Accessibility Support
Out of the box, the Telerik and Kendo UI Dialog provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.
The Dialog is compliant with the Web Content Accessibility Guidelines (WCAG) 2.2 standards and Section 508 requirements, follows the Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA) best practices for implementing the 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.
Dialog component
| Selector | Attribute | Usage |
|---|---|---|
.k-dialog | role=dialog | Announces the dialog role of the component. |
aria-labelledby=.k-dialog-titlebar id | Associate the title of the dialog. | |
aria-describedby=.k-dialog-content id | Associate the dialog content to the wrap element. | |
.k-overlay + .k-dialog | aria-modal=true | Announces that the dialog is modal. Attribute is added only when the dialog is modal. |
Predefined dialogs
| Selector | Attribute | Usage |
|---|---|---|
.k-dialog.k-prompt,.k-dialog.k-alert,.k-dialog.k-confirm | role=alertdialog | Announces the dialog role of the component. |
The dialog component should implement tab key trap to allow navigation in the dialog. Only the x button in the dialog element is included in the tab sequence. The dialog itself is not a focusable element. By default, on open the focus goes to the first focusable element in the content, or the primary action button if there is no focusable element in the content.
Keyboard Shortcuts
Button element
| Shortcut | Behavior |
|---|---|
Tab | Focus is moved between the elements in the dialog and is trapped into the component. |
Escape | Closes the dialog. When the dialog is modal, the focus should be returned to the element that triggered the open. |
Testing
The Dialog has been extensively tested automatically with axe-core and manually with the most popular screen readers.
Screen Readers
The Dialog has been tested with the following screen readers and browsers combinations:
| Environment | Tool |
|---|---|
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |
