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Blazor TimePicker Accessibility

The Telerik UI for Blazor TimePicker is WCAG 2.1 AAA and Section 508 compliant. The component also follows the WAI-ARIA best practices for implementing the keyboard navigation for its component role, and is tested against the popular screen readers.

Wai-Aria

TimePicker wrapper

Selector Attribute Usage
.k-input-inner role=combobox The input element should follow the combobox specification.
label for or aria-label or aria-labelledby The input needs an accessible name to be assigned to it.
aria-expanded=true/false Announces whether the Popup is visible or not.
aria-haspopup=dialog Indicates the component has a Dialog Popup.
aria-controls=.k-animation-container id Points to the popup element. Signifies that the combobox element controls the dialog popup.
readonly or aria-readonly Attribute is rendered only when the DatePicker is readonly.
aria-invalid=true Attribute is rendered only when the picker is in form and announces the valid state of the component.
.k-disabled .k-input-inner disabled=disabled or aria-disabled=true Attribute is rendered only when the DatePicker is disabled.
.k-input-button role=button or nodeName=button The element must either be a <button> element or must have role=button assigned.
aria-label The button needs an accessible name to be assigned to it.
tabindex=-1 Button element must not be focusable.

SpinButton Elements on the Popup

Selector Attribute Usage
.k-time-list role=spinbutton The timelist elements must have spinbutton role assigned.
aria-label The spinbutton needs an accessible name to be assigned to it.
aria-valuetext The current selected value in the spinbutton as a text representation.
aria-valuenow The current selected value in the spinbutton.
aria-valuemin The minimum allowed value in the spinbutton.
aria-valuemax The maximum allowed value in the spinbutton.
.k-time-container role=none/presentation The immediate children elements of the spinbuttons should not be available for the assistive technologies.

AM/PM chooser in the Popup

Selector Attribute Usage
.k-time-list-wrapper:last-child .k-time-list role=listbox The element role indicates it is a listbox.
aria-label The listbox needs an accessible name to be assigned to it.
.k-time-list-wrapper:last-child .k-reset role=none/presentation The semantic role of the element must be negated.
.k-time-list-wrapper:last-child .k-item role=option The two available options in the listbox must be marked as such.

Resources

WAI-ARIA specification for combobox

WAI-ARIA specification for spinbutton

Section 508

The TimePicker is compliant with the Section 508 requirements

Testing

The component has been extensively tested automatically with static code analyzers and manually with the most popular screen readers.

Any Accessibility Issues could be reported in Telerik Support System.

Screen Readers

Environment Tool
Firefox NVDA
Chrome JAWS
Microsoft Edge JAWS

See Also

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