jQWidgets jqxComboBox indeterminateIndex() 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 jqxComboBox is used to represent a jQuery combobox widget that contains an input field with autocomplete functionality and a list of selectable items displayed in a drop-down.

The indeterminateIndex() method is used to set the checkbox item state to indeterminate based on their index. This method is applied when ‘checkboxes’ property is set to true. The checkbox uses 0-based indexing. It accepts a single parameter index of Number type and does not return any value.

Syntax:

$('selector').jqxComboBox('indeterminateIndex', index);

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/jqxcolorpicker.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/jqxcombobox.js”></script>

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

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/jqx-all.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcolorpicker.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/jqxcombobox.js">
    </script>
</head>
  
<body>
    <center>
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
  
        <h3>
            jQWidgets jqxComboBox indeterminateIndex() Method
        </h3>
  
        <div id='jqxCB'></div>
        <br>
        <input type="button" id='jqxBtn' 
            style="padding: 5px 20px;"
            value="indeterminateIndex" />
    </center>
  
    <script type="text/javascript">
        $(document).ready(function () {
            var data = [
                "Computer Science",
                "C Programming",
                "C++ Programming",
                "Java Programming",
                "Python Programming",
                "HTML",
                "CSS",
                "JavaScript",
                "jQuery",
                "PHP",
                "Bootstrap"
            ];
  
            $("#jqxCB").jqxComboBox({
                source: data,
                width: '250px',
                animationType: 'slide',
                checkboxes: true
            });
      
            $('#jqxBtn').on('click', function () {
                var popup = $("#jqxCB").jqxComboBox('indeterminateIndex', 4);
            });
        });
    </script>
</body>
  
</html>