Description
The aria-required attribute is used to indicate that user input is required on an element before a form can be submitted. This attribute can be used with any typical HTML form element; it is not limited to elements that have an ARIA role assigned.
HTML5 now has the required attribute, but aria-required is still useful for user agents that do not yet support HTML5.
Value
true or false (Default: false)
Possible effects on user agents and assistive technology
Screen readers should announce the field as required.
Note that this attribute will not automatically change the presentation of the field.
Note: Opinons may differ on how assistive technology should handle this technique. The information provided above is one of those opinions and therefore not normative.
Examples
Example 1: A simple form
<form action="post">
<label for="firstName">First name:</label>
<input id="firstName" type="text" aria-required="true" />
<br/>
<label for="lastName">Last name:</label>
<input id="lastName" type="text" aria-required="true" />
<br/>
<label for="streetAddress">Street address:</label>
<input id="streetAddress" type="text" />
</form>
Working Examples:
Tooltip example (includes the use of the aria-required attribute)
Notes
Used in ARIA roles
- Combobox
- Gridcell
- Listbox
- Radiogroup
- Spinbutton
- Textbox
- Tree
Related ARIA techniques
Compatibility
TBD: Add support information for common UA and AT product combinations