C# in a Nutshell, Second Edition

Name

Calendar

Synopsis

This abstract class determines the division and measurement of time in units, such as day, months, years, and eras. It is an abstract base class for culture-specific calendar implementations included in this namespace. Derived classes store the specific information about a calendar’s eras, lengths of years and months, and the sometimes esoteric rules for calculating leap years. These properties get used by DateTimeFormatInfo to properly display a date and time string from a specific DateTime value.

public abstract class Calendar {
// Protected Constructors
   protected Calendar( );
// Public Static Fields
   public const int CurrentEra;          
// =0
                  // Public Instance Properties
   public abstract int[ ] Eras{get; }
   public virtual int TwoDigitYearMax{set; get; }
// Public Instance Methods
   public virtual DateTime AddDays(DateTime time, int days);
   public virtual DateTime AddHours(DateTime time, int hours);
   public virtual DateTime AddMilliseconds(DateTime time, double milliseconds);
   public virtual DateTime AddMinutes(DateTime time, int minutes);
   public abstract DateTime AddMonths(DateTime time, int months);
   public virtual DateTime AddSeconds(DateTime time, int seconds);
   public virtual DateTime AddWeeks(DateTime time, int weeks);
   public abstract DateTime AddYears(DateTime time, int years);
   public abstract int GetDayOfMonth(DateTime time);
   public abstract DayOfWeek GetDayOfWeek(DateTime time);
   public abstract int GetDayOfYear(DateTime time);
   public virtual int GetDaysInMonth(int ...