CheckboxGruppe

CheckboxGruppe, or checkbox group, is a user interface control that presents a set of independent options to the user, allowing any combination of selections. This distinguishes it from mutually exclusive controls such as single-choice lists or radio groups, where only one option may be chosen at a time.

Typically each option is rendered as a checkbox with an associated label. The options can be arranged horizontally or vertically. In forms, the selected values are usually submitted as a collection corresponding to the checked checkboxes, and on the client side the state is commonly represented as an array or set of the chosen values.

Semantics and accessibility: The group should be announced as a unit to assistive technologies. When possible, use a fieldset element with a legend to label the group; with custom widgets, implement role='group' and provide an accessible name. Ensure that labels are correctly associated with inputs and that the keyboard focus order is logical.

Interactions and state: Users toggle each checkbox individually; there is typically no implicit mutual exclusion. Features such as 'select all', 'clear all', or bulk actions are common. Developers should ensure the component exposes the current selection, and serverside handling treats the selected values as a set.

Use cases: Checkbox groups are used for preferences, filters, and survey questions where multiple options may apply. They can be combined with hidden fields or dynamic rendering to reflect changes. In web development, the HTML pattern uses input type='checkbox' with the same name attribute for multiple values.