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Mask Support in JavaScript DateTimePicker control

22 Jul 2021 / 2 minutes to read

DateTimePicker has enableMask property that provides the option to enable the built-in date masking support. Also, you must inject the MaskedDateTime module to enable the masking support.

Source
Preview
app.ts
index.html
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import { DateTimePicker, MaskedDateTime } from '@syncfusion/ej2-calendars';
DateTimePicker.Inject(MaskedDateTime);

let datetimepickerObject: DateTimePicker = new DateTimePicker({
    enableMask: true
});
datetimepickerObject.appendTo('#mask');
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<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 DateTimePicker 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="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-calendars/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/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>
</head>

<body>
    <div id='loader'>LOADING....</div>
    <div id='container'>
        <input id='mask' />
    </div>
</body>

</html>

The mask pattern is defined based on the provided date format to the component. If the format is not specified, the mask pattern is formed based on the default format of the current culture.

Keys Actions
Up / Down arrows To increment and decrement the selected portion of the date and time.
Left / Right arrows and Tab To navigate the selection from one portion to next portion

The following example demonstrates default and custom format of DateTimePicker component with mask.

Source
Preview
app.ts
index.html
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import { DateTimePicker, MaskedDateTime } from '@syncfusion/ej2-calendars';
DateTimePicker.Inject(MaskedDateTime);

let datetimepickerObject: DateTimePicker = new DateTimePicker({
    enableMask: true
});
datetimepickerObject.appendTo('#mask');

let datetimepickerFormat: DateTimePicker = new DateTimePicker({
    enableMask: true,
    format: "M/d/yyyy hh:mm a",
});
datetimepickerFormat.appendTo('#format');
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<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 DateTimePicker 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="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-calendars/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/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>
</head>
  <body>
    <div id='loader'>LOADING....</div>
    <div id='container' style="margin:50px auto 0; width:250px;">
        <br><br>
        <label class="custom-input-label">Mask support with default format</label>
        <br><br>
        <input id='mask' />
        <br><br><br>
        <label class="custom-input-label">Mask support with custom format</label>
        <br><br>
        <input id='format' />
        </div>
    </div>
  </body>
</html>

Configure Mask Placeholder

You can change mask placeholder value through property maskPlaceholder. By default , it takes the full name of date and time co-ordinates such as day, month, year, hour etc.

While changing to a culture other than English, ensure that locale text for the concerned culture is loaded through load method of L10n class for mask placeholder values like below.

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

//load the locale object to set the localized mask placeholder value
L10n.load({
'de': {
    'datetimepicker': { day: 'Tag' , month: 'Monat', year: 'Jahr', hour: 'Stunde' ,minute: 'Minute', second:'Sekunden' }
}
});

The following example demonstrates default and customized mask placeholder value.

Source
Preview
app.ts
index.html
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import { DateTimePicker, MaskedDateTime } from '@syncfusion/ej2-calendars';
DateTimePicker.Inject(MaskedDateTime);

let datetimepickerObject: DateTimePicker = new DateTimePicker({
    enableMask: true
});
datetimepickerObject.appendTo('#mask');

let datetimePlaceholder: DateTimePicker = new DateTimePicker({
     enableMask: true,
    maskPlaceholder: {day: 'd', month: 'M', year: 'y', hour: 'h', minute: 'm', second: 's'}
});
datetimePlaceholder.appendTo('#placeholder');
Copied to clipboard
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 DateTimePicker 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="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-calendars/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/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>
</head>
  <body>
    <div id='loader'>LOADING....</div>
    <div id='container' style="margin:50px auto 0; width:250px;">
        <br><br>
        <label class="custom-input-label">Default mask placeholder</label>
        <br><br>
        <input id='mask' />
        <br><br><br>
        <label class="custom-input-label">Custom mask placeholder</label>
        <br><br>
        <input id='placeholder' />
        </div>
    </div>
  </body>

</html>