Header bar in React Schedule component

14 Mar 202424 minutes to read

The header part of Scheduler can be customized easily with the built-in options available.

Show or Hide header bar

By default, the header bar holds the date and view navigation options, through which the user can switch between the dates and various views. This header bar can be hidden from the UI by setting false to the showHeaderBar property. It’s default value is true.

import * as React from 'react';
import * as ReactDOM from "react-dom";
import { ScheduleComponent, Day, Week, WorkWeek, Inject, ViewsDirective, ViewDirective } from '@syncfusion/ej2-react-schedule';
import { scheduleData } from './datasource';
const App = () => {
  const eventSettings = { dataSource: scheduleData };

  return (<ScheduleComponent width='100%' height='550px' selectedDate={new Date(2018, 1, 15)} showHeaderBar={false} eventSettings={eventSettings}>
    <ViewsDirective>
      <ViewDirective option='Day' />
      <ViewDirective option='Week' />
      <ViewDirective option='WorkWeek' />
    </ViewsDirective>
    <Inject services={[Day, Week, WorkWeek]} />
  </ScheduleComponent>);
}
;
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
import * as React from 'react';
import * as ReactDOM from "react-dom";
import {
  ScheduleComponent, Day, Week, WorkWeek, Inject, ViewsDirective, ViewDirective, EventSettingsModel
} from '@syncfusion/ej2-react-schedule';
import { scheduleData } from './datasource';

const App = () => {
  const eventSettings: EventSettingsModel = { dataSource: scheduleData };

  return (<ScheduleComponent width='100%' height='550px' selectedDate={new Date(2018, 1, 15)} showHeaderBar={false} eventSettings={eventSettings} >
    <ViewsDirective>
      <ViewDirective option='Day' />
      <ViewDirective option='Week' />
      <ViewDirective option='WorkWeek' />
    </ViewsDirective>
    <Inject services={[Day, Week, WorkWeek]} />
  </ScheduleComponent>)
};
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Schedule</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-calendars/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-schedule/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
     <style>
        #loader {
            color: #008cff;
            height: 40px;
            left: 45%;
            position: absolute;
            top: 45%;
            width: 30%;
        }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <div id='schedule'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>

Customizing header bar

Apart from the default date navigation and view options available on the header bar, you can add custom items into the Scheduler header bar by making use of the actionBegin event. Here, an employee image is added to the header bar, clicking on which will open the popup showing that person’s short profile information.

import { useRef, useEffect } from 'react';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { ScheduleComponent, ViewsDirective, ViewDirective, Month, Inject } from '@syncfusion/ej2-react-schedule';
import { createElement, compile } from '@syncfusion/ej2-base';
import { Popup } from '@syncfusion/ej2-popups';
import { scheduleData } from './datasource';

const App = () => {
    const schedule = useRef(null);
    const eventSettings = { dataSource: scheduleData };
    let profilePopup;
    const onActionBegin = (args) => {
        if (args.requestType === 'toolbarItemRendering') {
            const userIconItem = {
                align: 'Right', prefixIcon: 'user-icon', text: 'Nancy', cssClass: 'e-schedule-user-icon'
            };
            args.items.push(userIconItem);
        }
    }

    const onActionComplete = (args) => {
        const scheduleElement = document.getElementById('schedule');
        if (args.requestType === 'toolBarItemRendered' && scheduleElement) {
            const userIconEle = scheduleElement.querySelector('.e-schedule-user-icon');
            if (userIconEle) {
                userIconEle.onclick = () => {
                    if (profilePopup) {
                        profilePopup.relateTo = userIconEle;
                        profilePopup.dataBind();
                        if (profilePopup.element.classList.contains('e-popup-close')) {
                            profilePopup.show();
                        } else {
                            profilePopup.hide();
                        }
                    }
                };
            }
        }
    }

