CalendarSelectionChangedCallback typedef Null safety
Signature for callback that reports that a calendar view selection changed on view.
The selection changed date and resource details when the selection changed action performed on element available in the CalendarSelectionDetails.
- SfCalendar.onSelectionChanged, which matches this signature.
- SfCalendar, which uses this signature in one of it's callback.
typedef CalendarSelectionChangedCallback = void Function( CalendarSelectionDetails calendarSelectionDetails);