Accessibility in Blazor Query Builder component

26 Mar 20243 minutes to read

The Blazor Query Builder 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 Query Builder component is outlined below.

Accessibility Criteria Compatibility
WCAG 2.2 Support Yes
Section 508 Support Yes
Screen Reader Support Yes
Right-To-Left Support Yes
Color Contrast Yes
Mobile Device Support Yes
Keyboard Navigation Support Yes
Axe-core Accessibility Validation Yes
Yes - All features of the component meet the requirement.
Intermediate - Some features of the component do not meet the requirement.
No - The component does not meet the requirement.

WAI-ARIA attributes

WAI-ARIA (Accessibility Initiative – Accessible Rich Internet Applications) defines a way to increase the accessibility of web pages, dynamic content, and user interface components developed with Ajax, HTML, JavaScript, and related technologies. ARIA provides additional semantics to describe the role, state, and functionality of web components.

The following list of ARIA attributes is used in Blazor Query Builder.

Attributes Purpose
role Indicates the query builder component.

Keyboard interaction

The Blazor Query Builder 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 Query Builder component.

Press To do this
Tab / Shift + Tab To focus the next item in the rule.

Ensuring accessibility

The Blazor Query Builder component’s accessibility levels are ensured through an axe-core with playwright tests.

The accessibility compliance of the Blazor Query Builder component is shown in the following sample. Open the sample in a new window to evaluate the accessibility of the Blazor Query Builder component with accessibility tools.

See also