public int NumberOfKnownHolidays(
	int year,
	CultureInfo? cultureInfo = null
)Dim instance As DefaultHolidayProvider
Dim year As Integer
Dim cultureInfo As CultureInfo
Dim returnValue As Integer
returnValue = instance.NumberOfKnownHolidays(year, 
	cultureInfo)public:
virtual int NumberOfKnownHolidays(
	int year, 
	CultureInfo^ cultureInfo = nullptr
) sealedNo code example is currently available or this language may not be supported.