Accessibility in ASP.NET CORE Accordion Control
20 Jun 20224 minutes to read
The 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-hidden. It helps to provide 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.
It indicates that the element is used to control presentation. This attribute is added to the Accordion element describing the actual role of the element.
It identifies the element as a heading that serves as an Accordion header. This attribute is added to all the Accordion header elements describing the actual role of the element.
|aria-multiselectable||It indicates the expand mode in the Accordion. Default value of this attribute is true. If expand mode value is changed as ‘single’, the attribute value changes to
|aria-disabled||It indicates the disabled state of the Accordion and its items.|
|aria-expanded||It indicates the expand state of the Accordion Item. Default value of this attribute is
|aria-selected||It indicates the Selection state of the Accordion Item. Default value of this attribute is
|aria-hidden||It indicates the content visible state of the Accordion Item. Default value of this attribute is
|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-level||It defines the hierarchical level of an Accordion element with its inner level.|
Keyboard navigation is enabled by default. Possible keys are:
|Space or Enter||When focus is on the Accordion header, click 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.|