Customization in EJ2 JavaScript Calendar control

26 Apr 202312 minutes to read

Each day cell of the Calendar can be customized by using the renderDayCell
event.

The following section demonstrates how to disable or highlight specific dates in a Calendar.

Disable weekends

You can disable weekends of every month in a Calendar by using the renderDayCell event. The renderDayCell event offers the following arguments on each day cell creation to help you disable the dates.

View Description
date Defines the current date of the Calendar.
isDisabled Specifies whether the current date is to be disabled or not.
isOutOfRange Defines whether the current date is out of range or not.

The following example demonstrates how to disable weekends of every month.

ej.base.enableRipple(true);
   
   var calendar = new ej.calendars.Calendar({
         renderDayCell: disabledDate,
         value: new Date()
    });
    function disabledDate(args) {
    if (args.date.getDay() === 0 || args.date.getDay() === 6) {
        //Set 'true' to disable the weekends.
        args.isDisabled = true;
    }
}
    calendar.appendTo('#element');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 Calendar 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">
    <!--style reference from the Calendar component-->
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-base/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-calendars/styles/material.css" rel="stylesheet">
    <!--style reference from app-->
    <link href="styles.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/29.1.33/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <!--element which is going to render the Calendar-->
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Day cell format

You can also highlight specific dates by adding custom CSS or element to the day cell by using the renderDayCell event.

You can customize the appearance of the Calendar by overriding the existing styles. The following list of CSS class names are used to customize the Calendar component.

Class Name Description
e-calendar Applied to the Calendar.
e-header Applied to the header.
e-title Applied to the title.
e-icon-container Applied to the previous and next icon container.
e-prev Applied to the previous icon.
e-next Applied to the next icon.
e-weekend Applied to weekends.
e-other-month Applied to days of other months.
e-day Applied to each day cell.
e-selected Applied to the selected dates.
e-disabled Applied to the disabled dates.

The following example highlights the World Health Day (every 7th April) and World Forest Day (every 21st March) by using the
custom icon and ToolTip.

ej.base.enableRipple(true);
   
   var calendar = new ej.calendars.Calendar({
      renderDayCell: customDates,
    value: new Date('03/10/2017')
    });

    function customDates(args) {
    //Defines the custom HTML element to be added.
   var span = document.createElement('span');
    //Uses "e-icons" class name to load Essential JS 2 built-in icons.
    span.setAttribute('class', 'e-icons highlight-day');
    if (+args.date.getDate() === 7 && +args.date.getMonth() == 3) {
        //Appends the span element to day cell.
        args.element.appendChild(span);
        //Sets the custom tooltip to the special dates.
        args.element.setAttribute('title', 'World health day!');
        //Uses "special" class name to highlight special dates that you can refer in "styles.css".
        args.element.className = 'special';
    }
    if (+args.date.getDate() === 21 && +args.date.getMonth() == 2) {
        args.element.appendChild(span);
        args.element.className = 'special';
        //Sets the custom tooltip to the special dates.
        args.element.setAttribute('title', 'World forest day');
    }
}
    calendar.appendTo('#element');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 Calendar 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">
   <!--style reference from the Calendar component-->
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-base/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-buttons/styles/material.css" rel="stylesheet">     
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-calendars/styles/material.css" rel="stylesheet">
    <!--style reference from app-->
    <link href="styles.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/29.1.33/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <!--element which is going to render the Calendar-->
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Highlight weekends

You can highlight the weekends of every month in a Calendar by using thebrenderDayCell event. The following example demonstrates how to highlights the weekends of every month.

ej.base.enableRipple(true);
   
   var calendar = new ej.calendars.Calendar({
         renderDayCell: highlightDate,
         value: new Date()
    });
    function highlightDate(args) {
    if (args.date.getDay() === 0 || args.date.getDay() === 6) {
       //set 'true' to disable the weekends
       args.element.classList.add('e-highlightweekend');
    }
}
    calendar.appendTo('#element');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 Calendar 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">
    <!--style reference from the Calendar component-->
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-base/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.1.33/ej2-calendars/styles/material.css" rel="stylesheet">
    <!--style reference from app-->
    <link href="styles.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/29.1.33/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <!--element which is going to render the Calendar-->
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

See Also