PersianCalendar.IsLeapDay Method (Int32, Int32, Int32, Int32)

public override bool IsLeapDay (
	int year,
	int month,
	int day,
	int era
)

public boolean IsLeapDay (
	int year, 
	int month, 
	int day, 
	int era
)

public override function IsLeapDay (
	year : int, 
	month : int, 
	day : int, 
	era : int
) : boolean

// This example demonstrates the members of the PersianCalendar class.

using System;
using System.Globalization;

class Sample 
{
    public static void Main() 
    {
//--------------------------------------------------------------------------------
// Get today's date.
//--------------------------------------------------------------------------------
    Console.WriteLine("\n................. Today ...........................\n");
    PersianCalendar jc = new PersianCalendar();
    DateTime thisDate = DateTime.Now;

// Use thisDate twice to display the name of the day and the current date.
    Console.WriteLine("Today is {0:dddd}, {0}", thisDate);
//--------------------------------------------------------------------------------
// Fields
//--------------------------------------------------------------------------------
    Console.WriteLine("\n............... Fields .............................\n");
    Console.WriteLine("PersianEra = {0}", PersianCalendar.PersianEra);
//--------------------------------------------------------------------------------
// Properties
//--------------------------------------------------------------------------------
    Console.WriteLine("\n............... Properties .........................\n");
    Console.Write("Eras:");
    foreach (int era in jc.Eras)
        {
        Console.WriteLine(" era = {0}", era);
        }
//--------------------------------------------------------------------------------
    Console.WriteLine("MaxSupportedDateTime = {0:G}", jc.MaxSupportedDateTime);
//--------------------------------------------------------------------------------
    Console.WriteLine("MinSupportedDateTime = {0:G}", jc.MinSupportedDateTime);
//--------------------------------------------------------------------------------
    Console.WriteLine("TwoDigitYearMax = {0}", jc.TwoDigitYearMax);
//--------------------------------------------------------------------------------
// Methods
//--------------------------------------------------------------------------------
    Console.WriteLine("\n................ Methods ...........................\n");

// Create a date six months in the future and another date six months in the past.

    Console.WriteLine("AddMonths: thisDate + 6 months = {0}\n" + 
                      "           thisDate - 6 months = {1}",
                       jc.AddMonths(thisDate, 6), jc.AddMonths(thisDate, -6));
//--------------------------------------------------------------------------------

// Create a date five years in the future and another date three years in the past.

    Console.WriteLine("AddYears:  thisDate + 5 years =  {0}\n" + 
                      "           thisDate - 3 years =  {1}",
                       jc.AddYears(thisDate, 5), jc.AddYears(thisDate, -3));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetDayOfMonth: month = {0}", jc.GetDayOfMonth(thisDate));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetDayOfWeek: day = {0}", jc.GetDayOfWeek(thisDate));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetDayOfYear: day = {0}", jc.GetDayOfYear(thisDate));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetDaysInMonth: days = {0}", 
                      jc.GetDaysInMonth( thisDate.Year, thisDate.Month, 
                      PersianCalendar.PersianEra));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetDaysInYear: days = {0}", 
                       jc.GetDaysInYear(thisDate.Year, PersianCalendar.PersianEra));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetEra: era = {0}", jc.GetEra(thisDate));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetLeapMonth: leap month (if any) = {0}", 
                       jc.GetLeapMonth(thisDate.Year, PersianCalendar.PersianEra));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetMonth: month = {0}", jc.GetMonth(thisDate));
//-------------------------------------------------------------
    Console.WriteLine("GetMonthsInYear: months in a year = {0}", 
                       jc.GetMonthsInYear(thisDate.Year, PersianCalendar.PersianEra));
//--------------------------------------------------------------------------------
    Console.WriteLine("GetYear: year = {0}", jc.GetYear(thisDate));
//--------------------------------------------------------------------------------
    Console.WriteLine("IsLeapDay: This is a leap day = {0}", 
                       jc.IsLeapDay(thisDate.Year, thisDate.Month, thisDate.Day, 
                       PersianCalendar.PersianEra));
//--------------------------------------------------------------------------------
    Console.WriteLine("IsLeapMonth: This is a leap month = {0}", 
                       jc.IsLeapMonth(thisDate.Year, thisDate.Month, 
                       PersianCalendar.PersianEra));
//--------------------------------------------------------------------------------
    Console.WriteLine("IsLeapYear: 1370 is a leap year = {0}", 
                       jc.IsLeapYear(1370, PersianCalendar.PersianEra));
//--------------------------------------------------------------------------------
    DateTime dt1 = new DateTime(thisDate.Year, thisDate.Month, thisDate.Day, 20, 30, 15, 500);
    DateTime dt2 = jc.ToDateTime(thisDate.Year, thisDate.Month, thisDate.Day, 20, 30, 15, 500, 
                                 PersianCalendar.PersianEra);
    Console.WriteLine("ToDateTime:");
    Console.WriteLine("  Gregorian calendar: {0}\n" +
                      "  Persian calendar:   {1}", dt1, dt2);
//--------------------------------------------------------------------------------

// Get the 4-digit year for a year whose last two digits are 99. The 4-digit year 
// depends on the current value of the TwoDigitYearMax property.

    Console.WriteLine("ToFourDigitYear:");
    Console.WriteLine("  If TwoDigitYearMax = {0}, ToFourDigitYear(99) = {1}", 
                       jc.TwoDigitYearMax, jc.ToFourDigitYear(99));
    jc.TwoDigitYearMax = thisDate.Year;
    Console.WriteLine("  If TwoDigitYearMax = {0}, ToFourDigitYear(99) = {1}", 
                       jc.TwoDigitYearMax, jc.ToFourDigitYear(99));
    }
}
/*
This code example produces the following results:

................. Today ...........................

Today is Friday, 8/20/2004 1:08:37 PM

............... Fields .............................

PersianEra = 1

............... Properties .........................

Eras: era = 1
MaxSupportedDateTime = 12/31/9999 11:59:59 PM
MinSupportedDateTime = 3/21/0622 12:00:00 AM
TwoDigitYearMax = 1410

................ Methods ...........................

AddMonths: thisDate + 6 months = 2/18/2005 1:08:37 PM
           thisDate - 6 months = 2/19/2004 1:08:37 PM
AddYears:  thisDate + 5 years =  8/21/2009 1:08:37 PM
           thisDate - 3 years =  8/21/2001 1:08:37 PM
GetDayOfMonth: month = 30
GetDayOfWeek: day = Friday
GetDayOfYear: day = 154
GetDaysInMonth: days = 30
GetDaysInYear: days = 365
GetEra: era = 1
GetLeapMonth: leap month (if any) = 0
GetMonth: month = 5
GetMonthsInYear: months in a year = 12
GetYear: year = 1383
IsLeapDay: This is a leap day = False
IsLeapMonth: This is a leap month = False
IsLeapYear: 1370 is a leap year = True
ToDateTime:
  Gregorian calendar: 8/20/2004 8:30:15 PM
  Persian calendar:   11/11/2625 8:30:15 PM
ToFourDigitYear:
  If TwoDigitYearMax = 1410, ToFourDigitYear(99) = 1399
  If TwoDigitYearMax = 2004, ToFourDigitYear(99) = 1999

*/