Labels in EJ2 TypeScript Range navigator control

8 May 202313 minutes to read

Multilevel labels

The labelIntersectAction property is used to avoid overlapping of labels. The following code sample shows the setting of labelIntersectAction property to Hide.

index.ts
index.html
import { RangeNavigator, DateTime, RangeTooltip } from '@syncfusion/ej2-charts';
RangeNavigator.Inject(DateTime, RangeTooltip);

let data: object[] = [];
let value: number = 0; let point: object = {};
for (let j: number = 1; j < 1090; j++) {
    value += (Math.random() * 10 - 5);
    value = value < 0 ? Math.abs(value) : value;
    point = { x: new Date(2000, 0, j), y: value, z: value + 10 };
    data.push(point);
}
let range: RangeNavigator = new RangeNavigator(
    {
        labelPosition: 'Outside',
        tooltip: { enable: true },
        valueType: 'DateTime',
        intervalType: 'Quarter',
        enableGrouping: true,
        value: [new Date(2001, 0), new Date(2002, 0)],
        dataSource: data,
        xName: 'x',
        yName: 'y'
    }, '#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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container' style="margin-top: 125px">
        <div id='element'></div>
    </div>
</body>

</html>

Grouping

The second level axis labels can be grouped using “groupBy” property with the following interval types:

Auto
Years
Quarter
Months
Weeks
Days
Hours
Minutes
Seconds

index.ts
index.html
import { RangeNavigator, DateTime, RangeTooltip } from '@syncfusion/ej2-charts';
RangeNavigator.Inject(DateTime, RangeTooltip);

let data: object[] = [];
let value: number = 0; let point: object = {};
for (let j: number = 1; j < 1090; j++) {
    value += (Math.random() * 10 - 5);
    value = value < 0 ? Math.abs(value) : value;
    point = { x: new Date(2000, 0, j), y: value, z: value + 10 };
    data.push(point);
}
let range: RangeNavigator = new RangeNavigator(
    {
        labelPosition: 'Outside',
        tooltip: { enable: true },
        valueType: 'DateTime',
        intervalType: 'Quarter',
        enableGrouping: true,
        groupBy: 'Years',
        value: [new Date(2001, 0), new Date(2002, 0)],
        dataSource: data,
        xName: 'x',
        yName: 'y'
    }, '#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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container' style="margin-top: 125px">
        <div id='element'></div>
    </div>
</body>

</html>

Smart labels

The labelIntersectAction property is used to avoid overlapping of labels. The following code sample shows the setting of labelIntersectAction property to Hide.

index.ts
index.html
import { RangeNavigator, StepLineSeries, DateTime } from "@syncfusion/ej2-charts";
RangeNavigator.Inject(StepLineSeries, DateTime);
import { datasrc } from "./datasource.ts";

let range: RangeNavigator = new RangeNavigator({
    valueType: 'DateTime',
    labelIntersectAction: 'Hide',
    labelFormat: 'y/M/d',
    value: [new Date("2017-08-13"), new Date("2017-12-28")],
    series: [{
        dataSource: datasrc, xName: 'x', yName: 'y', type: 'StepLine', width: 2,
    }],
}, '#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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container' style="margin-top: 125px">
        <div id='element'></div>
    </div>
</body>

</html>

Label positioning

By default, the labels can be placed outside the Range Selector. It can also be placed inside the Range Selector using the labelPosition property.

index.ts
index.html
import { RangeNavigator, StepLineSeries, DateTime } from "@syncfusion/ej2-charts";
RangeNavigator.Inject(StepLineSeries, DateTime);
import { datasrc } from "./datasource.ts";

let range: RangeNavigator = new RangeNavigator({
    valueType: 'DateTime',
    labelPosition: 'Inside',
    value: [new Date("2017-08-13"), new Date("2017-12-28")],
    series: [{
        dataSource: datasrc, xName: 'x', yName: 'y', type: 'StepLine', width: 2,
    }],
}, '#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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container' style="margin-top: 125px">
        <div id='element'></div>
    </div>
</body>

</html>

Labels customization

The font size, color, family, etc. can be customized using the labelStyle setting.

index.ts
index.html
import { RangeNavigator, DateTime } from '@syncfusion/ej2-charts';
import { GetDateTimeData } from './datasource.ts';
RangeNavigator.Inject(DateTime);

let range: RangeNavigator = new RangeNavigator(
    {
        valueType: 'DateTime',
        intervalType: 'Months',
        labelFormat: 'MMM',
        labelStyle: { color: 'red', size: '10px' },
        value: [new Date(2018, 5, 1), new Date(2018, 6, 1)],
        dataSource: GetDateTimeData(new Date(2018, 0, 1), new Date(2019, 0, 1)),
        xName: 'x', yName: 'y'
    }, '#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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container' style="margin-top: 125px">
        <div id='element'></div>
    </div>
</body>

</html>