JQuery Treeview example using HTML Ul li elements

To display large number of data we prefer to use Treeview. Let’s take an example where we want to show all those countries & their respective states where we have our customers. In the below jQuery Treeview example I implemented the Same. This Treeview is simply created using Jquery. Using this Treeview you can show any level of data in hierarchy manner.

Jquery is an advanced programming language. For a Jquery professional it is very simple to create a Treeview. Look at the example below here I used only 5 to 6 lines of codes to create a Treeview. The logic I implemented here is so straight forward. In HTML I have ul & li elements which represents data for my Treeview. UL elements inside li elements are sub nodes. Using Jquery document.ready method initially I am tracking all the li elements & inside the li elements which ul elements length is greater than zero I am adding a class “node” for them.

Then in the next loop I am detecting the li elements with class “node” and for their anchor tags click event binding toggle class “active”. To show the expand & collapsible feature smooth I used slideToggle with slow.

JQuery Treeview Example

<!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>
<title>JQuery Treeview example</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('.treeview li').each(function() {
if($(this).children('ul').length > 0) {
$(this).addClass('node');
}
});

$('.treeview li.node > a').click(function() {
$(this).parent().toggleClass('active');
$(this).parent().children('ul').slideToggle('slow');
});
});
</script>
</head>
<body>
<div class="treeview">
<ul>
<li><a href="#">Pakistan</a>
<ul>
<li><a href="#">Faisalabad</a></li>
<li><a href="#">Karachi</a></li>
<li><a href="#">Gujranwala</a></li>
</ul>
</li>
<li><a href="#">India</a>
<ul>
<li><a href="#">Odisha</a>
<ul>
<li><a href="#">Bhubaneswar</a></li>
<li><a href="#">Cuttuck</a></li>
<li><a href="#">Balasore</a>
<ul>
<li><a href="#">Balasore Golei</a></li>
<li><a href="#">MPC College Road</a></li>
<li><a href="#">FM University Road</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">West Bengal</a></li>
</ul>
</li>
<li><a href="#">Nepal</a>
<ul>
<li><a href="#">Kathmandu</a></li>
<li><a href="#">Bharatpur</a></li>
</ul>
</li>
</ul>
</div>
</body>
</html>

Treeview CSS Styles for Ul li elements

ul, #myUL { list-style-type: none; }
#myUL { margin: 0px; padding: 0px; }
.box { cursor: pointer; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; }
.box::before { content: "\2610"; color: black; display: inline-block; margin-right: 7px; }
.check-box::before { content: "\2611"; color: lightblue; }
.nested { display: none; }
.active { display: block; }

Updates

JQuery Treeview Example

Treeview CSS Styles for Ul li elements