    useEffect(() => {
        const scheduleElement = schedule.current.element;
        let profilePopup;
        if (scheduleElement) {
            const userContentEle = createElement('div', {
                className: 'e-profile-wrapper'
            });
            scheduleElement.parentElement?.appendChild(userContentEle);
            const userIconEle = scheduleElement.querySelector('.e-schedule-user-icon');
            const getDOMString = compile('<div class="profile-container"><div class="profile-image">' +
                '</div><div class="content-wrap"><div class="name">Nancy</div>' +
                '<div class="destination">Product Manager</div><div class="status">' +
                '<div class="status-icon"></div>Online</div></div></div>');
            const output = getDOMString({});
            profilePopup = new Popup(userContentEle, {
                content: output[0],
                relateTo: userIconEle,
                position: { X: 'left', Y: 'bottom' },
                collision: { X: 'flip', Y: 'flip' },
                targetType: 'relative',
                viewPortElement: scheduleElement,
                width: 185,
                height: 80
            });
            profilePopup.hide();
        }
    }, []);
    return (<ScheduleComponent cssClass='schedule-header-bar' width='100%' height='550px' ref={schedule}
        selectedDate={new Date(2018, 1, 15)} eventSettings={eventSettings}
        actionBegin={onActionBegin} actionComplete={onActionComplete}>
        <ViewsDirective>
            <ViewDirective option='Month' />
        </ViewsDirective>
        <Inject services={[Month]} />
    </ScheduleComponent>)
};
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
import { useRef, useEffect } from 'react';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import {
  ScheduleComponent, ViewsDirective, ViewDirective, Month, Inject, ActionEventArgs, ToolbarActionArgs, EventSettingsModel
} from '@syncfusion/ej2-react-schedule';
import { createElement, compile } from '@syncfusion/ej2-base';
import { ItemModel } from '@syncfusion/ej2-react-navigations';
import { Popup } from '@syncfusion/ej2-popups';
import { scheduleData } from './datasource';

const App = () => {
  const schedule = useRef<ScheduleComponent>(null);
  const eventSettings: EventSettingsModel = { dataSource: scheduleData };
  let profilePopup: Popup;
  const onActionBegin = (args: ActionEventArgs & ToolbarActionArgs): void => {
    if (args.requestType === 'toolbarItemRendering') {
      const userIconItem: ItemModel = {
        align: 'Right', prefixIcon: 'user-icon', text: 'Nancy', cssClass: 'e-schedule-user-icon'
      };
      args.items.push(userIconItem);
    }
  }

  const onActionComplete = (args: ActionEventArgs): void => {
    const scheduleElement: HTMLElement = document.getElementById('schedule');
    if (args.requestType === 'toolBarItemRendered' && scheduleElement) {
      const userIconEle: HTMLElement = scheduleElement.querySelector('.e-schedule-user-icon');
      if (userIconEle) {
        userIconEle.onclick = () => {
          if (profilePopup) {
            profilePopup.relateTo = userIconEle;
            profilePopup.dataBind();
            if (profilePopup.element.classList.contains('e-popup-close')) {
              profilePopup.show();
            } else {
              profilePopup.hide();
            }
          }
        };
      }
    }
  }

