Toggle Group
A ToggleGroup may be set as an attribute in ToggleButton or RadioButton.
All Buttons that keep the same instance of a ToggleGroup belong to that ToggleGroup. Only one Button may be selected in a ToggleGroup. This means whenever a Button changes its selected state to true
, all other Buttons in the same ToggleGroup get deselected.
An exception to this rule is, whenever a new ToggleButton or RadioButton that is currently selected gets added to the ToggleGroup.