Accessibility in Blazor Accordion Component
23 Jan 20232 minutes to read
The Blazor Accordion component has been designed keeping in mind the WAI-ARIA specifications, by applying the prompt WAI-ARIA roles, states and properties along with the keyboard support. Thus, making it usable for people who use assistive WAI-ARIA Accessibility supports that is achieved through the attributes like
aria-labelledby, It helps to provides information about the elements in a document for assistive technology. The component implements the keyboard navigation support by following the WAI-ARIA practices and tested in major screen readers.
Button: Attribute is set to the Accordion header elements to indicate that the element can be used to toggle the visibility of the associated content section, describing the actual role of the element.
Region: Attribute is set to the Accordion panel elements to create a landmark region that contains the currently expanded accordion panel, describing the actual role of the element.
|aria-labelledby||Attribute is set to content (panel) and it points to the corresponding Accordion header.|
|aria-controls||Attribute is set to the header and it points to the corresponding Accordion content.|
|aria-expanded||Attribute is set to the Accordion header elements to indicates the expand state of the Accordion Item. Default value of this attribute is
|aria-hidden||Attribute is set to the Accordion panel elements to indicates the content visible state of the Accordion Item. Default value of this attribute is
|aria-disabled||It indicates the disabled state of the Accordion and its items.|
Keyboard navigation is enabled by default. The possible keys are:
|Space or Enter||When the focus is on the Accordion header, clicking on the focused element makes the element to expand and collapse.|
|Down Arrow||Focus the next Accordion header.|
|Up Arrow||Focus the previous Accordion header.|
|Home||Focus the first Accordion header.|
|End||Focus the last Accordion header.|