  useEffect(() => {
    const scheduleElement: HTMLElement = schedule.current.element;
    let profilePopup: Popup;
    if (scheduleElement) {
      const userContentEle: HTMLElement = createElement('div', {
        className: 'e-profile-wrapper'
      });
      scheduleElement.parentElement.appendChild(userContentEle);
      const userIconEle: HTMLElement | null = scheduleElement.querySelector('.e-schedule-user-icon');
      const getDOMString: (data: object) => NodeList = compile('<div class="profile-container"><div class="profile-image">' +
        '</div><div class="content-wrap"><div class="name">Nancy</div>' +
        '<div class="destination">Product Manager</div><div class="status">' +
        '<div class="status-icon"></div>Online</div></div></div>');
      const output: NodeList = getDOMString({});
      profilePopup = new Popup(userContentEle, {
        content: output[0] as HTMLElement,
        relateTo: userIconEle,
        position: { X: 'left', Y: 'bottom' },
        collision: { X: 'flip', Y: 'flip' },
        targetType: 'relative',
        viewPortElement: scheduleElement,
        width: 185,
        height: 80
      });
      profilePopup.hide();
    }
  }, []);
  return (<ScheduleComponent cssClass='schedule-header-bar' width='100%' height='550px' ref={schedule}
    selectedDate={new Date(2018, 1, 15)} eventSettings={eventSettings}
    actionBegin={onActionBegin} actionComplete={onActionComplete}>
    <ViewsDirective>
      <ViewDirective option='Month' />
    </ViewsDirective>
    <Inject services={[Month]} />
  </ScheduleComponent>)
};
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Schedule</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-calendars/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-schedule/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <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>
     <style>
        #loader {
            color: #008cff;
            height: 40px;
            left: 45%;
            position: absolute;
            top: 45%;
            width: 30%;
        }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <div id='schedule'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>

How to display the view options within the header bar popup

By default, the header bar holds the view navigation options, through which the user can switch between various views. You can move this view options to the header bar popup by setting true to the enableAdaptiveUI property.

import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { ScheduleComponent, Day, Week, WorkWeek, Month, Agenda, Inject } from '@syncfusion/ej2-react-schedule';
import { scheduleData } from './datasource';
const App = () => {
  const eventSettings = { dataSource: scheduleData };

  return (<ScheduleComponent width='100%' height='500px' selectedDate={new Date(2018, 1, 15)} enableAdaptiveUI={true} eventSettings={eventSettings}>
    <Inject services={[Day, Week, WorkWeek, Month, Agenda]} />
  </ScheduleComponent>);
}
;
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import {
  ScheduleComponent, Day, Week, WorkWeek, Month, Agenda, Inject, EventSettingsModel
} from '@syncfusion/ej2-react-schedule';
import { scheduleData } from './datasource';

const App = () => {
  const eventSettings: EventSettingsModel = { dataSource: scheduleData };

  return (<ScheduleComponent width='100%' height='500px' selectedDate={new Date(2018, 1, 15)} enableAdaptiveUI={true} eventSettings={eventSettings}>
    <Inject services={[Day, Week, WorkWeek, Month, Agenda]} />
  </ScheduleComponent>)
};
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Schedule</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-calendars/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-schedule/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <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>
     <style>
        #loader {
            color: #008cff;
            height: 40px;
            left: 45%;
            position: absolute;
            top: 45%;
            width: 30%;
        }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <div id='schedule'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>

Refer here to know more about adaptive UI in resources scheduler.

Date header customization

The Scheduler UI that displays the date text on all views are considered as the date header cells. You can customize the date header cells of Scheduler either using dateHeaderTemplate or renderCell event.

Using date header template

The dateHeaderTemplate option is used to customize the date header cells of day, week, work-week and timeline views.

