jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful and optimized framework, platform-independent, and widely supported. jqxChart is a lightweight and powerful chart widget written 100% in javascript. It offers many advanced features and supports three different rendering technologies – SVG, HTML5 Canvas & VML. In this article, we will see the toolTipFormatFunction Property in jQWidgets jqxChart.
The toolTipFormatFunction property is a callback function that is used to display the user-defined tooltip text formatting. It is of type function and its default value is undefined.
Syntax:
seriesGroups: [{
type: 'rangecolumn',
columnsGapPercent: 30,
seriesGapPercent: 0,
toolTipFormatFunction: toolTipCustomFormatFn,
series: [
{ dataFieldFrom: 'f1', dataFieldTo: 't1'},
{ dataFieldFrom: 'f2', dataFieldTo: 't2'},
]
}];
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-1.11.1.min.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxchart.core.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdraw.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>
Example 1: The below example illustrates the jQWidgets jqxChart toolTipFormatFunction property.
<!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/jqxchart.core.js">
</script>
<script type="text/javascript"
src="jqwidgets/jqxdraw.js">
</script>
<script type="text/javascript"
src="jqwidgets/jqxdata.js">
</script>
</head>
<body>
<center>
<h1 style="color: green">
GeeksforGeeks
</h1>
<h3>
jQWidgets jqxChart
toolTipFormatFunction property
</h3>
<div id='gfg1'
style="width:400px;
height: 200px" />
</center>
<script type="text/javascript">
$(document).ready(function () {
var data = [
{ Day: 'Monday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Tuesday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Wednesday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Thursday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Friday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Saturday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Sunday', f1: 3, t1: 1, f2: 2, t2: 1 }
];
var toolTipFormatFn = function (val,iIndex,s,grp,cValue) {
var dItem = data[iIndex];
return '<DIV style="text-align:left"><b>Day: ' + cValue +
'</b><br />Begin: ' + val.from +
'<br />End: ' + val.to;
};
var obj = {
title: "Coding Score",
description: "Coding Questions Solved Daily",
enableAnimations: true,
showLegend: true,
source: data,
categoryAxis: {
dataField: 'Day',
showGridLines: true
},
seriesGroups: [{
type: 'rangecolumn',
columnsGapPercent: 30,
seriesGapPercent: 0,
toolTipFormatFunction: toolTipFormatFn,
series: [
{ dataFieldFrom: 'f1', dataFieldTo: 't1' },
{ dataFieldFrom: 'f2', dataFieldTo: 't2' },
]
}]
};
$('#gfg1').jqxChart(obj);
});
</script>
</body>
</html>
Output:
Example 2: The following is another example of the jqxChart toolTipFormatFunction property in jQWidgets.
<!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/jqxchart.core.js">
</script>
<script type="text/javascript"
src="jqwidgets/jqxdraw.js">
</script>
<script type="text/javascript"
src="jqwidgets/jqxdata.js">
</script>
</head>
<body>
<center>
<h1 style="color: green">
GeeksforGeeks
</h1>
<h3>
jQWidgets jqxChart
toolTipFormatFunction property
</h3>
<div id='gfg1'
style="width:400px;
height: 200px" />
</center>
<center>
<input type="button"
id="btn"
value="Click Here"
style="padding: 5px 14px;
margin-top: 15px;">
<br>
<div id="log"></div>
</center>
<script type="text/javascript">
$(document).ready(function () {
var data = [
{ Day: 'Monday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Tuesday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Wednesday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Thursday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Friday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Saturday', f1: 3, t1: 1, f2: 2, t2: 1 },
{ Day: 'Sunday', f1: 3, t1: 1, f2: 2, t2: 1 }
];
var toolTipFormatFn = function (val, iIndex, s, grp, cValue) {
var dItem = data[iIndex];
return '<DIV style="text-align:left"><b>Day: ' + cValue +
'</b><br />Begin: ' + val.from +
'<br />End: ' + val.to;
};
var obj = {
title: "Coding Score",
description: "Coding Questions Solved Daily",
enableAnimations: true,
showLegend: true,
source: data,
categoryAxis: {
dataField: 'Day',
showGridLines: true
},
seriesGroups: [{
type: 'rangecolumn',
columnsGapPercent: 30,
seriesGapPercent: 0,
toolTipFormatFunction: toolTipFormatFn,
series: [
{ dataFieldFrom: 'f1', dataFieldTo: 't1' },
{ dataFieldFrom: 'f2', dataFieldTo: 't2' },
]
}]
};
$('#gfg1').jqxChart(obj);
$('#btn').click(function () {
var ttff = $('#gfg1').jqxChart('toolTipFormatFunction');
if (ttff === null) {
$('#log').text("Null!");
}
else {
$('#log').text("Not null!");
}
});
});
</script>
</body>
</html>
Output:
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