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Accessibility

ARIA attributes

Tab component is designed by considering WAI-ARIA standard. Tab is supported with ARIA Accessibility which is accessible by on-screen readers, and other assistive technology devices. The following list of attributes are added in the Tab.

Roles and Attributes Functionalities
tablist This is set to role attribute in the Tab element that describes actual role of the element.
tabpanel This is set to role attribute for the Tab content that describes the role for viewing the active content.
presentation This is set to role attribute for nested elements in the Tab.
aria-orientation It indicates the Tab header orientation. Default value of this attribute is horizontal.
aria-activedescendant It indicates the current active child of the Tab component.
aria-haspopup It indicates the popup mode in the Tab. The default value of this attribute is false. If popup mode is enabled, the attribute value is set to true.
aria-disabled It indicates the disabled state of the Tab.
aria-selected It indicates the selection state for Tab items. Active Tab is set to true for this attribute.
aria-hidden It indicates the hidden element of the Tab.
aria-controls It indicates the associated Tabpanel for the header.
aria-labelledby It indicates the associated Tab header for the content.

Keyboard interaction

By default, keyboard navigation is enabled. This component implements keyboard navigation support by following the WAI-ARIA practices. Once focused on the active Tab element, you can use the following key combination for interacting with the Tab.

Key Description
Left Moves focus to the previous Tab. If focus is on the first Tab, the focus will not move to any Tab.
Right Moves focus to the next Tab. If focus is on the last Tab element, the focus will not move to any Tab.
Enter or Space Selects the Tab if it is not selected. Opens the popup dropdown icon if it is focussed. Select the Tab item as active when popup item is focussed.
Esc(Escape) Closes the popup if popup is in opened state.
Down or Up When the popup is open and focused, it will move to previous/next Tab items of the popup in the vertical direction.
Home Moves focus to the first Tab.
End Moves focus to the last Tab.
Shift + F10 If popup mode is enabled, it opens the popup when the Tab is focused.
Delete Deletes the Tab, if close button is enabled in Tab header.
Source
Preview
index.jsx
index.tsx
index.html
import { TabComponent, TabItemDirective, TabItemsDirective } from '@syncfusion/ej2-react-navigations';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
export default class ReactApp extends React.Component {
    constructor() {
        super(...arguments);
        this.headerText = [{ text: "HTML" }, { text: "C Sharp(C#)" }, { text: "Java" }, { text: "VB.Net" }, { text: "Xamarin" }, { text: "ASP.NET" }, { text: "ASP.NET MVC" }, { text: "JavaScript" }];
    }
    content0() {
        return <div>
      HyperText Markup Language, commonly referred to as HTML, is the standard markup
      language used to create web pages. Along with CSS, and JavaScript, HTML is a cornerstone
      technology, used by most websites to create visually engaging web pages, user interfaces
      for web applications, and user interfaces for many mobile applications.[1] Web browsers
      can read HTML files and render them into visible or audible web pages. HTML describes
      the structure of a website semantically along with cues for presentation, making it a
      markup language, rather than a programming language.
      </div>;
    }
    content1() {
        return <div>
      'C# is intended to be a simple, modern, general-purpose, object-oriented
      programming language. Its development team is led by Anders Hejlsberg. The most recent
      version is C# 5.0, which was released on August 15, 2012.
      </div>;
    }
    content2() {
        return <div>
      Java is a set of computer software and specifications developed by Sun Microsystems,
      later acquired by Oracle Corporation, that provides a system for developing application
      software and deploying it in a cross-mobile phones to platform computing environment. Java
      is used in a wide variety of computing platforms from embedded devices and enterprise servers
