A radio group is an interface control that displays a fixed number of options that are mutually exclusive. Each option is represented by an individual radio button.
A radio group can include any number of radio buttons. Radio buttons can be sized, positioned, and formatted independently of one another.
End users select a different radio button by clicking with the mouse, or by navigating to the button. Selecting a radio button deselects the previously selected radio button in the same radio group. At runtime, only one radio button in a radio group can be selected at any time.