PersianCalendar.TwoDigitYearMax Propriedade
Definição
Obtém ou define o último ano de um intervalo de 100 anos que pode ser representado por um ano de dois dígitos.Gets or sets the last year of a 100-year range that can be represented by a 2-digit year.
public:
virtual property int TwoDigitYearMax { int get(); void set(int value); };
public override int TwoDigitYearMax { get; set; }
member this.TwoDigitYearMax : int with get, set
Public Overrides Property TwoDigitYearMax As Integer
Valor da propriedade
O último ano de um intervalo de 100 anos que pode ser representado por um ano de dois dígitos.The last year of a 100-year range that can be represented by a 2-digit year.
Exceções
Esse calendário é somente leitura.This calendar is read-only.
O valor em uma operação de conjuntos é menor que 100 ou maior que 9378.The value in a set operation is less than 100 or greater than 9378.
Exemplos
O exemplo de código a seguir demonstra o uso da TwoDigitYearMax propriedade.The following code example demonstrates the use of the TwoDigitYearMax property.
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
Comentários
Essa propriedade permite que um ano de 2 dígitos seja convertido corretamente em um ano de 4 dígitos.This property allows a 2-digit year to be properly translated to a 4-digit year. Por exemplo, se essa propriedade for definida como 2029, o intervalo de 100 anos será de 1930 a 2029.For example, if this property is set to 2029, the 100-year range is from 1930 to 2029. Portanto, um valor de 2 dígitos de 30 é interpretado como 1930, enquanto um valor de 2 dígitos de 29 é interpretado como 2029.Therefore, a 2-digit value of 30 is interpreted as 1930, while a 2-digit value of 29 is interpreted as 2029.
O valor inicial dessa propriedade é derivado das configurações nas opções regionais e de idioma no painel de controle.The initial value of this property is derived from the settings in the regional and language options in Control Panel. No entanto, essas informações podem ser alteradas durante a vida útil do AppDomain .However, that information can change during the life of the AppDomain. A PersianCalendar classe não detecta alterações nas configurações do sistema automaticamente.The PersianCalendar class does not detect changes in the system settings automatically. Se não houver suporte para o calendário nas opções regionais e de idioma, o valor inicial dessa propriedade será o valor padrão definido pela classe Calendar.If the calendar is not supported in the regional and language options, the initial value of this property is the default value defined by the calendar class.
O aplicativo deve definir esse valor como 99 para indicar que anos de 2 dígitos devem ser usados literalmente.The application should set this value to 99 to indicate that 2-digit years are to be taken literally. Por exemplo, se essa propriedade for definida como 99, o intervalo de 100 anos será de 0 (não é um valor válido para a maioria dos calendários) a 99.For example, if this property is set to 99, the 100-year range is from 0 (not a valid value for most calendars) to 99. Portanto, um valor de 2 dígitos de 30 é interpretado como 30.Therefore, a 2-digit value of 30 is interpreted as 30.