jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful, optimized, platform-independent, and widely supported framework. The jqxDropDownList widget is a jQuery drop-down list that contains a list of selectable items displayed in the drop-down list.
The loadFromSelect() method is used to load the list items from a 'select' tag. It accepts a single parameter id of String type and it does not return any value.
Syntax:
$("Selector").jqxDropDownList('loadFromSelect', 'select');
Linked Files: Download jQWidgets from the link https://www.jqwidgets.com/download/ In the HTML file, locate the script files in the downloaded folder.
<link rel="stylesheet" href="jqwidgets/styles/jqx.base.css" type="text/css" /> <link rel="stylesheet" href="jqwidgets/styles/jqx.energyblue.css"> <script type="text/javascript" src="scripts/jquery-1.11.1.min.js"></script> <script type="text/javascript" src="jqwidgets/jqx-all.js"></script> <script type="text/javascript" src="jqwidgets/jqxcore.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/jqxlistbox.js"></script> <script type="text/javascript" src="jqwidgets/jqxdropdownlist.js"></script>
The below example illustrates the jqxDropDownList loadFromSelect() method in jQWidgets.
Example:
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href=
"jqwidgets/styles/jqx.base.css" type="text/css" />
<link rel="stylesheet" href=
"jqwidgets/styles/jqx.energyblue.css">
<script type="text/javascript"
src="scripts/jquery-1.11.1.min.js"></script>
<script type="text/javascript"
src="jqwidgets/jqx-all.js"></script>
<script type="text/javascript"
src="jqwidgets/jqxcore.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/jqxlistbox.js"></script>
<script type="text/javascript"
src="jqwidgets/jqxdropdownlist.js"></script>
</head>
<body>
<center>
<h1 style="color: green;">
GeeksforGeeks
</h1>
<h3>
jQWidgets jqxDropDownList loadFromSelect() Method
</h3>
<div id='jqxDDL'></div>
<select id="select">
<option>Computer Science</option>
<option>C Programming</option>
<option>C++ Programming</option>
<option>Java Programming</option>
<option>Python Programming</option>
<option>HTML</option>
<option>CSS</option>
<option>JavaScript</option>
<option>jQuery</option>
<option>PHP</option>
<option>Bootstrap</option>
</select>
<input id="jqxBtn" type="button"
value="Load From Select"
style="padding: 5px 15px; margin-top: 50px;">
</center>
<script type="text/javascript">
$(document).ready(function() {
$("#jqxDDL").jqxDropDownList({
theme: 'energyblue',
width: '200px',
height: '25px',
selectedIndex: 2
});
var flag = false;
$("#jqxBtn").click(function() {
$("#jqxDDL").jqxDropDownList('loadFromSelect', 'select');
});
$("#jqxDDL").on('select', function(event) {
if (event.args && !updating) {
$("#select").val(event.args.item.value);
}
});
$("#select").on('change', function(event) {
updating = true;
var index = $("#select")[0].selectedIndex;
$("#jqxDDL").jqxDropDownList('selectIndex', index);
$("#jqxDDL").jqxDropDownList('ensureVisible', index);
updating = false;
});
});
</script>
</body>
</html
Output: