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Blazor Gantt Accessibility

Out of the box, the Telerik UI for Blazor Gantt provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.

The Gantt is compliant with the Web Content Accessibility Guidelines (WCAG) 2.2 AA standards and Section 508 requirements, follows the Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA) best practices for implementing the keyboard navigation for its component role, provides options for managing its focus and is tested against the most popular screen readers.


This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any.

The Gantt component is a composite component that is used to represent project planning.

Selector Attribute Usage
.k-gantt role=application Indicates the Gantt's role as an application.

The Gantt component integrates the toolbar component and follows its wai-aria support.

ToolBar accessibility specification

The main inner component in the Gantt is the TreeList.

TreeList accessibility specification

Another part of the component is the Splitter component and Wai-Aria support.

Splitter accessibility specification

The following Wai-Aria support is implemented in the TimeLine of the Gantt.

Selector Attribute Usage
.k-gantt-timeline .k-grid-content role=tree Associates the role of the timeline as a tree.
.k-gantt-timeline .k-gantt-rows role=presentation Used to build the accessibility tree.
.k-gantt-timeline .k-gantt-columns role=presentation Used to build the accessibility tree.
.k-gantt-timeline .k-gantt-tasks role=presentation Used to build the accessibility tasks.
.k-gantt-timeline .k-task role=treeitem Associates the role of the timeline task as a tree item.
aria-level Specifies the level of the task.
aria-describedby=.k-tooltip id Gives more details for the task through its tooltip.
.k-gantt-timeline .k-task .k-task-complete aria-hidden=true Hides the status element from the task.
.k-gantt-timeline .k-task .k-task-actions aria-hidden=true Hides the actions element from the task.

Section 508

The Gantt is fully compliant with the Section 508 requirements.


The Gantt has been extensively tested automatically with axe-core and manually with the most popular screen readers.

To report any accessibility issues, contact the team through the Telerik Support System.

Screen Readers

The Gantt has been tested with the following screen readers and browsers combinations:

Environment Tool
Firefox NVDA
Chrome JAWS
Microsoft Edge JAWS

See Also

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