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Tooltip in JavaScript Accumulation Chart control

Tooltip for the accumulation chart can be enabled by using the enable property.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationTooltip } from '@syncfusion/ej2-charts';
AccumulationChart.Inject(AccumulationTooltip);
let accChart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: [{ x: 'Jan', y: 13, text: 'Jan: 13' }, { x: 'Feb', y: 13, text: 'Feb: 13' },
                         { x: 'Mar', y: 17, text: 'Mar: 17' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' }],
            xName: 'x',
            yName: 'y'
        }],
        tooltip:{enable: true}
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Note: To use tooltip feature, inject the AccumulationTooltip using the Chart.Inject(AccumulationTooltip) method.

We can specify header for the tooltip using header property.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationTooltip } from '@syncfusion/ej2-charts';
import { labelData } from './datasource.ts';
AccumulationChart.Inject(AccumulationTooltip);
let accChart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: labelData,
            xName: 'x',
            yName: 'y'
        }],
        tooltip:{enable: true, header:"Pie Chart"}
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Format

By default, tooltip shows information of x and y value in points. In addition to that, you can show more information in tooltip. For example the format ${series.name} ${point.x} shows series name and point x value.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationTooltip } from '@syncfusion/ej2-charts';
import { labelData } from './datasource.ts';
AccumulationChart.Inject(AccumulationTooltip);
let accChart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: labelData,
            xName: 'x',
            yName: 'y'
        }],
        tooltip:{enable: true, format: '${point.x} : <b>${point.y}%</b>' }
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Tooltip Format

Any HTML element can be displayed in the tooltip by using the template property.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationTooltip } from '@syncfusion/ej2-charts';
import { labelData } from './datasource.ts';
AccumulationChart.Inject(AccumulationTooltip);
let accChart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: labelData,
            xName: 'x',
            yName: 'y'
        }],
        tooltip:{
            enable: true,
            template:  "<div id='templateWrap' style='background-color:#bd18f9;border-radius: 3px; float: right;padding: 2px;line-height: 20px;text-align: center;'>"+
        "<img src='https://ej2.syncfusion.com/demos/src/chart/images/sunny.png' />" +
        "<div style='color:white; font-family:Roboto; font-style: medium; fontp-size:14px;float: right;padding: 2px;line-height: 20px;text-align: center;padding-right:6px'><span>${y}</span></div></div>" }
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Customization

The fill and border properties are used to customize the background color and border of the tooltip respectively. The textStyle property in the tooltip is used to customize the font of the tooltip text.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationTooltip, IAccTooltipRenderEventArgs } from '@syncfusion/ej2-charts';
import { labelData } from './datasource.ts';
AccumulationChart.Inject(AccumulationTooltip);
let accChart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: labelData,
            xName: 'x',
            yName: 'y'
        }],
        tooltip:{
            enable: true,
             format: '${series.name} ${point.x} : ${point.y}',
            //fill for tooltip
            fill: '#7bb4eb',
            //border for tooltip
            border: {
                width: 2,
                color: 'grey'
        }
        }
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

To customize individual tooltip

Using tooltipRender event, you can customize a tooltip for particular point. event, you can customize a tooltip for particular point.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationTooltip, IAccTooltipRenderEventArgs } from '@syncfusion/ej2-charts';
import { labelData } from './datasource.ts';
AccumulationChart.Inject(AccumulationTooltip);
let accChart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: labelData,
            xName: 'x',
            yName: 'y'
        }],
        tooltip:{
            enable: true
        },
         tooltipRender: (args: IAccTooltipRenderEventArgs) => {
              if (args.point.index === 3) {
              args.text = args.point.x + '' + ':' + args.point.y + '' + ' ' +'customtext';
              args.textStyle.color = '#f48042';
        }
           }
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>