Selection

Choose a control

Control	API	Use
Checkbox	Widget::Checkbox	Choose an on/off value.
Mixed checkbox	Widget::MixedCheckbox	Show checked, unchecked or mixed state.
Switch	Widget::Toggle	Toggle an on/off setting.
Selectable row	Widget::Selectable	Select an individual row.
Radio group	Element::selection_group(..., SelectionGroup::Radio, ...)	Choose one item.
Segmented group	SelectionGroup::Segmented	Choose one segment.
Chip group	SelectionGroup::Chips	Choose from chips.

Create a checkbox

use knave_ui::toolkit::*;

let option = Element::new(10, Widget::Checkbox {
    label: "Enable".into(),
    checked: false,
});

Handle Action::CheckChanged for checkbox changes. Toggle and group controls report their corresponding actions; the application owns persistent state.

Keyboard and styling

Selection groups use one Tab stop. Arrow keys and Home/End navigate available choices. Applicable CSS states include :checked, :indeterminate, and :selected; see states.