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

## Definición

Determina si la fecha especificada es un día bisiesto.Determines whether the specified date is a leap day.

``````public:
override bool IsLeapDay(int year, int month, int day, int era);``````
``public override bool IsLeapDay (int year, int month, int day, int era);``
``override this.IsLeapDay : int * int * int * int -> bool``
``Public Overrides Function IsLeapDay (year As Integer, month As Integer, day As Integer, era As Integer) As Boolean``

#### Parámetros

year
Int32 Int32 Int32 Int32

Entero del 1 al 9378 que representa el año.An integer from 1 through 9378 that represents the year.

month
Int32 Int32 Int32 Int32

Entero que representa el mes, comprendido entre 1 y 12 si el valor de `year` no es 9378, o entre 1 y 10 si el valor de `year` es 9378.An integer that represents the month and ranges from 1 through 12 if `year` is not 9378, or 1 through 10 if `year` is 9378.

day
Int32 Int32 Int32 Int32

Entero del 1 al 31 que representa el día.An integer from 1 through 31 that represents the day.

era
Int32 Int32 Int32 Int32

Entero del 0 al 1 que representa la era.An integer from 0 through 1 that represents the era.

#### Devoluciones

Es `true` si el día especificado es un día bisiesto; en caso contrario, es `false`.`true` if the specified day is a leap day; otherwise, `false`.

#### Excepciones

`year`, `month`, `day` o `era` están fuera del intervalo admitido por este calendario.`year`, `month`, `day`, or `era` is outside the range supported by this calendar.

## Ejemplos

En el ejemplo de código siguiente se muestra el uso de la IsLeapDay método.The following code example demonstrates the use of the IsLeapDay method.

``````using System;
using System.Globalization;

class Sample
{
public static void Main()
{
PersianCalendar jc = new PersianCalendar();
DateTime thisDate = DateTime.Now;

//--------------------------------------------------------------------------------
// Properties
//--------------------------------------------------------------------------------
Console.WriteLine("\n........... Selected Properties .....................\n");
Console.Write("Eras:");
foreach (int era in jc.Eras)
{
Console.WriteLine(" era = {0}", era);
}
//--------------------------------------------------------------------------------
Console.WriteLine("\nTwoDigitYearMax = {0}", jc.TwoDigitYearMax);
//--------------------------------------------------------------------------------
// Methods
//--------------------------------------------------------------------------------
Console.WriteLine("\n............ Selected Methods .......................\n");

//--------------------------------------------------------------------------------
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("GetLeapMonth: leap month (if any) = {0}",
jc.GetLeapMonth(thisDate.Year, PersianCalendar.PersianEra));
//-------------------------------------------------------------
Console.WriteLine("GetMonthsInYear: months in a year = {0}",
jc.GetMonthsInYear(thisDate.Year, PersianCalendar.PersianEra));
//--------------------------------------------------------------------------------
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));
//--------------------------------------------------------------------------------

// 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));
}
}
// The example displays the following output:
//       ........... Selected Properties .....................
//
//       Eras: era = 1
//
//       TwoDigitYearMax = 99
//
//       ............ Selected Methods .......................
//
//       GetDayOfYear: day = 1
//       GetDaysInMonth: days = 31
//       GetDaysInYear: days = 365
//       GetLeapMonth: leap month (if any) = 0
//       GetMonthsInYear: months in a year = 12
//       IsLeapDay: This is a leap day = False
//       IsLeapMonth: This is a leap month = False
//       IsLeapYear: 1370 is a leap year = True
//       ToFourDigitYear:
//         If TwoDigitYearMax = 99, ToFourDigitYear(99) = 99
//         If TwoDigitYearMax = 2012, ToFourDigitYear(99) = 1999
``````
``````Imports System.Globalization

Class Sample
Public Shared Sub Main()
'--------------------------------------------------------------------------------
' Get today's date.
'--------------------------------------------------------------------------------
Dim jc As New PersianCalendar()
Dim thisDate As Date = Date.Now

'--------------------------------------------------------------------------------
' Properties
'--------------------------------------------------------------------------------
Console.WriteLine(vbCrLf & _
"........... Selected Properties ....................." & vbCrLf)
Console.Write("Eras:")
Dim era As Integer
For Each era In jc.Eras
Console.WriteLine(" era = {0}", era)
Next era
'--------------------------------------------------------------------------------
Console.WriteLine("TwoDigitYearMax = {0}", jc.TwoDigitYearMax)
'--------------------------------------------------------------------------------
' Methods
'--------------------------------------------------------------------------------
Console.WriteLine(vbCrLf & _
"............ Selected Methods ......................." & vbCrLf)

'--------------------------------------------------------------------------------
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("GetLeapMonth: leap month (if any) = {0}", _
jc.GetLeapMonth(thisDate.Year, PersianCalendar.PersianEra))
'--------------------------------------------------------------------------------
Console.WriteLine("GetMonthsInYear: months in a year = {0}", _
jc.GetMonthsInYear(thisDate.Year, PersianCalendar.PersianEra))
'--------------------------------------------------------------------------------
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))
'--------------------------------------------------------------------------------

' 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))
End Sub
End Class
' The example displays output like the following:
'       ........... Seleted Properties .....................
'
'       Eras: era = 1
'
'       TwoDigitYearMax = 99
'
'       ............ Selected Methods .......................
'
'       GetDayOfYear: day = 1
'       GetDaysInMonth: days = 31
'       GetDaysInYear: days = 365
'       GetLeapMonth: leap month (if any) = 0
'       GetMonthsInYear: months in a year = 12
'       IsLeapDay: This is a leap day = False
'       IsLeapMonth: This is a leap month = False
'       IsLeapYear: 1370 is a leap year = True
'       ToFourDigitYear:
'         If TwoDigitYearMax = 99, ToFourDigitYear(99) = 99
'         If TwoDigitYearMax = 2012, ToFourDigitYear(99) = 1999
``````

## Comentarios

Un día bisiesto es un día que se produce solo en un año bisiesto.A leap day is a day that occurs only in a leap year.