The MultiColumnComboBox is accessible by screen readers and provides full WAI-ARIA accessibility support.

WAI-ARIA Support

The MultiColumnComboBox 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 MultiColumnComboBox 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 MultiColumnComboBox 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 MultiColumnComboBox is compliant with the Section 508 requirements.


The following issues are related to the WAI-ARIA support limitations of browsers and screen readers: