12:48 PM

By far the easiest to use i've seen. 1 question - how to collapse all at initial page load?
Anonymous said...

March 15, 2011 8:12 AM

I'd also like to know how to collapse all on initial load.