import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ScheduleComponent, ViewsDirective, ViewDirective, Day, Week, WorkWeek, Inject, TimelineViews } from '@syncfusion/ej2-react-schedule';
import { scheduleData } from './datasource';
import { Internationalization } from '@syncfusion/ej2-base';
const App = () => {
    const eventSettings = { dataSource: scheduleData };
    const instance = new Internationalization();
    const getDateHeaderText = (value) => {
        return instance.formatDate(value, { skeleton: 'Ed' });
    }
    const getWeather = (value) => {
        switch (value.getDay()) {
            case 0:
                return '<div class="weather-text">25°C</div>';
            case 1:
                return '<div class="weather-text">18°C</div>';
            case 2:
                return '<div class="weather-text">10°C</div>';
            case 3:
                return '<div class="weather-text">16°C</div>';
            case 4:
                return '<div class="weather-text">8°C</div>';
            case 5:
                return '<div class="weather-text">27°C</div>';
            case 6:
                return '<div class="weather-text">17°C</div>';
            default:
                return null;
        }
    }
    const dateHeaderTemplate = (props) => {
        return (<div><div>{getDateHeaderText(props.date)}</div><div className="date-text" dangerouslySetInnerHTML=></div></div>);
    }
    return (<ScheduleComponent width='100%' height='550px' cssClass='schedule-date-header-template' selectedDate={new Date(2018, 1, 15)} eventSettings={eventSettings} dateHeaderTemplate={dateHeaderTemplate}>
        <ViewsDirective>
            <ViewDirective option='Day' />
            <ViewDirective option='Week' />
            <ViewDirective option='WorkWeek' />
            <ViewDirective option='TimelineWeek' />
        </ViewsDirective>
        <Inject services={[Day, Week, WorkWeek, TimelineViews]} />
    </ScheduleComponent>);
}
;
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ScheduleComponent, ViewsDirective, ViewDirective, Day, Week, WorkWeek, Inject, TimelineViews } from '@syncfusion/ej2-react-schedule';
import { scheduleData } from './datasource';
import { Internationalization } from '@syncfusion/ej2-base';

const App = () => {
  const eventSettings = { dataSource: scheduleData };
  const instance: Internationalization = new Internationalization();
  const getDateHeaderText = (value: Date): string => {
    return instance.formatDate(value, { skeleton: 'Ed' });
  }
  const getWeather = (value: Date) => {
    switch (value.getDay()) {
      case 0:
        return '<div class="weather-text">25°C</div>';
      case 1:
        return '<div class="weather-text">18°C</div>';
      case 2:
        return '<div class="weather-text">10°C</div>';
      case 3:
        return '<div class="weather-text">16°C</div>';
      case 4:
        return '<div class="weather-text">8°C</div>';
      case 5:
        return '<div class="weather-text">27°C</div>';
      case 6:
        return '<div class="weather-text">17°C</div>';
      default:
        return null;
    }
  }
  const dateHeaderTemplate = (props): JSX.Element => {
    return (<div><div>{getDateHeaderText(props.date)}</div><div className="date-text" dangerouslySetInnerHTML=></div></div>);
  }

  return (<ScheduleComponent width='100%' height='550px' cssClass='schedule-date-header-template'
    selectedDate={new Date(2018, 1, 15)} eventSettings={eventSettings}
    dateHeaderTemplate={dateHeaderTemplate}>
    <ViewsDirective>
      <ViewDirective option='Day' />
      <ViewDirective option='Week' />
      <ViewDirective option='WorkWeek' />
      <ViewDirective option='TimelineWeek' />
    </ViewsDirective>
    <Inject services={[Day, Week, WorkWeek, TimelineViews]} />
  </ScheduleComponent>)
};
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Schedule</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-calendars/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-schedule/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <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>
     <style>
        #loader {
            color: #008cff;
            height: 40px;
            left: 45%;
            position: absolute;
            top: 45%;
            width: 30%;
        }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <div id='schedule'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>
/* csslint ignore:start */

.schedule-date-header-template.e-schedule .e-vertical-view .e-header-cells {
    padding: 0;
    text-align: center !important;
}   

.schedule-date-header-template.e-schedule .date-text {
    font-size: 14px;
}

.schedule-date-header-template.e-schedule.e-device .date-text {
    font-size: 12px;
}

.schedule-date-header-template.e-schedule .weather-text {
    font-size: 11px;
}

.schedule-date-header-template.e-schedule .e-month-view .weather-text {
    float: right;
    margin: -20px 2px 0 0;
    width: 20px;
    height: 20px;
}

/* csslint ignore:end */

Using renderCell event

In month view, the date header template is not applicable and therefore the same customization can be added beside the date text in month cells by making use of the renderCell event.

