Accessibility in EJ2 TypeScript Listview component
24 Jan 20244 minutes to read
The ListView 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 ListView 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 | |
| Accessibility Checker Validation | |
| 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 ListView component followed the WAI-ARIA patterns to meet the accessibility. The following ARIA attributes are used in the ListView component:
| Attributes | Purpose |
|---|---|
role=list |
Specifies the non selectable list container. |
role=listitem |
Specifies the role of each item in a selectable ListView and its containment within the list. |
role=presentation |
Specifies the role of non selectable list element. |
role=checkbox |
Indicates checkbox control along with listitem element. |
aria-checked |
Indicates the current checked state of checkbox. |
aria-label |
Provides an accessible name for the ListView Checkbox. |
aria-disabled |
Indicates element is perceivable but disabled. |
Keyboard interaction
The ListView 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 ListView component.
| Keyboard shortcuts | Actions |
|---|---|
| Arrow Up | Move to the previous list item |
| Arrow Down | Move to the next list item |
| Space | Check and uncheck the targeted list from the whole list |
| BackSpace | Get back to the previous lists if it is nested list |
| Home | Moves focus to first list item |
| End | Moves focus to last list item |
Ensuring accessibility
The ListView component’s accessibility levels are ensured through an accessibility-checker and axe-core software tools during automated testing.
The accessibility compliance of the ListView component is shown in the following sample. Open the sample in a new window to evaluate the accessibility of the ListView component with accessibility tools.