@progress/wct-a11y-spec/dist/blazor/aria/datetimepicker_aria.md

Contains accessibility and keyboard navigation specification of Telerik and Kendo web components.

Out of the box, the Telerik UI for Blazor DateTimePicker provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.


The DateTimePicker is compliant with the [Web Content Accessibility Guidelines (WCAG) 2.2 AA](https://www.w3.org/TR/WCAG22/) standards and [Section 508](https://www.section508.gov/) requirements, follows the [Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA)](https://www.w3.org/WAI/ARIA/apg/) best practices for implementing the [keyboard navigation](#keyboard-navigation) for its `component` role, provides options for managing its focus and is tested against the most popular screen readers.

## WAI-ARIA


This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any.

### Input element

| 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-required=true` | The attribute is rendered only when the DateTimePicker is in a `form` HTML element and announces the required state of the component. |
|  | `aria-describedby=.k-form-hint id/.k-form-error id` | Points to the hint for the input, or if the input is invalid, to the error message. This attribute should only be present when a hint is set or when the input is invalid. |
|  | `aria-haspopup=dialog` | Indicates the component has a Dialog Popup. |
|  | `aria-expanded=true/false` | Announces whether the Popup is visible or not. |
|  | `aria-controls=.k-calendar-container id` | Points to the popup element. Signifies that the `combobox` element controls the Calendar `grid`. |
|  | `aria-activedescendant=.k-calendar-td.k-focus id` | Points to the focused item (date/month/year/hour/minute) in the Calendar Popup or the Time Popup. Should only be present when the Popup is open. |
|  | `readonly=readonly` or `aria-readonly=true` | Attribute is rendered only when the DateTimePicker is readonly. |
|  | `aria-invalid=true` | Attribute is rendered only when the DateTimePicker is in form and announces the valid state of the component. |
|  | `tabindex=0` | The element should be focusable. |
| `.k-disabled .k-input-inner` | `disabled=disabled` or `aria-disabled=true` | Attribute is rendered only when the DateTimePicker is disabled. |
| `.k-input-button` | `role=button` or `nodeName=button` | The element should either be a `<button>` element or should have `role="button"` assigned. |
|  | `aria-label` | The button needs an accessible name to be assigned to it. |
|  | `tabindex=-1` | Button element should not be focusable. |
| `.k-datetimepicker.k-disabled .k-button` | `disabled` or `aria-disabled` | Attribute is rendered only when the picker is disabled. |

### Calendar Popup


The Calendar in the Popup element of the component should implement the specification for the **Calendar** component.

[Calendar accessibility specification]({{calendar_a11y_link}})

### Popup Date/Time View Chooser


The Date/Time view chooser in the Popup element of the component should implement the specification for the **ButtonGroup** component.

[ButtonGroup accessibility specification]({{buttongroup_a11y_link}})

### TimePicker Popup


Time Popup implementation should follow the specification for the TimePicker component.

[TimePicker accessibility specification]({{timepicker_a11y_link}})

## Resources

[WAI ARIA specification for combobox](https://www.w3.org/TR/wai-aria-1.2/#combobox)

[WAI ARIA specification for spinbutton](https://www.w3.org/TR/wai-aria-1.2/#spinbutton)

[ARIA practices Date Picker Dialog Example](https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/datepicker-dialog.html)

## Section 508


The DateTimePicker is fully compliant with the [Section 508 requirements](http://www.section508.gov/).

## Testing


The DateTimePicker has been extensively tested automatically with [axe-core](https://github.com/dequelabs/axe-core) and manually with the most popular screen readers.

> To report any accessibility issues, contact the team through the [Telerik Support System](https://www.telerik.com/account/support-center).

### Screen Readers


The DateTimePicker has been tested with the following screen readers and browsers combinations:

| Environment | Tool |
| ----------- | ---- |
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |