JavaScript/jQuery TabPanel - Accessibility

Accessibility Features Overview

NOTE
The overall accessibility level of your application depends on the TabPanel features that you use.
Accessibility Requirement Support Level
Right-to-Left Support
Keyboard Navigation Support
Screen Reader Support
Contrast Color Theme
Mobile Device Support
Lighthouse Accessibility Validation
Axe Accessibility Validation
WAVE Accessibility Validation
Section 508 Support
WCAG 2.x Support
  • - All component features meet the requirement
  • - Some component features may not meet the requirement
  • - Accessibility requirement is not supported

Accessibility Standards Compliance

The TabPanel component complies to all Section 508 and WCAG 2.x standards criteria.

Keyboard Navigation

A user can use the following keys to interact with the TabPanel component:

Key Action
← Switches the UI component to the previous view.
→ Switches the UI component to the next view.

Use the registerKeyHandler(key, handler) method to implement a custom handler for a key.

jQuery
JavaScript
function registerKeyHandlers () {
    const tabPanel = $("#tabPanelContainer").dxTabPanel("instance");
    tabPanel.registerKeyHandler("backspace", function(e) {
        // The argument "e" contains information on the event
    });
    tabPanel.registerKeyHandler("space", function(e) {
        // ...
    });
}
Angular
TypeScript
import { ..., ViewChild, AfterViewInit } from '@angular/core';
import { DxTabPanelModule, DxTabPanelComponent } from 'devextreme-angular';
// ...
export class AppComponent implements AfterViewInit {
    @ViewChild(DxTabPanelComponent, { static: false }) tabPanel: DxTabPanelComponent;
    // Prior to Angular 8
    // @ViewChild(DxTabPanelComponent) tabPanel: DxTabPanelComponent;

    ngAfterViewInit () {
        this.tabPanel.instance.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.tabPanel.instance.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}
@NgModule({
    imports: [
        // ...
        DxTabPanelModule
    ],
    // ...
})
Vue
<template>
    <DxTabPanel :ref="myTabPanelRef" />
</template>
<script>
import 'devextreme/dist/css/dx.light.css';

import DxTabPanel from 'devextreme-vue/tab-panel';

const myTabPanelRef = 'my-tab-panel';

export default {
    components: {
        DxTabPanel
    },
    data() {
        return {
            myTabPanelRef
        }
    },
    computed: {
        tabPanel: function() {
            return this.$refs[myTabPanelRef].instance;
        }
    },
    mounted: function() {
        this.tabPanel.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.tabPanel.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}
</script>
React
App.js
import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import { TabPanel } from 'devextreme-react/tab-panel';

class App extends React.Component {
    constructor(props) {
        super(props);

        this.tabPanelRef = React.createRef();
    }

    render() {
        return (
            <TabPanel ref={this.tabPanelRef} />
        );
    }

    get tabPanel() {
        return this.tabPanelRef.current.instance;
    }

    componentDidMount() {
        this.tabPanel.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.tabPanel.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}

export default App;

Screen Reader Support

The TabPanel component supports screen readers and complies to WAI-ARIA standards.