import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ScheduleComponent, ViewsDirective, ViewDirective, Month, Inject } from '@syncfusion/ej2-react-schedule';
import { scheduleData } from './datasource';
const App = () => {
    const eventSettings = { dataSource: scheduleData };
    const getWeather = (value) => {
        switch (value.getDay()) {
            case 0:
                return '<div class="weather-text">25°C</div>';
            case 1:
                return '<div class="weather-text">18°C</div>';
            case 2:
                return '<div class="weather-text">10°C</div>';
            case 3:
                return '<div class="weather-text">16°C</div>';
            case 4:
                return '<div class="weather-text">8°C</div>';
            case 5:
                return '<div class="weather-text">27°C</div>';
            case 6:
                return '<div class="weather-text">17°C</div>';
            default:
                return null;
        }
    }
    const onRenderCell = (args) => {
        if (args.elementType === 'monthCells') {
            let ele = document.createElement('div');
            ele.innerHTML = getWeather(args.date);
            (args.element).appendChild(ele.firstChild);
        }
    }
    return (<ScheduleComponent width='100%' height='550px' cssClass='schedule-date-header-template' renderCell={onRenderCell} selectedDate={new Date(2018, 1, 15)} eventSettings={eventSettings}>
        <ViewsDirective>
            <ViewDirective option='Month' />
        </ViewsDirective>
        <Inject services={[Month]} />
    </ScheduleComponent>);
}
;
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ScheduleComponent, ViewsDirective, ViewDirective, View, Month, RenderCellEventArgs, Inject } from '@syncfusion/ej2-react-schedule';
import { scheduleData } from './datasource';

const App = () => {
  const eventSettings = { dataSource: scheduleData };
  const getWeather = (value: Date) => {
    switch (value.getDay()) {
      case 0:
        return '<div class="weather-text">25°C</div>';
      case 1:
        return '<div class="weather-text">18°C</div>';
      case 2:
        return '<div class="weather-text">10°C</div>';
      case 3:
        return '<div class="weather-text">16°C</div>';
      case 4:
        return '<div class="weather-text">8°C</div>';
      case 5:
        return '<div class="weather-text">27°C</div>';
      case 6:
        return '<div class="weather-text">17°C</div>';
      default:
        return null;
    }
  }
  const onRenderCell = (args: RenderCellEventArgs): void => {
    if (args.elementType === 'monthCells') {
      let ele: Element = document.createElement('div');
      ele.innerHTML = getWeather(args.date);
      (args.element).appendChild(ele.firstChild);
    }
  }

  return (<ScheduleComponent width='100%' height='550px' cssClass='schedule-date-header-template'
    renderCell={onRenderCell} selectedDate={new Date(2018, 1, 15)} eventSettings={eventSettings}>
    <ViewsDirective>
      <ViewDirective option='Month' />
    </ViewsDirective>
    <Inject services={[Month]} />
  </ScheduleComponent>)
};
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Schedule</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-calendars/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-schedule/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <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>
     <style>
        #loader {
            color: #008cff;
            height: 40px;
            left: 45%;
            position: absolute;
            top: 45%;
            width: 30%;
        }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <div id='schedule'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>
/* csslint ignore:start */

.schedule-date-header-template.e-schedule .e-vertical-view .e-header-cells {
    padding: 0;
    text-align: center !important;
}   

.schedule-date-header-template.e-schedule .date-text {
    font-size: 14px;
}

.schedule-date-header-template.e-schedule.e-device .date-text {
    font-size: 12px;
}

.schedule-date-header-template.e-schedule .weather-text {
    font-size: 11px;
}

.schedule-date-header-template.e-schedule .e-month-view .weather-text {
    float: right;
    margin: -20px 2px 0 0;
    width: 20px;
    height: 20px;
}

/* csslint ignore:end */

Customizing the date range text

The dateRangeTemplate option allows you to customize the text content of the date range displayed in the scheduler. By default, the date range text is determined by the scheduler view being used. However, you can use the dateRangeTemplate option to override the default text and specify your own custom text to be displayed.

