jQWidgets jqxTree expandItem() Method
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 expandItem() method is used to expand a jqxTree widget item by passing an element as parameter. It accepts a single parameter item of object type and does not return any value.
Syntax:
$('Selector').jqxTree('expandItem', item);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 expandItem() 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 expandItem() 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="Expand Items" style="padding: 5px 15px; margin-top: 20px;"> </center> <script type="text/javascript"> $(document).ready(function() { $('#jqxTree').jqxTree({ width: '350px', height: '250px' }); }); $("#jqxBtn").on('click', function() { $('#jqxTree').jqxTree('expandItem', $("#prog")[0]); }); </script></body> </html> |
Output:
Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxtree/jquery-tree-api.htm
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