Accessibility in Blazor Sparkline Component
28 Mar 20243 minutes to read
The Blazor Sparkline 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 Sparkline 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 Sparkline component followed the WAI-ARIA patterns to meet the accessibility. The following ARIA attributes are used in the Blazor Sparkline component:
- img (role)
- region (role)
- aria-label (attribute)
- aria-hidden (attribute)
- aria-pressed (attribute)
Keyboard interaction
The Blazor Sparkline 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 Sparkline component.
| Interaction Keys | Description |
|---|---|
| Tab | Moves the focus to the next element in the Sparkline. |
| Shift + Tab | Moves the focus to the previous element in the Sparkline. |
| DownArrow | Moves the focus to the data point right side from the selected point. |
| UpArrow | Moves the focus to the data point right side from the selected point. |
| ESC | Cancel the tooltip for the data point. |
| Ctrl + P | Prints the Sparkline. |
Ensuring accessibility
The Blazor Sparkline component’s accessibility levels are ensured through an axe-core with playwright tests.
The accessibility compliance of the Blazor Sparkline component is shown in the following sample. Open the sample in a new window to evaluate the accessibility of the Blazor Sparkline component with accessibility tools.