The dateRangeTemplate property includes startDate, endDate and currentView options, you can customize the date range text using these available options.

import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ScheduleComponent, ViewsDirective, ViewDirective, Day, Week, WorkWeek, Inject, TimelineViews } from '@syncfusion/ej2-react-schedule';
import { Internationalization } from '@syncfusion/ej2-base';
const App = () => {
  const instance = new Internationalization();
  const getDateRange = (startDate, endDate) => {
    return instance.formatDate(startDate, { skeleton: 'yMd' }) + ' - ' + instance.formatDate(endDate, { skeleton: 'yMd' });
  }
  const dateRangeTemplate = (props) => {
    return (<div>{getDateRange(props.startDate, props.endDate)}</div>);
  }
  return (<ScheduleComponent width='100%' height='550px' dateRangeTemplate={dateRangeTemplate}>
    <ViewsDirective>
      <ViewDirective option='Day' />
      <ViewDirective option='Week' />
      <ViewDirective option='WorkWeek' />
      <ViewDirective option='TimelineWeek' />
    </ViewsDirective>
    <Inject services={[Day, Week, WorkWeek, TimelineViews]} />
  </ScheduleComponent>);
}
;
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { ScheduleComponent, ViewsDirective, ViewDirective, View, Day, Week, WorkWeek, Month, RenderCellEventArgs, Inject, TimelineViews } from '@syncfusion/ej2-react-schedule';
import { Internationalization } from '@syncfusion/ej2-base';
const App = () => {
  const instance: Internationalization = new Internationalization();
  const getDateRange = (startDate: Date, endDate: Date): string => {
    return instance.formatDate(startDate, { skeleton: 'yMd' }) + ' - ' + instance.formatDate(endDate, { skeleton: 'yMd' });
  }
  const dateRangeTemplate = (props): JSX.Element => {
    return (<div>{getDateRange(props.startDate, props.endDate)}</div>);
  }
  return (
    <ScheduleComponent width='100%' height='550px'
      dateRangeTemplate={dateRangeTemplate}>
      <ViewsDirective>
        <ViewDirective option='Day' />
        <ViewDirective option='Week' />
        <ViewDirective option='WorkWeek' />
        <ViewDirective option='TimelineWeek' />
      </ViewsDirective>
      <Inject services={[Day, Week, WorkWeek, TimelineViews]} />
    </ScheduleComponent>
  )
};
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Schedule</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-calendars/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-schedule/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <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>
     <style>
        #loader {
            color: #008cff;
            height: 40px;
            left: 45%;
            position: absolute;
            top: 45%;
            width: 30%;
        }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <div id='schedule'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>
/* csslint ignore:start */

.schedule-date-header-template.e-schedule .e-vertical-view .e-header-cells {
    padding: 0;
    text-align: center !important;
}   

.schedule-date-header-template.e-schedule .date-text {
    font-size: 14px;
}

.schedule-date-header-template.e-schedule.e-device .date-text {
    font-size: 12px;
}

.schedule-date-header-template.e-schedule .weather-text {
    font-size: 11px;
}

.schedule-date-header-template.e-schedule .e-month-view .weather-text {
    float: right;
    margin: -20px 2px 0 0;
    width: 20px;
    height: 20px;
}

/* csslint ignore:end */

Customizing header indent cells

It is possible to customize the header indent cells using the headerIndentTemplate option and change the look and appearance in both the vertical and timeline views. In vertical views, You can customize the header indent cells at the hierarchy level and you can customize the resource header left indent cell in timeline views using the template option.

