Converts the specified year to a four-digit year by using the TaiwanCalendar.TwoDigitYearMax property to determine the appropriate century.
An integer that contains the four-digit representation of year.
This method implements Calendar.ToFourDigitYear(int).
Because the year in the Taiwan calendar is typically less than four digits long, this implementation always returns the value of the year parameter.
TaiwanCalendar.ToFourDigitYear(int) supports either a two-digit year or a four-digit year. Passing a two-digit year value (less than 100) causes the method to convert the value to a four-digit value according to the TaiwanCalendar.TwoDigitYearMax value representing the appropriate century. If the application supplies a four-digit year value that is within the supported calendar range to TaiwanCalendar.ToFourDigitYear(int), the method returns the actual input value. If the application supplies a four-digit value that is outside the supported calendar range, or if it supplies a negative value, the method throws an exception.