Globalization in EJ2 TypeScript Daterangepicker control

4 Aug 202314 minutes to read

Globalization is the combination of internalization and localization. You can adapt the component to various languages by parsing and formatting the date or number (Internationalization), and also add culture specific customization and translation to the text (Localization).

By default, DateRangePicker date format, week, and month names are specific to the English culture. It utilizes the Essential JavaScript 2 Internationalization package to parse and format the date object based on the culture by using the official UNICODE CLDR JSON data. It allows to load culture specific CLDR JSON data by using loadCldr method.

To use a different culture other than English, follow the below steps:

Install the CLDR-Data package by using the below command (Installs the CLDR JSON data). To know more about CLDR-Data refer to the CLDR-Data link.

npm install cldr-data --save

Once the package is installed, you can find the culture specific JSON data under the location /node_modules/cldr-data.

Import the installed CLDR JSON data into the app.ts file. To import JSON data, install the JSON plugin loader. Here, The SystemJS JSON plugin loader is used.

npm install systemjs-plugin-json --save-dev

After installation, configure the system.config.js configuration settings as given below to map the systemjs-plugin-json loader.

System.config({
    paths: {
        'npm:': './node_modules/',
        'syncfusion:': 'npm:@syncfusion/'

    },
    map: {
        app: 'app',

        //Syncfusion packages mapping
        "@syncfusion/ej2-base": "syncfusion:ej2-base/dist/ej2-base.umd.min.js",
        "@syncfusion/ej2-inputs": "syncfusion:ej2-inputs/dist/ej2-inputs.umd.min.js",
        "@syncfusion/ej2-popups": "syncfusion:ej2-popups/dist/ej2-popups.umd.min.js",
        "@syncfusion/ej2-lists": "syncfusion:ej2-lists/dist/ej2-lists.umd.min.js",
        "@syncfusion/ej2-data": "syncfusion:ej2-data/dist/ej2-data.umd.min.js",
        "@syncfusion/ej2-buttons": "syncfusion:ej2-buttons/dist/ej2-buttons.umd.min.js",
        "@syncfusion/ej2-splitbuttons": "syncfusion:ej2-splitbuttons/dist/ej2-splitbuttons.umd.min.js",
        "@syncfusion/ej2-calendars": "syncfusion:ej2-calendars/dist/ej2-calendars.umd.min.js",
        "cldr-data": 'npm:cldr-data',
        "plugin-json": "npm:systemjs-plugin-json/json.js"
    },
    meta: {
        '*.json': { loader: 'plugin-json' }
    },
    packages: {
        'app': { main: 'app', defaultExtension: 'js' },
        'cldr-data': { main: 'index.js', defaultExtension: 'js' }
    }
});

System.import('app');

Use the loadCldr method to load the culture specific CLDR JSON data from the installed location to app.ts file.
DateRangePicker displayed Sunday as the first day of week based on default culture (“en-US”). If you want to display the DateRangePicker with loaded culture’s first day of week, you need to import weekdata.json file from the cldr-data/suppemental as given in the code example.

declare var require: any;

loadCldr(
    require('cldr-data/main/de/numbers.json'),
    require('cldr-data/main/de/ca-gregorian.json'),
    require('cldr-data/main/de/numbers.json'),
    require('cldr-data/main/de/timeZoneNames.json'),
    require('cldr-data/supplemental/weekdata.json') // To load the culture based first day of week
);

The Localization library allows you to localize default text content of the DateRangePicker. The DateRangePicker component has static text for today feature that can be changed to other cultures (Arabic, Deutsch, French, etc.) by defining the locale value and translation object.

Locale keywords	Text
placeholder	Hint to describe expected value in input element.
startLabel	Label to represent the start date.
endLabel	Label to represent the end date.
applyText	Text present in the apply button.
cancelText	Text present in the cancel button.
selectedDays	Text to represent selected days.
days	Text represents days.
customRange	Text present in the custom range button in presets container.

Before changing to a culture other than English, ensure that locale text for the concerned culture is loaded through load method of
L10n class.

//Load the L10n, loadCldr from ej2-base
import { loadCldr, L10n } from '@syncfusion/ej2-base';

//load the locale object to set the localized placeholder value
L10n.load({
    'de': {
        'daterangepicker': { placeholder: 'Wählen Sie ein Datum aus' }
    }
});

Set the culture by using the locale property. In the following code example, the DateRangePicker is initialized in German culture with corresponding localized text.

The following example demonstrates the DateRangePicker in German culture.

index.ts
index.html
import { DateRangePicker } from '@syncfusion/ej2-calendars';
//Load the L10n, loadCldr from ej2-base
import { loadCldr, L10n } from '@syncfusion/ej2-base';
//load the CLDR data files.
import * as numberingSystems from './numberingSystems.json';
import * as gregorian from './ca-gregorian.json';
import * as numbers from './numbers.json';
import * as detimeZoneNames from './timeZoneNames.json';

loadCldr(numberingSystems, gregorian, numbers, detimeZoneNames);
L10n.load({
    'de': {
        'daterangepicker': {
         placeholder:'Wählen Sie einen Bereich aus',
         startLabel: 'Wählen Sie Startdatum',
         endLabel: 'Wählen Sie Enddatum',
         applyText: 'Sich bewerben',
         cancelText: 'Stornieren',
         selectedDays: 'Ausgewählte Tage',
         days: 'Tage',
         customRange: 'benutzerdefinierten Bereich'
        }
    }
});

// creates the simple DateRangePicker component with de culture
let daterangeObject: DateRangePicker = new DateRangePicker({
    // sets the locale property.
    locale: 'de',
    value: new Date(),
});
daterangeObject.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 DateRangePicker control</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="styles.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-calendars/styles/material.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'>
        <input id='element' />
    </div>
</body>

</html>

Right-To-Left

The DateRangePicker supports RTL (right-to-left) functionality for languages like Arabic and Hebrew to displays the text in the right-to-left direction. Use enableRtl property to set the RTL direction. The following code example initialize the DateRangePicker component in Hebrew culture and also explains how to set the localized text to the placeholder using load method of
L10n class.

index.ts
index.html
import { loadCldr, L10n } from '@syncfusion/ej2-base';
import { DateRangePicker } from '@syncfusion/ej2-calendars';
import * as numberingSystems from './numberingSystems.json';
import * as gregorian from './ca-gregorian.json';
import * as numbers from './numbers.json';
import * as hetimeZoneNames from './timeZoneNames.json';

loadCldr(numberingSystems, gregorian, numbers, hetimeZoneNames);

L10n.load({
    'he': {
        'daterangepicker': {
            placeholder: 'בחר טווח'
            startLabel: 'תווית התחלה',
            endLabel: 'ח',
            applyText: 'להחיל טקסט',
            cancelText: 'בטל טקסט',
            selectedDays: 'ימים נבחרים',
            days: 'أימים',
            customRange: 'טווח מותאם אישית'
        }
    }
});

// creates the simple DateRangePicker component
let daterangeobject: DateRangePicker = new DateRangePicker({
    //sets the locale
    locale: 'he',
    //sets the enableRtl
    enableRtl: true,
});
daterangeobject.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 DateRangePicker control</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="styles.css" rel="stylesheet" />
    <!--style reference from the DateRangePicker component-->
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-calendars/styles/material.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'>
        <input id='element' />
    </div>
</body>

</html>

Customize the date format

Representation of start and end date strings can be customized to required format by using format property. By default, the format is based on the culture. To know more about the date format standards, refer to the Internationalization Date Format section. In the following sample, the date strings are formatted to yyyy-MM-dd and in between the string “to” is set as a separator.

index.ts
index.html
import { DateRangePicker } from '@syncfusion/ej2-calendars';
// creates a daterangepicker with format property
let daterangeObject: DateRangePicker = new DateRangePicker({
    format:"yyyy-MM-dd",
    separator: "to",
    placeholder:"Select Range"

});
daterangeObject.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 DateRangePicker control</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="styles.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/27.2.2/ej2-calendars/styles/material.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'>
        <input id='element' type="text" />
    </div>
</body>

</html>