Accessibility Features Overview
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 Autocomplete 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 Autocomplete component:
Key | Action |
---|---|
Alt + ↓ | Opens the drop-down menu. |
Alt + ↑ / Esc | Closes the drop-down menu. |
↑ / ↓ | Moves focus to the previous/next menu item. |
Page Up / Page Down | Moves focus to the first/last menu item. |
Enter | Selects focused menu item. |
Use the registerKeyHandler(key, handler) method to implement a custom handler for a key.
jQuery
function registerKeyHandlers () { const autocomplete = $("#autocompleteContainer").dxAutocomplete("instance"); autocomplete.registerKeyHandler("backspace", function(e) { // The argument "e" contains information on the event }); autocomplete.registerKeyHandler("space", function(e) { // ... }); }
Angular
import { ..., ViewChild, AfterViewInit } from '@angular/core'; import { DxAutocompleteModule, DxAutocompleteComponent } from 'devextreme-angular'; // ... export class AppComponent implements AfterViewInit { @ViewChild(DxAutocompleteComponent, { static: false }) autocomplete: DxAutocompleteComponent; // Prior to Angular 8 // @ViewChild(DxAutocompleteComponent) autocomplete: DxAutocompleteComponent; ngAfterViewInit () { this.autocomplete.instance.registerKeyHandler('backspace', function(e) { // The argument "e" contains information on the event }); this.autocomplete.instance.registerKeyHandler('space', function(e) { // ... }); } } @NgModule({ imports: [ // ... DxAutocompleteModule ], // ... })
Vue
<template> <DxAutocomplete :ref="myAutocompleteRef" /> </template> <script> import 'devextreme/dist/css/dx.light.css'; import DxAutocomplete from 'devextreme-vue/autocomplete'; const myAutocompleteRef = 'my-autocomplete'; export default { components: { DxAutocomplete }, data() { return { myAutocompleteRef } }, computed: { autocomplete: function() { return this.$refs[myAutocompleteRef].instance; } }, mounted: function() { this.autocomplete.registerKeyHandler('backspace', function(e) { // The argument "e" contains information on the event }); this.autocomplete.registerKeyHandler('space', function(e) { // ... }); } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import { Autocomplete } from 'devextreme-react/autocomplete'; class App extends React.Component { constructor(props) { super(props); this.autocompleteRef = React.createRef(); } render() { return ( <Autocomplete ref={this.autocompleteRef} /> ); } get autocomplete() { return this.autocompleteRef.current.instance; } componentDidMount() { this.autocomplete.registerKeyHandler('backspace', function(e) { // The argument "e" contains information on the event }); this.autocomplete.registerKeyHandler('space', function(e) { // ... }); } } export default App;
Screen Reader Support
The Autocomplete component supports screen readers and complies to WAI-ARIA standards.
To improve accessibility, use the inputAttr property to specify aria-label for the component. You do not need to specify aria-label
if you use label.
If you have technical questions, please create a support ticket in the DevExpress Support Center.