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Getting started in EJ2 JavaScript Radio button control

10 Feb 202612 minutes to read

This section explains the steps required to create a simple Essential^® JS 2 Radio button and demonstrate the basic usage of the Radio button control in a JavaScript application.

Dependencies

The list of dependencies required to use the Radio button component in your application is given below:

|-- @syncfusion/ej2-buttons
    |-- @syncfusion/ej2-base

Setup for local environment

Refer to the following steps to set up your local environment.

Step 1: Create a root folder named my-app for your application.

Step 2: Create a my-app/resources folder to store local scripts and styles files.

Step 3: Open Visual Studio Code and create my-app/index.js and my-app/index.html files to initialize the Essential^® JS 2 Radio button control.

Adding Syncfusion^® resources

The Essential^® JS 2 Radio button control can be initialized by using either of the following ways.

Using local script and style.
Using CDN link for script and style.

Using local script and style

To use local scripts and styles for Syncfusion^® Radio button, you can follow these steps:

Step 1: Create an app folder quickstart for getting started.

Step 2: Obtain the global scripts and styles from the Essential Studio^® JavaScript (Essential^® JS 2) build installed location.

Syntax:

Dependency Script: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\{DEPENDENCY_PACKAGE_NAME}\dist\global\{DEPENDENCY_PACKAGE_NAME}.min.js

Control Script: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\{PACKAGE_NAME}\dist\global\{PACKAGE_NAME}.min.js

Dependency Styles: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\{DEPENDENCY_PACKAGE_NAME}\styles\material.css

Control Styles: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\{PACKAGE_NAME}\styles\material.css

Example:

Dependency Script: C:\Program Files (x86)\Syncfusion\Essential Studio\JavaScript - EJ2\16.3.0.17\Web (Essential JS 2)\JavaScript\ej2-base\dist\global\ej2-base.min.js

Control Script: C:\Program Files (x86)\Syncfusion\Essential Studio\JavaScript - EJ2\16.3.0.17\Web (Essential JS 2)\JavaScript\ej2-buttons\dist\global\ej2-buttons.min.js

Dependency Styles: C:\Program Files (x86)\Syncfusion\Essential Studio\JavaScript - EJ2\16.3.0.17\Web (Essential JS 2)\JavaScript\ej2-base\styles\material.css

Control Styles: C:\Program Files (x86)\Syncfusion\Essential Studio\JavaScript - EJ2\16.3.0.17\Web (Essential JS 2)\JavaScript\ej2-buttons\styles\material.css

The following script and style file contains all Syncfusion^® JavaScript (ES5) UI control resources in a single file:

Scripts: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\ej2\dist\ej2.min.js

Styles: **(installed location)**\Syncfusion\Essential Studio\JavaScript - EJ2\{RELEASE_VERSION}\Web (Essential JS 2)\JavaScript\ej2\material.css

Use the Custom Resource Generator (CRG) online web tool to generate custom scripts and styles for specific controls. This tool is useful for combining required control scripts and styles in a single file.

Step 3: Create a folder ~/quickstart/resources and copy/paste the global scripts and styles from the above installed location to ~/quickstart/resources/package corresponding package location.

Step 4: Create a HTML page (index.html) in ~/quickstart/index.html location and add the Essential^® JS 2 script and style references.

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>Essential JS 2</title>
        <!-- Essential JS 2 Base's material theme (Dependency Styles) -->
        <link href="resources/base/material.css" rel="stylesheet" type="text/css"/>
        <!-- Essential JS 2 RadioButton's material theme (Control Styles) -->
        <link href="resources/buttons/material.css" rel="stylesheet" type="text/css"/>

        <!-- Essential JS 2 Base's global script (Dependency Script) -->
        <script src="resources/base/ej2-base.min.js" type="text/javascript"></script>
        <!-- Essential JS 2 RadioButton's global script (Control Script) -->
        <script src="resources/buttons/ej2-buttons.min.js" type="text/javascript"></script>
    </head>
    <body>
    </body>
</html>

Step 5: Now, add the RadioButton element and initiate the Syncfusion^® Javascript RadioButton control in the ~/quickstart/index.html by using following code

<!DOCTYPE html>
  <html xmlns="http://www.w3.org/1999/xhtml">
      <head>
          <title>Essential JS 2</title>
          <!-- Essential JS 2 Base's material theme (Dependency Styles) -->
          <link href="resources/base/material.css" rel="stylesheet" type="text/css"/>
          <!-- Essential JS 2 RadioButton's material theme (Control Styles) -->
          <link href="resources/buttons/material.css" rel="stylesheet" type="text/css"/>

          <!-- Essential JS 2 Base's global script (Dependency Script) -->
          <script src="resources/base/ej2-base.min.js" type="text/javascript"></script>
          <!-- Essential JS 2 RadioButton's global script (Control Script) -->
          <script src="resources/buttons/ej2-buttons.min.js" type="text/javascript"></script>
      </head>
       <body>
            <!--element which is going to render-->
            <input id="element" type="radio"/>
            <script>
                // Initialize RadioButton control.
                var radiobutton = new ej.buttons.RadioButton({ label: 'Default' });

                // Render initialized RadioButton.
                radiobutton.appendTo('#element');
            </script>
       </body>
  </html>

Step 6: Run the index.html in a web browser to render the Syncfusion^® JavaScript RadioButton control.

Using CDN link for script and style reference

Step 1: Create an app folder quickstart for getting started.

