jQuery UI consists of GUI widgets, visual effects, and themes implemented using the jQuery JavaScript Library. jQuery UI is great for building UI interfaces for the webpages. It can be used to build highly interactive web applications or can be used to add widgets easily.
The jQuery UI Sortable start event is used to trigger when sorting the list items starts.
Syntax:
Initialize the sortable widget with the start callback function.
$(".selector").selectable({
start: function( event, ui ) {}
});
Bind an event listener to the sort start event.
$( ".selector" ).on( "sortstart", function( event, ui ) {} );Parameters:
- event: This event is triggered when the sort starts.
-
ui: This is of type object with below-given options.
- helper: The jQuery object representing the sorted helper.
- item: The jQuery object represents the current dragged item.
- offset: The current absolute position of the helper object which is represented as { top, left }.
- position: The current position of the helper object which is represented as { top, left }.
- originalPosition: The original position of the helper object which is represented as { top, left }.
- sender: The sortable item of type jQuery object coming from moving from one sortable to another.
- placeholder: The element which is used as a placeholder. This is of type jQuery object.
CDN Link: First, add jQuery UI scripts needed for your project.
<link rel=”stylesheet” href=”https://code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css”>
<script src=”https://code.jquery.com/jquery-1.12.4.js”></script>
<script src=”https://code.jquery.com/ui/1.12.1/jquery-ui.js”></script>
Example: The following example demonstrates the sortable start event for jQuery UI widget.
<!DOCTYPE html> <html lang="en">
<head>
<meta charset="utf-8">
<link rel="stylesheet"
href=
</script>
<script src=
</script>
<style>
#sortable {
list-style-type: none;
width: 50%;
}
#sortable li {
margin: 10px 0;
padding: 0.5em;
font-size: 25px;
height: 20px;
}
</style>
<script>
$(function () {
$("#sortable").sortable({
start: function (event, ui) {
$(".res").html("Sortable Event Started.");
},
stop: function (event, ui) {
$(".res").html("Sortable Event Stopped.");
}
});
});
</script>
</head>
<body>
<center>
<h1 style="color: green;">
GeeksforGeeks
</h1>
<h4>jQuery UI Sortable start Event</h4>
<ul id="sortable">
<li class="ui-state-default">BCD</li>
<li class="ui-state-default">CAB</li>
<li class="ui-state-default">BAC</li>
<li class="ui-state-default">BCA</li>
<li class="ui-state-default">ABC</li>
</ul>
<div class="res"></div>
</center>
</body>
</html>
|
Output:
Reference: https://api.jqueryui.com/sortable/#event-start