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: