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jQWidgets jqxDropDownList loadFromSelect() Method

  • Last Updated : 13 Sep, 2021

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:

HTML




<!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:

Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxdropdownlist/jquery-dropdownlist-api.htm


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