Customize the datepicker day header in React Datepicker component

24 Jan 20237 minutes to read

You can change the format of the day that to be displayed in header using dayHeaderFormat property. By default, the format is Short.

You can find the possible formats on below.

Name	Description
`Short`	Sets the short format of day name (like Su ) in day header.
`Narrow`	Sets the single character of day name (like S ) in day header.
`Abbreviated`	Sets the min format of day name (like Sun ) in day header.
`Wide`	Sets the long format of day name (like Sunday ) in day header.

index.jsx
index.tsx
// import the datepickercomponent
import { DatePickerComponent } from '@syncfusion/ej2-react-calendars';
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
export default class App extends React.Component {
    datepickerObj;
    floatLabelObj;
    floatData;
    fields;
    value = 'Short';
    constructor(props) {
        super(props);
        this.floatData = [
            { Id: 'Short', Label: 'Short' },
            { Id: 'Narrow', Label: 'Narrow' },
            { Id: 'Abbreviated', Label: 'Abbreviated' },
            { Id: 'Wide', Label: 'Wide' }
        ];
        this.fields = { text: 'Label', value: 'Id' };
    }
    formatHandler(args) {
        this.datepickerObj.dayHeaderFormat = args.value;
    }
    render() {
        return (
        // specifies the tag for render the DatePicker component
        <div id='container'>
                <div id='datepicker'>
                    <DatePickerComponent ref={(datepicker) => this.datepickerObj = datepicker} dayHeaderFormat="Short"/>
                </div>
                <div id="format">
                     <label className="custom-input-label">Header Format Types</label>
                    <DropDownListComponent id="select" value={this.value} dataSource={this.floatData} ref={(dropdownlist) => { this.floatLabelObj = dropdownlist; }} fields={this.fields} change={this.formatHandler.bind(this)}/>
            </div>
          </div>);
    }
}
ReactDOM.render(<App />, document.getElementById('element'));
// import the datepickercomponent
import { DatePickerComponent } from '@syncfusion/ej2-react-calendars';
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';

export default class App extends React.Component<{}, {}> {
    public datepickerObj: DatePickerComponent;
    public floatLabelObj: DropDownListComponent;
    private floatData: { [key: string]: Object }[];
    private fields: object;
    private value: string = 'Short';
    constructor(props: {}) {
    super(props);
    this.floatData = [
      { Id: 'Short', Label: 'Short' },
      { Id: 'Narrow', Label: 'Narrow' },
      { Id: 'Abbreviated', Label: 'Abbreviated' },
      { Id: 'Wide', Label: 'Wide' }
    ];
    this.fields = { text: 'Label', value: 'Id' };
    }
    private formatHandler(args: any): void {
        this.datepickerObj.dayHeaderFormat = args.value;
    }
    public render() {
        return (
            // specifies the tag for render the DatePicker component
            <div id='container'>
                <div id='datepicker'>
                    <DatePickerComponent ref={(datepicker) => this.datepickerObj = datepicker} dayHeaderFormat="Short"/>
                </div>
                <div id="format">
                     <label className="custom-input-label">Header Format Types</label>
                    <DropDownListComponent id="select" value = {this.value}  dataSource={this.floatData} ref={(dropdownlist) => { this.floatLabelObj = dropdownlist }} fields={this.fields} change={this.formatHandler.bind(this)}/>
            </div>
          </div>
        );
     }
 }

ReactDOM.render(<App />, document.getElementById('element'));