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DropDownTree Accessibility

Out of the box, the Kendo Vue DropDownTree provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.

The DropDownTree 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.


The following table lists the selectors, attributes, and behavior patterns supported by the DropDownTree component:

DropDownTree wrapper

.k-dropdowntreerole=comboboxAnnounces the button dropdown element.
label for or aria-label or aria-labelledbyThe input needs an accessible name to be assigned to it.
aria-haspopup=treeIndicates the presence of a popup with tree navigation.
aria-expanded=true/falseAnnounces the state of the visibility of the popup.
aria-controls=.k-treeview idPoints to the treeview element. Signifies that the combobox element controls the treeview.
aria-describedby=.k-input-inner idAnnounces the selected value of the dropdown.
aria-readonly=trueAttribute is rendered only when the dropdown is readonly.
aria-autocomplete=listAttribute is rendered and value is set to list when filtering feature is enabled.
aria-invalid=trueAttribute is rendered only when the dropdown is in form and announces the valid state of the component.
aria-busy=trueAttribute is rendered only when the dropdown is loading data.
tabindex=0The element should be focusable.
.k-dropdowntree.k-disabledaria-disabled=trueAttribute is rendered only when the dropdown is disabled.
.k-input-buttonrole=button or nodeName=buttonThe element should either be a <button> element or should have role="button" assigned.
aria-labelThe button needs an accessible name to be assigned to it.
tabindex=-1Button element should not be focusable.


ARIA practices: Select-Only Combobox Example


.k-animation-containerrole=regionWhen the component container is appended to the <body> element of the document, it needs a landmark role to be assigned to it. Otherwise, it should be appended to an element with an appropriate landmark role.
aria-label or aria-labelledbyProvides a label when the container has a region role assigned.


The Tree placed in the Popup element of the component should implement the specification for a TreeView component.

TreeView accessibility specification


ARIA practices: TreeView Example

Section 508

The DropDownTree is fully compliant with the Section 508 requirements.


The DropDownTree has been extensively tested automatically with static code analyzers and manually with the most popular screen readers.

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

Screen Readers

The following table lists the screen readers supported by the DropDownTree:

Microsoft EdgeJAWS

See Also