The value associated with the currently selected button in the group. Give each radio button in the group a different value using Efl.Ui.Radio.state_value.
A value of -1 means that no button is selected. Only values associated with the buttons in the group (and -1) can be used.
Since 1.23
@property selected_value @pure_virtual { get {} set {} values { selected_value: int; } }
int efl_ui_radio_group_selected_value_get(const Eo *obj); void efl_ui_radio_group_selected_value_set(Eo *obj, int selected_value);