Step 2: The Essential^® JS 2 control’s global scripts and styles are already hosted in the below CDN link formats.

Syntax:

Dependency Script: https://cdn.syncfusion.com/ej2/{DEPENDENCY_PACKAGE_NAME}/dist/global/{PACKAGE_NAME}.min.js

Control Script: https://cdn.syncfusion.com/ej2/{PACKAGE_NAME}/dist/global/{PACKAGE_NAME}.min.js

Dependency Styles: https://cdn.syncfusion.com/ej2/{DEPENDENCY_PACKAGE_NAME}/styles/material.css

Control Styles: https://cdn.syncfusion.com/ej2/{PACKAGE_NAME}/styles/material.css

Example:

Script: https://cdn.syncfusion.com/ej2/ej2-buttons/dist/global/ej2-buttons.min.js

Styles: https://cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css

Step 3: Create a HTML page (index.html) in ~/quickstart/index.html location and add the CDN link references. Now, add the RadioButton element and initiate the Syncfusion^® Javascript RadioButton control in the index.html by using following code.

index.html
styles.css
<!DOCTYPE html>
  <html xmlns="http://www.w3.org/1999/xhtml">
  <head>
                
        <title>Essential JS 2</title>

        <!-- Essential JS 2 Base's material theme (Dependency Styles) -->
        <link href="https://cdn.syncfusion.com/ej2/32.2.3/ej2-base/styles/material.css" rel="stylesheet" type="text/css"/>

        <!-- Essential JS 2 RadioButton's material theme (Control Styles) -->
        <link href="https://cdn.syncfusion.com/ej2/32.2.3/ej2-buttons/styles/material.css" rel="stylesheet" type="text/css"/>

        <!-- Essential JS 2 Base's global script (Dependency Script) -->
        <script src="https://cdn.syncfusion.com/ej2/32.2.3/ej2-base/dist/global/ej2-base.min.js" type="text/javascript"></script>

        <!-- Essential JS 2 RadioButton's global script (Control Script) -->
        <script src="https://cdn.syncfusion.com/ej2/32.2.3/ej2-buttons/dist/global/ej2-buttons.min.js" type="text/javascript"></script>

   <script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
   <body>
       <!--element which is going to render-->
        <input id="element1" type="radio"/>
        <input id="element2" type="radio"/>
        <script>
          ej.base.enableRipple(true);

          // Initialize RadioButton control.
          var radiobutton = new ej.buttons.RadioButton({ label: 'Option 1', name: 'default'});
          // Render initialized RadioButton.
          radiobutton.appendTo('#element1');

          radiobutton = new ej.buttons.RadioButton({ label: 'Option 2', name: 'default'});
          radiobutton.appendTo('#element2');
        </script>
   </body>
  </html>
#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

.e-radio-wrapper {
  margin-top: 18px;
}

li {
  list-style: none;
}

Step 4: Run the index.html in a web browser to render the Syncfusion^® JavaScript RadioButton control.

Change the RadioButton state

The Essential^® JS 2 RadioButton contains 2 states visually, they are as follows:

Checked
Unchecked

The RadioButton checked property is used to handle the checked and unchecked state. In the checked state an inner circle will be added to the visualization of RadioButton.

index.html
styles.css
<!DOCTYPE html>
  <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
                
        <title>Essential JS 2</title>

        <!-- Essential JS 2 Base's material theme (Dependency Styles) -->
        <link href="https://cdn.syncfusion.com/ej2/32.2.3/ej2-base/styles/material.css" rel="stylesheet" type="text/css"/>

        <!-- Essential JS 2 RadioButton's material theme (Control Styles) -->
        <link href="https://cdn.syncfusion.com/ej2/32.2.3/ej2-buttons/styles/material.css" rel="stylesheet" type="text/css"/>

        <!-- Essential JS 2 Base's global script (Dependency Script) -->
        <script src="https://cdn.syncfusion.com/ej2/32.2.3/ej2-base/dist/global/ej2-base.min.js" type="text/javascript"></script>

        <!-- Essential JS 2 RadioButton's global script (Control Script) -->
        <script src="https://cdn.syncfusion.com/ej2/32.2.3/ej2-buttons/dist/global/ej2-buttons.min.js" type="text/javascript"></script>

        <link href="styles.css" rel="stylesheet">
   <script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
   <body>
       <!--element which is going to render-->
        <input type="radio" id="radiobutton1"/>
        <input type="radio" id="radiobutton2"/>
        <script>
            ej.base.enableRipple(true);

            //checked state.
            var radiobutton = new ej.buttons.RadioButton({ label: 'Option 1', name: 'state', checked: true });
            radiobutton.appendTo('#radiobutton1');

            //unchecked state.
            radiobutton = new ej.buttons.RadioButton({ label: 'Option 2', name: 'state' });
            radiobutton.appendTo('#radiobutton2');
        </script>
   </body>
  </html>
#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

.e-radio-wrapper {
  margin-top: 18px;
}

li {
  list-style: none;
}

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How can I help you?

Getting started in EJ2 JavaScript Radio button control

Dependencies

Setup for local environment

Adding Syncfusion^® resources

Using local script and style

Using CDN link for script and style reference

Change the RadioButton state

See Also

How can I help you?

Getting started in EJ2 JavaScript Radio button control

Dependencies

Setup for local environment

Adding Syncfusion® resources

Using local script and style

Using CDN link for script and style reference

Change the RadioButton state

See Also

Adding Syncfusion^® resources