Accessibility
The DropDownList is accessible by screen readers and provides full WAI-ARIA accessibility support.
WAI-ARIA Support
The DropDownList uses the aria-expanded, aria-selected, aria-disabled, aria-haspopup, aria-owns, aria-activedescendant and aria-hidden properties on the nested elements depending on the current state of the component and its options.
The DropDownList uses the listbox role. Each item from the popup list has an option role.
To move the focus to the current keyboard navigation position, the component uses the aria-activedescendant approach.
The DropDownList also follows the WAI-ARIA best practices for implementing the keyboard navigation for its component role and is tested against the popular screen readers.
Section 508
The DropDownList is compliant with the Section 508 requirements.
Limitations
The following issues are related to the WAI-ARIA support limitations of browsers and screen readers:
- Internet Explorer 10 and 11 work best with the Jaws screen reader. Other readers are not supported very well. For more information, refer to issue 817699.
- Microsoft Edge works best with Microsoft Narrator screen reader. For more information, refer to issue 8571350.