Blazor Filter Accessibility
The Telerik UI for Blazor Filter component is WCAG 2.1 AA and Section 508 compliant. The component also follows the WAI-ARIA best practices for implementing the keyboard navigation for its component role, and is tested against the popular screen readers.
Wai-Aria
The Filter component represents visually the structure of a filter object. As the filter object can contain nested objects, that hierarchical structure must be represented in the accessibility tree by the role=tree assigned to the component.
| Selector | Attribute | Usage |
|---|---|---|
| .k-filter-container | role=tree |
Describes the hierarchical structure of the Filter component. |
aria-label |
Specifies a label for the Filter component. | |
| .k-filter-group-main,.k-filter-item | role=treeitem |
Each FilterGroup and FilterExpression represent a separate treeitem in the Filter component structure. |
| .k-filter-lines | role=group |
Represents a group if items in the Filter component. |
| .k-toolbar | role=toolbar |
The role represents a collection of tools. |
aria-label |
Specifies a label for the toolbar. |
Each toolbar in the Filter should follow the specification for a ToolBar component. The elements inside the FilterGroup follow the ARIA specification applicable to their specific roles.
Resources
WAI-ARIA specification for toolbar
Section 508
The Filter is compliant with the Section 508 requirements
Testing
The component has been extensively tested automatically with static code analyzers and manually with the most popular screen readers.
Any Accessibility Issues could be reported in Telerik Support System.
Screen Readers
| Environment | Tool |
|---|---|
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |