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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.


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.


WAI-ARIA specification for toolbar

Section 508

The Filter is compliant with the Section 508 requirements


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

See Also

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