Accessibility in Blazor Bullet Chart Component
28 Mar 20243 minutes to read
The Blazor Bullet chart component followed the accessibility guidelines and standards, including ADA, Section 508, WCAG 2.2 standards, and WCAG roles that are commonly used to evaluate accessibility.
The accessibility compliance for the Blazor Bullet Chart component is outlined below.
| Accessibility Criteria | Compatibility |
|---|---|
| WCAG 2.2 Support |  |
| Section 508 Support | |
| Screen Reader Support | |
| Right-To-Left Support | |
| Color Contrast | |
| Mobile Device Support | |
| Keyboard Navigation Support | |
| Axe-core Accessibility Validation | |
- All features of the component meet the requirement.
- Some features of the component do not meet the requirement.
- The component does not meet the requirement.WAI-ARIA attributes
The Blazor Bullet Chart component followed the WAI-ARIA patterns to meet the accessibility. The following ARIA attributes are used in the Blazor Bullet Chart component:
- img (role)
- button (role)
- region (role)
- aria-label (attribute)
- aria-pressed (attribute)
Keyboard interaction
The Blazor Bullet Chart component followed the keyboard interaction guideline, making it easy for people who use assistive technologies (AT) and those who completely rely on keyboard navigation. The following keyboard shortcuts are supported by the Blazor Bullet Chart component.
| Interaction Keys | Description |
|---|---|
| Alt + J | Moves the focus to the Bullet Chart element. |
| Tab | Moves the focus to the next element in the Bullet Chart. |
| Shift + Tab | Moves the focus to the previous element in the Bullet Chart. |
| UpArrow/Right Arrow | Moves the focus to the legend right side from the selected legend. |
| DownArrow/Left Arrow | Moves the focus to the legend left side from the selected legend. |
| Ctrl + P | Prints the Bullet Chart. |
Ensuring accessibility
The Blazor Bullet Chart component’s accessibility levels are ensured through an accessibility-checker and axe-core software tools during automated testing.
The accessibility compliance of the Blazor Bullet Chart component is shown in the following sample. Open the sample in a new window to evaluate the accessibility of the Blazor Bullet Chart component with accessibility tools.