jQWidgets jqxListBox indeterminateIndex() Method

Last Updated : 14 Sep, 2021

Introduction: 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 jqxListBox is used to illustrate a jQuery ListBox widget which comprises a list of electable elements.

The indeterminateIndex() method is used to indeterminate an item in the stated list whenever the checkboxes property value is set to true. Moreover, the index that is to be used here is based on zero, in other words, in order to indeterminate the first item of the list, the ‘indeterminateIndex‘ method must be invoked along with index zero. It does not return anything.

Syntax:

$("#jqxListBox").jqxListBox('indeterminateIndex', Index);

Parameters: This method has a single parameter as mentioned above and described below:

Index: It is the stated index of type number.

Linked Files: Download jQWidgets from the link. 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/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>

Example: The below example illustrates the jqxListBox indeterminateIndex() method in jQWidgets.

HTML

<html> 
    <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/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> 
    </head> 
    <body> 
        <center> 
            <h1 style="color: green;"> 
                GeeksforGeeks 
            </h1> 
  
            <h3> 
                jQWidgets jqxListBox indeterminateIndex() Method 
            </h3> 
  
            <div id="jqxLB"></div> 
            <br /> 
            <input type="button" id="jqxBtn" 
                   style="padding: 5px 20px;"
                   value="Indeterminate second index" /> 
        </center> 
        <script type="text/javascript"> 
            $(document).ready(function () { 
                var data = [ 
                  "Computer Science", 
                  "C Programming", 
                  "C++ Programming", 
                  "Java Programming", 
                  "Python Programming", 
                  "HTML",  
                  "CSS",  
                  "JavaScript"]; 
  
                $("#jqxLB").jqxListBox({ 
                    source: data, 
                    width: "200px", 
                    height: "100px", 
                    checkboxes: true 
                }); 
  
                $("#jqxBtn").on("click", function () { 
                    $("#jqxLB").jqxListBox("indeterminateIndex", 1); 
                }); 
            }); 
        </script> 
    </body> 
</html>