jQWidgets jqxTree refresh() Method

Last Updated : 13 Oct, 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 jqxTree represents a jQuery widget that is used to display a hierarchical collection of items. To display the collection of items, we can populate from ‘UL’ or by using its ‘source’ property.

The refresh() method is used to refresh the jqxTree widget. It does not accept any parameter and does not return any value.

Syntax:

$('Selector').jqxTree('refresh');

Linked Files: Download jQWidgets from the given 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” />
<script type=”text/javascript” src=”scripts/jquery-1.11.1.min.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqx-all.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/jqxpanel.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxtree.js”></script>

The below example illustrates the jQWidgets jqxTree refresh() method.

Example:

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <link rel="stylesheet" href= 
    "jqwidgets/styles/jqx.base.css" type="text/css" /> 
    <script type="text/javascript" 
        src="scripts/jquery-1.11.1.min.js"></script> 
    <script type="text/javascript" 
        src="jqwidgets/jqxcore.js"></script> 
    <script type="text/javascript" 
        src="jqwidgets/jqx-all.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/jqxpanel.js"></script> 
    <script type="text/javascript" 
        src="jqwidgets/jqxtree.js"></script> 
  
    <style> 
        h1, 
        h3 { 
            text-align: center; 
        } 
          
        #jqxTree { 
            width: 100%; 
            margin: 0 auto; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color: green;"> 
        GeeksforGeeks 
    </h1> 
  
    <h3> 
        jQWidgets jqxTree refresh() Method 
    </h3> 
  
    <div id='jqxTree'> 
        <ul> 
            <li item-selected='true'> 
                GeeksforGeeks 
            </li> 
  
            <li id="prog">Programming 
                <ul> 
                    <li>C</li> 
                    <li>C++</li> 
                    <li>Java</li> 
                    <li>Python</li> 
                </ul> 
            </li> 
  
            <li>Web Technology 
                <ul> 
                    <li>HTML</li> 
                    <li>CSS</li> 
                    <li>JavaScript</li> 
                    <li>jQuery</li> 
                    <li>PHP</li> 
                </ul> 
            </li> 
        </ul> 
    </div> 
  
    <center> 
        <input type="button" id="jqxBtn" 
            value="Refresh the Widget" 
            style="padding: 5px 15px; margin-top: 20px;"> 
    </center> 
  
    <script type="text/javascript"> 
        $(document).ready(function() { 
            $('#jqxTree').jqxTree({ 
                width: '350px', 
                height: '250px' 
            }); 
        }); 
  
        $('#jqxBtn').click(function() { 
            $('#jqxTree').jqxTree('refresh'); 
            alert("Refresh the jqxTree Widget"); 
        }); 
    </script> 
</body> 
  
</html>