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| 2 | The Telerik UI for Blazor DatePicker component is [WCAG 2.1 AAA](https://www.w3.org/TR/WCAG21/) and [Section 508](http://www.section508.gov/) compliant. The component also follows the [WAI-ARIA best practices](https://www.w3.org/WAI/ARIA/apg/) for implementing the keyboard navigation for its component role, and is tested against the popular screen readers.
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| 3 |
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| 4 | ## Wai-Aria
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| 5 |
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| 6 | ### DatePicker wrapper
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| 7 |
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| 8 | | Selector | Attribute | Usage |
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| 9 | | -------- | --------- | ----- |
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| 10 | | .k-input-inner | `role=combobox` | The input element should follow the `combobox` specification. |
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| 11 | | | `label for=` or `aria-label` or `aria-labelledby` | The input needs an accessible name to be assigned to it. |
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| 12 | | | `aria-haspopup=grid` | Indicates the component has a Calendar Popup that implements `role="grid"`. |
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| 13 | | | `aria-expanded=true/false` | Announces whether the Popup is visible or not. |
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| 14 | | | `aria-controls=.k-animation-container id` | Points to the popup element. Signifies that the `combobox` element controls the Calendar `grid`. |
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| 15 | | | `aria-activedescendent=.k-calendar-td id` | Points to the focused item (date/month/year) in the Calendar Popup. Should only be present when the Popup is open. |
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| 16 | | | `disabled` or `aria-disabled` | Attribute is rendered only when the DatePicker is disabled. |
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| 17 | | | `readonly` or `aria-readonly` | Attribute is rendered only when the DatePicker is readonly. |
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| 18 | | | `aria-invalid=true` | Attribute is rendered only when the combobox is in form and announces the valid state of the component. |
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| 19 | | | `tabindex=0` | The element must be focusable. |
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| 20 | | .k-input-button | `role=button` or `nodeName=button` | The element should either be a `<button>` element or should have `role="button"` assigned. |
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| 21 | | | `aria-label` | The button needs an accessible name to be assigned to it. |
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| 22 | | | `tabindex=-1` | Button element should not be focusable. |
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| 23 |
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| 24 | ### Calendar Popup
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| 25 |
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| 26 |
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| 27 | The Calendar in the Popup element of the component should implement the specification for the **Calendar** component.
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| 28 |
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| 29 | [Calendar accessibility specification]({{calendar_a11y_link}})
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| 30 |
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| 31 | ## Resources
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| 32 |
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| 33 | [WAI ARIA specification for combobox](https://www.w3.org/TR/wai-aria-1.2/#combobox)
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| 34 |
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| 35 | [ARIA practices Date Picker Dialog Example](https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/datepicker-dialog.html)
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| 36 |
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| 37 | ## Section 508
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| 38 |
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| 39 |
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| 40 | The DatePicker is compliant with the [Section 508](http://www.section508.gov/) requirements
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| 41 |
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| 42 | ## Testing
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| 43 |
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| 44 |
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| 45 | The component has been extensively tested automatically with static code analyzers and manually with the most popular screen readers.
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| 46 |
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| 47 | > Any Accessibility Issues could be reported in [Telerik Support System](https://www.telerik.com/account/support-center).
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| 48 |
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| 49 | ### Screen Readers
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| 50 |
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| 51 | | Environment | Tool |
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| 52 | | ----------- | ---- |
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| 53 | | Firefox | NVDA |
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| 54 | | Chrome | JAWS |
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| 55 | | Microsoft Edge | JAWS |
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