JavaScript/jQuery Button - Accessibility

Accessibility Features Overview

NOTE
The overall accessibility level of your application depends on the Button features 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 Button 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 Button component:

Key Action
Enter or Space Identical to a click.

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

JavaScript
  • function registerKeyHandlers () {
  • const button = $("#buttonContainer").dxButton("instance");
  • button.registerKeyHandler("backspace", function(e) {
  • // The argument "e" contains information on the event
  • });
  • button.registerKeyHandler("space", function(e) {
  • // ...
  • });
  • }

Screen Reader Support

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

The Button's aria label depends on the properties you use. If you specify the text property, its value is copied to the aria-label. If you do not specify text, but set the icon property, the icon can affect the aria label, depending on the value:

  • SVG
    The content of the title tag is copied to the aria label.

  • DevExtreme icon, font icon
    The icon name is copied to the aria label.

  • Path to the icon file
    The file name is copied to the aria label.

In other cases, use elementAttr to specify the aria-label directly.