Example: To customize the header left indent cell to display resources text, refer to the below code example.

import * as ReactDOM from 'react-dom';
import * as React from 'react';
import { Week, TimelineViews, TimelineMonth, Day, ScheduleComponent, ViewsDirective, ViewDirective, ResourcesDirective, ResourceDirective, Inject } from '@syncfusion/ej2-react-schedule';
import { resourceData } from './datasource';
const App = () => {
  const eventSettings = { dataSource: resourceData };
  const group = { resources: ['Owners'] };
  const ownerData = [
    { OwnerText: 'Nancy', Id: 1, OwnerColor: '#ffaa00' },
    { OwnerText: 'Steven', Id: 2, OwnerColor: '#f8a398' },
    { OwnerText: 'Michael', Id: 3, OwnerColor: '#7499e1' }
  ];
  const headerIndentTemplate = () => {
    return (<div className='e-resource-text'>
      <div className="text">Resources</div></div>);
  }
  return (<ScheduleComponent width='100%' height='550px' currentView='Week' headerIndentTemplate={headerIndentTemplate} selectedDate={new Date(2018, 3, 1)} eventSettings={eventSettings} group={group}>
    <ViewsDirective>
      <ViewDirective option='Day' />
      <ViewDirective option='Week' />
      <ViewDirective option='TimelineWeek' />
      <ViewDirective option='TimelineMonth' />
    </ViewsDirective>
    <ResourcesDirective>
      <ResourceDirective field='OwnerId' title='Owner' name='Owners' allowMultiple={true} dataSource={ownerData} textField='OwnerText' idField='Id' colorField='OwnerColor'>
      </ResourceDirective>
    </ResourcesDirective>
    <Inject services={[Day, Week, TimelineViews, TimelineMonth]} />
  </ScheduleComponent>);
}
  ;
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
import * as ReactDOM from 'react-dom';
import * as React from 'react';
import {
  Week, TimelineViews, TimelineMonth, Day, ScheduleComponent, GroupModel, ViewsDirective, ViewDirective, ResourcesDirective, EventSettingsModel,
  ResourceDirective, Inject
} from '@syncfusion/ej2-react-schedule';
import { resourceData } from './datasource';

const App = () => {
  const eventSettings: EventSettingsModel = { dataSource: resourceData };
  const group: GroupModel = { resources: ['Owners'] };
  const ownerData: object[] = [
    { OwnerText: 'Nancy', Id: 1, OwnerColor: '#ffaa00' },
    { OwnerText: 'Steven', Id: 2, OwnerColor: '#f8a398' },
    { OwnerText: 'Michael', Id: 3, OwnerColor: '#7499e1' }
  ];

  const headerIndentTemplate = () => {
    return (
      <div className='e-resource-text'>
        <div className="text">Resources</div></div>
    );
  }

  return (<ScheduleComponent width='100%' height='550px' currentView='Week' headerIndentTemplate={headerIndentTemplate} selectedDate={new Date(2018, 3, 1)} eventSettings={eventSettings} group={group}>
    <ViewsDirective>
      <ViewDirective option='Day' />
      <ViewDirective option='Week' />
      <ViewDirective option='TimelineWeek' />
      <ViewDirective option='TimelineMonth' />
    </ViewsDirective>
    <ResourcesDirective>
      <ResourceDirective field='OwnerId' title='Owner' name='Owners' allowMultiple={true} dataSource={ownerData} textField='OwnerText' idField='Id' colorField='OwnerColor'>
      </ResourceDirective>
    </ResourcesDirective>
    <Inject services={[Day, Week, TimelineViews, TimelineMonth]} />
  </ScheduleComponent>)
};
const root = ReactDOM.createRoot(document.getElementById('schedule'));
root.render(<App />);
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Schedule</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-calendars/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/25.1.35/ej2-react-schedule/styles/material.css" rel="stylesheet" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <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>
     <style>
        #loader {
            color: #008cff;
            height: 40px;
            left: 45%;
            position: absolute;
            top: 45%;
            width: 30%;
        }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <div id='schedule'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>

You can refer to our React Scheduler feature tour page for its groundbreaking feature representations. You can also explore our React Scheduler example to knows how to present and manipulate data.