Accessibility in Blazor SplitButton Component

14 Oct 20221 minute to read

ARIA attributes

The web accessibility makes web content and web applications more accessible for people with disabilities. It especially helps in dynamic content change and development of advanced user interface controls with AJAX, HTML, JavaScript, and related technologies.

Split Button 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 Split Button. It helps the people with disabilities by providing information about the widget for assistive technology in the screen readers. Split Button component contains the MenuItem role.

Properties Functionality
menuItem This role will be specified for an action items.
aria-haspopup Indicates the availability and type of interactive SplitButton popup element.
aria-expanded Indicates whether the SplitButton popup can be expanded or collapsed, as well as indicates whether its current state is expanded or collapsed.
aria-owns Identifies an elements in order to define a visual, functional, or contextual parent/child relationship between DOM elements where the DOM hierarchy cannot be used to represent the relationship.

Keyboard interaction

Keyboard shortcuts Actions
Esc Closes the opened 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 Opens the popup.
Alt + Down Arrow Closes the popup.
@using Syncfusion.Blazor.SplitButtons

<SfSplitButton Content="Paste">
        <DropDownMenuItem Text="Cut" ></DropDownMenuItem>
        <DropDownMenuItem Text="Copy" ></DropDownMenuItem>
        <DropDownMenuItem Text="Paste"></DropDownMenuItem>

Accessibility in Blazor SplitButton