Accessibility in Blazor Dropdown Menu Component
9 Mar 20221 minute to read
ARIA attributes
The web accessibility makes web content and web applications more accessible for people with disabilities. Mostly it helps in dynamic content change and development of advanced user interface controls with AJAX, HTML, JavaScript, and related technologies.
Dropdown Menu provides built-in compliance with WAI-ARIA
specifications. WAI-ARIA
support is achieved through the attributes like aria-expanded
, aria-owns
and aria-haspopup
applied for action item in
Dropdown Menu. It helps by providing information about the widget for assistive technology in the screen readers. Dropdown Menu component contains the Menu
role and MenuItem
role.
Properties | Functionality |
---|---|
menu | Specified for an Dropdown Menu element. |
menuItem | Specified for an action items. |
aria-haspopup | Indicates the availability and type of interactive dropdown popup element. |
aria-expanded | Indicates whether the current state of the dropdown popup can be expanded or collapsed. |
aria-owns | Identifies elements to define a visual, functional, or contextual parent or child relationship between DOM(Document Object Model) elements where the hierarchy cannot be used to represent the relationship. |
Keyboard interaction
Keyboard shortcuts | Actions |
Esc | Closes the popup. |
Enter | Opens the popup, or activates the highlighted item and closes the popup. |
Space | Opens the popup. |
Up | Navigates up or to the previous action item. |
Down | Navigates down or to the next action item. |
Alt + Up Arrow | Closes the popup. |
Alt + Down Arrow | Opens the popup |
@using Syncfusion.Blazor.SplitButtons
<SfDropDownButton Content="Edit">
<DropDownMenuItems>
<DropDownMenuItem Text="Cut"></DropDownMenuItem>
<DropDownMenuItem Text="Copy"></DropDownMenuItem>
<DropDownMenuItem Text="Paste"></DropDownMenuItem>
</DropDownMenuItems>
</SfDropDownButton>