Accessibility in Blazor SplitButton Component
26 Mar 20244 minutes to read
The Blazor SplitButton 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 SplitButton component is outlined below.
| Accessibility Criteria | Compatibility |
|---|---|
| WCAG 2.2 Support |  |
| Section 508 Support | |
| Screen Reader Support | |
| Right-To-Left Support | Not Applicable |
| 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 SplitButton component followed the WAI-ARIA patterns to meet the accessibility. The following ARIA attributes are used in the Blazor SplitButton component:
| Attributes | Purpose |
|---|---|
role |
Indicates the SplitButton component as button, SplitButton popup as menu, and the SplitButton popup action items as menuitem. |
aria-haspopup |
Indicates the availability and type of interactive SplitButton popup element. |
aria-expanded |
Indicates whether the SplitButton popup can be expanded or collapsed, as well as indicates whether its current state is expanded or collapsed. |
aria-owns |
Identifies an elements in order to define a visual, functional, or contextual parent/child relationship between DOM elements where the DOM hierarchy cannot be used to represent the relationship. |
aria-disabled |
Indicates that the element is perceivable but disabled, so it is not editable or otherwise operable. |
Keyboard interaction
The Blazor SplitButton 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 SplitButton component.
| Press | To do this |
|---|---|
| Esc | Closes the opened popup. |
| Enter | Opens the popup, or activates the highlighted item and closes the popup. |
| Spacer | Opens the popup. |
| Up | Navigates up or to the previous action item. |
| Down | Navigates down or to the next action item. |
| Alt + Up Arrow | Closes the popup. |
| Alt + Down Arrow | Opens the popup. |
Ensuring accessibility
The Blazor SplitButton component’s accessibility levels are ensured through an axe-core with playwright tests.
The accessibility compliance of the Blazor SplitButton component is shown in the following sample. Open the sample in a new window to evaluate the accessibility of the Blazor SplitButton component with accessibility tools.