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Tooltip in JavaScript Range Navigator control

26 Oct 2021 / 2 minutes to read

The tooltip for sliders are supported by the Range Selector. Sliders are used in the Range Selector to select data from a specific range. The tooltip displays the selected start and end values.

Customization

Tooltip can be customized using the following properties:

  • enable - Customizes the visibility of the tooltip.
  • fill - Customizes the background color of the tooltip.
  • opacity - Customizes the opacity of the tooltip.
  • textStyle - Customizes the font size, color, family, style, weight, alignment, and overflow of the tooltip.
Source
Preview
index.ts
index.html
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import { RangeNavigator, AreaSeries,  DateTime, RangeTooltip}  from "@syncfusion/ej2-charts";
RangeNavigator.Inject(AreaSeries, DateTime, RangeTooltip);
import { datasrc } from "./datasource.ts";

let range: RangeNavigator = new RangeNavigator({
valueType: 'DateTime',
value: [new Date('2017-09-01'), new Date('2018-02-01')],
tooltip: { enable: true, displayMode: 'Always', fill:'red', opacity: 0.6, textStyle:{ style: 'Italic', color:'blue', size:'12px'} },
labelFormat: 'MMM-yy',
series: [{
            dataSource: datasrc, xName: 'x', yName: 'y', type: 'Area', width: 2,
        }],
}, '#element');
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<!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' style="margin-top: 125px">
        <div id='element'></div>
    </div>
</body>

</html>

Label Format

The labelFormat property in the tooltip is used to format and parse the date to all globalize formats.

Source
Preview
index.ts
index.html
Copied to clipboard
import { RangeNavigator, AreaSeries,  DateTime, RangeTooltip}  from "@syncfusion/ej2-charts";
RangeNavigator.Inject(AreaSeries, DateTime, RangeTooltip);
import { datasrc } from "./datasource.ts";

let range: RangeNavigator = new RangeNavigator({
valueType: 'DateTime',
value: [new Date('2017-09-01'), new Date('2018-02-01')],
tooltip: { enable: true, displayMode: 'Always', labelFormat: 'y/M/d' },
series: [{
            dataSource: datasrc, xName: 'x', yName: 'y', type: 'Area', width: 2,
        }],
}, '#element');
Copied to clipboard
<!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' style="margin-top: 125px">
        <div id='element'></div>
    </div>
</body>

</html>

The following table shows the results of applying some common date and time formats to the labelFormat property.

Label Value Label Format Property Value Result Description
new Date(2000, 03, 10) EEEE Monday The Date is displayed in day format
new Date(2000, 03, 10) yMd 04/10/2000 The Date is displayed in month/date/year format
new Date(2000, 03, 10) MMM Apr The Shorthand month for the date is displayed
new Date(2000, 03, 10) hm 12:00 AM Time of the date value is displayed as label
new Date(2000, 03, 10) hms 12:00:00 AM The Label is displayed in hours:minutes:seconds format