Blazor ProgressBar Accessibility
The Telerik UI for Blazor ProgressBar component is WCAG 2.1 AA 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
| Selector | Attribute | Usage |
|---|---|---|
| .k-progressbar | role=progressbar |
Sets the proper role for ProgressBar. |
aria-label or aria-labelledby
|
The Progressbar needs an accessible name to be assigned to it. | |
aria-valuenow |
Only present and required if the value is not indeterminate. Set to a decimal value between 0, or aria-valuemin if present, and aria-valuemax indicating the current value of the progress bar. | |
aria-valuemin |
Set to a decimal value representing the minimum value, and less than aria-valuemax. If not present, the default value is 0. | |
aria-valuemax |
Set to a decimal value representing the maximum value, and greater than aria-valuemin. If not present, the default value is 100. |
Resources
WAI-ARIA specification for progressbar
MDN reference for the progressbar role
Section 508
The ProgressBar 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 |