expand
Fires when the user expands the content.
Example
<div id="home" data-role="view" data-init="onInit">
<div id="collapsible" data-role="collapsible" data-expand="expandHandler">
<h2>Header</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>
</div>
<script>
var app = new kendo.mobile.Application();
function expandHandler() {
/* The result can be observed in the DevTools(F12) console of the browser. */
console.log("expand");
}
</script>