<!DOCTYPE html>
<
html
lang
=
"en"
>
<
head
>
<
link
rel
=
"stylesheet"
href
=
"jqwidgets/styles/jqx.base.css"
type
=
"text/css"
/>
<
script
type
=
"text/javascript"
src
=
"scripts/jquery-1.11.1.min.js"
></
script
>
<
script
type
=
"text/javascript"
src
=
"jqwidgets/jqxcore.js"
></
script
>
<
script
type
=
"text/javascript"
src
=
"jqwidgets/jqx-all.js"
></
script
>
<
script
type
=
"text/javascript"
src
=
"jqwidgets/jqxbuttons.js"
></
script
>
<
script
type
=
"text/javascript"
src
=
"jqwidgets/jqxscrollbar.js"
></
script
>
<
script
type
=
"text/javascript"
src
=
"jqwidgets/jqxpanel.js"
></
script
>
<
script
type
=
"text/javascript"
src
=
"jqwidgets/jqxtree.js"
></
script
>
<
style
>
h1,
h3 {
text-align: center;
}
#jqxTree {
width: 100%;
margin: 0 auto;
}
</
style
>
</
head
>
<
body
>
<
h1
style
=
"color: green;"
>
GeeksforGeeks
</
h1
>
<
h3
>
jQWidgets jqxTree collapse Event
</
h3
>
<
div
id
=
'jqxTree'
>
<
ul
>
<
li
item-selected
=
'true'
>
GeeksforGeeks
</
li
>
<
li
>Programming
<
ul
>
<
li
>C</
li
>
<
li
>C++</
li
>
<
li
>Java</
li
>
<
li
>Python</
li
>
</
ul
>
</
li
>
<
li
>Web Technology
<
ul
>
<
li
>HTML</
li
>
<
li
>CSS</
li
>
<
li
>JavaScript</
li
>
<
li
>jQuery</
li
>
<
li
>PHP</
li
>
</
ul
>
</
li
>
</
ul
>
</
div
>
<
script
type
=
"text/javascript"
>
$(document).ready(function() {
$('#jqxTree').jqxTree({
width: '350px',
height: '250px'
});
});
$('#jqxTree').on('collapse', function (event) {
alert("Tree Items Collapsed!")
});
</
script
>
</
body
>
</
html
>