jQWidgets jqxTree ensureVisible() 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 ensureVisible() method is used to ensure the visibility of an element. It accepts single parameter item of object type and it does not return any value.

Syntax:

$('Selector').jqxTree('ensureVisible', 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 ensureVisible() 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 ensureVisible() 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="Ensure Visible" 
            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() {
            var element = $("#prog")[0];
            $('#jqxTree').jqxTree('ensureVisible', element);
            $('#jqxTree').jqxTree('selectItem', element);
        });
    </script>
</body>

</html>

Output:

Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxtree/jquery-tree-api.htm

jQWidgets jqxTree ensureVisible() Method

ashokjaiswal

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jQWidgets jqxTree ensureVisible() Method

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