headerHeight property

The height for header view to layout within this in calendar.

Defaults to 40.

See also:

• headerStyle to know about the available customization options for header view.
• headerDateFormat, to format the date string in the header view of calendar.
• Knowledge base: How to style a header
• Knowledge base: How to add custom header and view header

Widget build(BuildContext context) {
   return Container(
     child: SfCalendar(
       view: CalendarView.week,
       headerHeight: 100,
     ),
   );
 }