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 jqxKnob is used for representing a jQuery plugin having a round shape and displaying a draggable indicator within a range of the specified values. This API can also be used in a table or matrix for showing the relative value of a field in a range of values in the specified data region. This API supports HTML5, SVG, & VML rendering.
The progressBar property is used for setting or getting the progressBar property for the specified jqxKnob. It can be of Object/Array of Objects type & its default value is null.
Syntax:
- For setting the progressBar property:
$('#jqxKnob').jqxKnob({progressBar: {
style: {
fill: 'yellow',
stroke: 'black'
},
size: '8%',
offset: '61%',
background: { fill: 'black' }
}});
- For getting the progressBar property:
var allowValueChangeOnClick =
$('#jqxKnob').jqxKnob('progressBar');
There are several properties of Knob’s progressBar property, that are given below:
- offset: It is used to specify the progress bar’s offset.
- style: It is used to specify the style of the progressBar.
- background: It is used to specify the background style of the progressBar.
- size: It is used to specify the progress bar’s size.
- ranges: This is an array that specifies the progress bar’s ranges.
Linked Files: Download jQWidgets from the given 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.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/jqxdraw.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxknob.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxnumberinput.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqx-all.js”></script>
Example: The below example illustrates the jQWidgets jqxKnob progressBar property.
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.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/jqxdraw.js" >
</ script >
< script type = "text/javascript"
src = "jqwidgets/jqxknob.js" >
</ script >
< script type = "text/javascript"
src = "jqwidgets/jqxnumberinput.js" >
</ script >
< script type = "text/javascript"
src = "jqwidgets/jqx-all.js" >
</ script >
</ head >
< body >
< center >
< h1 style = "color:green;" >
GeeksforGeeks
</ h1 >
< h3 >
jQWidgets jqxKnob progressBar Property
</ h3 >
< div id = 'jqx_Knob' >
</ div >
< script type = "text/javascript" >
$(document).ready(function () {
$('#jqx_Knob').jqxKnob({
value: 5,
min: 0,
max: 50,
width: 300,
startAngle: 0,
endAngle: 360,
snapToStep: true,
marks: {
colorRemaining: { color: 'red' },
colorProgress: { color: 'green' },
offset: '70%',
thickness: 5,
size: '4%'
},
labels: {
offset: '85%',
step: 5
},
progressBar: {
style: {
fill: 'yellow',
stroke: 'black'
},
size: '8%',
offset: '61%',
background: { fill: 'black' }
},
pointer: {
type: 'arrow',
style: { fill: 'green' },
size: '68%',
offset: '29%',
thickness: 15
}
});
});
</ script >
</ center >
</ body >
</ html >
|
Output:

Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxknob/jquery-knob-api.htm?search=
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Last Updated :
28 Nov, 2021
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