      and supercomputers. While less common, Java applets run in secure, sandboxed environments to
      provide many features of native applications and can be embedded in HTML pages.
      </div>;
    }
    content3() {
        return <div>
      The command-line compiler, VBC.EXE, is installed as part of the freeware .NET
      Framework SDK. Mono also includes a command-line VB.NET compiler. The most recent version
      is VB 2012, which was released on August 15, 2012.
      </div>;
    }
    content4() {
        return <div>
      Xamarin is a San Francisco, California based software company created in May
      2011[3] by the engineers that created Mono,[4] Mono for Android and MonoTouch that are
      cross-platform implementations of the Common Language Infrastructure (CLI) and Common
      Language Specifications (often called Microsoft .NET). With a C#-shared codebase,developers
      can use Xamarin tools to write native Android, iOS, and Windows apps with native user interfaces
      and share code across multiple platforms.[5] Xamarin has over 1 million developers in more
      than 120 countries around the World as of May 2015.'
      </div>;
    }
    content5() {
        return <div>
        ASP.NET is an open-source server-side web application framework designed for web
        development to produce dynamic web pages. It was developed by Microsoft to allow programmers
        to build dynamic web sites, web applications and web services. It was first released in January
        2002 with version 1.0 of the .NET Framework, and is the successor to Microsoft\'\s Active Server
        Pages (ASP) technology. ASP.NET is built on the Common Language Runtime (CLR), allowing
        programmers to write ASP.NET code using any supported .NET language. The ASP.NET SOAP extension
        framework allows ASP.NET components to process SOAP messages.
      </div>;
    }
    content6() {
        return <div>
        The ASP.NET MVC is a web application framework developed by Microsoft, which implements
        the model–view–controller (MVC) pattern. It is open-source software, apart from the ASP.NET Web
        Forms component which is proprietary. In the later versions of ASP.NET, ASP.NET MVC, ASP.NET web
        API, and ASP.NET Web Pages (a platform using only Razor pages) will merge into a unified MVC 6.
        The project is called ASP.NET vNext.
      </div>;
    }
    content7() {
        return <div>
        JavaScript (JS) is an interpreted computer programming language. It was originally
        implemented as part of web browsers so that client-side scripts could interact with the
        user, control the browser, communicate asynchronously, and alter the document content that
        was displayed.[5] More recently, however, it has become common in both game development
        and the creation of desktop applications.
      </div>;
    }
    render() {
        return (<TabComponent heightAdjustMode='Auto' overflowMode='Scrollable'>
        <TabItemsDirective>
          <TabItemDirective header={this.headerText[0]} content={this.content0}/>
          <TabItemDirective header={this.headerText[1]} content={this.content1}/>
          <TabItemDirective header={this.headerText[2]} content={this.content2}/>
          <TabItemDirective header={this.headerText[3]} content={this.content3}/>
          <TabItemDirective header={this.headerText[4]} content={this.content4}/>
          <TabItemDirective header={this.headerText[5]} content={this.content5}/>
          <TabItemDirective header={this.headerText[6]} content={this.content6}/>
          <TabItemDirective header={this.headerText[7]} content={this.content7}/>
        </TabItemsDirective>
      </TabComponent>);
    }
}
ReactDOM.render(<ReactApp />, document.getElementById('element'));
import { TabComponent, TabItemDirective, TabItemsDirective } from '@syncfusion/ej2-react-navigations';
import * as React from 'react';
import * as ReactDOM from 'react-dom';

export default class ReactApp extends React.Component<{}, {}> {
  public headerText: any = [{ text: "HTML" }, { text: "C Sharp(C#)" }, { text: "Java" }, { text: "VB.Net" }, { text: "Xamarin" }, { text: "ASP.NET" }, { text: "ASP.NET MVC" }, { text: "JavaScript" }];

