Checkbox

A tri-state checkbox following the WAI-ARIA checkbox pattern. Emits aria-checked="mixed" for the indeterminate state, which cannot be represented declaratively by a native <input type="checkbox">. APG-strict keyboard: only Space toggles, Enter is suppressed.

Default

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Controlled tri-state

State: false

Parent + child group

Select all

Item A

Item B

Item C

Disabled

Disabled (unchecked)

Disabled (checked)