DayHeaderFormat
Defines the available data header formats for the calendar.
Values
Abbreviated- Specifies that the abbreviated format of day name will be displayed in the header, for example Sun.Narrow- Specifies that the narrow format of day name will be displayed in the header, for example S.Short- Specifies that the short format of day name will be displayed in the header, for example Su.Wide- Specifies that the long format of day name will be displayed in the header, for example Sunday.