  public content0() {
    return <div>
      HyperText Markup Language, commonly referred to as HTML, is the standard markup
      language used to create web pages. Along with CSS, and JavaScript, HTML is a cornerstone
      technology, used by most websites to create visually engaging web pages, user interfaces
      for web applications, and user interfaces for many mobile applications.[1] Web browsers
      can read HTML files and render them into visible or audible web pages. HTML describes
      the structure of a website semantically along with cues for presentation, making it a
      markup language, rather than a programming language.
      </div>;
  }
  public content1() {
    return <div>
      'C# is intended to be a simple, modern, general-purpose, object-oriented
      programming language. Its development team is led by Anders Hejlsberg. The most recent
      version is C# 5.0, which was released on August 15, 2012.
      </div>;
  }
  public content2() {
    return <div>
      Java is a set of computer software and specifications developed by Sun Microsystems,
      later acquired by Oracle Corporation, that provides a system for developing application
      software and deploying it in a cross-mobile phones to platform computing environment. Java
      is used in a wide variety of computing platforms from embedded devices and enterprise servers
      and supercomputers. While less common, Java applets run in secure, sandboxed environments to
      provide many features of native applications and can be embedded in HTML pages.
      </div>;
  }
  public content3() {
    return <div>
      The command-line compiler, VBC.EXE, is installed as part of the freeware .NET
      Framework SDK. Mono also includes a command-line VB.NET compiler. The most recent version
      is VB 2012, which was released on August 15, 2012.
      </div>;
  }
  public content4() {
    return <div>
      Xamarin is a San Francisco, California based software company created in May
      2011[3] by the engineers that created Mono,[4] Mono for Android and MonoTouch that are
      cross-platform implementations of the Common Language Infrastructure (CLI) and Common
      Language Specifications (often called Microsoft .NET). With a C#-shared codebase,developers
      can use Xamarin tools to write native Android, iOS, and Windows apps with native user interfaces
      and share code across multiple platforms.[5] Xamarin has over 1 million developers in more
      than 120 countries around the World as of May 2015.'
      </div>;
  }
  public content5() {
    return <div>
        ASP.NET is an open-source server-side web application framework designed for web
        development to produce dynamic web pages. It was developed by Microsoft to allow programmers
        to build dynamic web sites, web applications and web services. It was first released in January
        2002 with version 1.0 of the .NET Framework, and is the successor to Microsoft\'\s Active Server
        Pages (ASP) technology. ASP.NET is built on the Common Language Runtime (CLR), allowing
        programmers to write ASP.NET code using any supported .NET language. The ASP.NET SOAP extension
        framework allows ASP.NET components to process SOAP messages.
      </div>;
  }
  public content6() {
    return <div>
        The ASP.NET MVC is a web application framework developed by Microsoft, which implements
        the model–view–controller (MVC) pattern. It is open-source software, apart from the ASP.NET Web
        Forms component which is proprietary. In the later versions of ASP.NET, ASP.NET MVC, ASP.NET web
        API, and ASP.NET Web Pages (a platform using only Razor pages) will merge into a unified MVC 6.
        The project is called ASP.NET vNext.
      </div>;
  }
  public content7() {
    return <div>
        JavaScript (JS) is an interpreted computer programming language. It was originally
        implemented as part of web browsers so that client-side scripts could interact with the
        user, control the browser, communicate asynchronously, and alter the document content that
        was displayed.[5] More recently, however, it has become common in both game development
        and the creation of desktop applications.
      </div>;
  }

  public render() {
    return (
      <TabComponent heightAdjustMode='Auto' overflowMode='Scrollable'>
        <TabItemsDirective>
          <TabItemDirective header={this.headerText[0]} content={this.content0} />
          <TabItemDirective header={this.headerText[1]} content={this.content1} />
          <TabItemDirective header={this.headerText[2]} content={this.content2} />
          <TabItemDirective header={this.headerText[3]} content={this.content3} />
          <TabItemDirective header={this.headerText[4]} content={this.content4} />
          <TabItemDirective header={this.headerText[5]} content={this.content5} />
          <TabItemDirective header={this.headerText[6]} content={this.content6} />
          <TabItemDirective header={this.headerText[7]} content={this.content7} />
        </TabItemsDirective>
      </TabComponent>
    );
  }
}
ReactDOM.render(<ReactApp />, document.getElementById('element'));
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Tab</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="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/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='container'>
        <div id='element'>
                <div id='loader'>Loading</div>
        </div>
    </div>
</body>

</html>