Accessibility in ASP.NET MVC Toolbar Component

5 Jan 20245 minutes to read

The Toolbar component has been designed, keeping in mind the WAI-ARIA specifications, and applying the WAI-ARIA roles, states, and properties along with keyboard support for people who use assistive devices. WAI-ARIA accessibility support is achieved through attributes like aria-label, and aria-orientation, It provides information about elements in a document for assistive technology. The component implements keyboard navigation support by following the WAI-ARIA practices, and has been tested in major screen readers.

The accessibility compliance for the Toolbar component is outlined below.

Accessibility Criteria Compatibility
WCAG 2.2 Support Yes
Section 508 Support Yes
Screen Reader Support Yes
Right-To-Left Support Yes
Color Contrast Yes
Mobile Device Support Yes
Keyboard Navigation Support Yes
Accessibility Checker Validation Yes
Axe-core Accessibility Validation Yes
Yes - All features of the component meet the requirement.
Intermediate - Some features of the component do not meet the requirement.
No - The component does not meet the requirement.

ARIA attributes

Toolbar element is assigned with the role of toolbar.

Property Functionalities
role=”toolbar” Attribute is set to the ToolBar element describes the actual role of the element.
aria-orientation Attribute is set to the ToolBar element to indicates the ToolBar orientation. Default value is horizontal.
aria-label Attribute is set to ToolBar element describes the purpose of the set of toolbar.
aria-expanded Attribute is set to the ToolBar Popup element to indicates the expanded state of the popup.
aria-haspopup Attribute is set to the popup element to indicates the popup mode of the Toolbar. Default value is false. When popup mode is enabled, attribute value has to be changed to true.
aria-disabled Attribute set to the ToolBar element to indicates the disabled state of the ToolBar.

Keyboard interaction

Keyboard navigation is enabled by default. Possible keys are

Key Description
Left Focuses the previous element.
Right Focuses the next element.
Enter When focused on a ToolBar command, clicking the key triggers the click of Toolbar element. When popup drop-down icon is focused, the popup opens.
Esc(Escape) Closes popup.
Down Focuses the next popup element.
Up Focuses the previous popup element.
Home Moves focus to the first Toolbar.
End Moves focus to the last Toolbar.
Tab To Move focus through the interactive elements.
Shift + Tab To Move focus through the interactive elements.

Ensuring accessibility

The Toolbar component’s accessibility levels are ensured through an accessibility-checker and axe-core software tools during automated testing.

The accessibility compliance of the Toolbar component is shown in the following sample. Open the sample in a new window to evaluate the accessibility of the Toolbar component with accessibility tools.

See also