PersianCalendar.TwoDigitYearMax PersianCalendar.TwoDigitYearMax PersianCalendar.TwoDigitYearMax PersianCalendar.TwoDigitYearMax Property

定義

年の 2 桁表記で表すことができる 100 年間の範囲内で最後に当たる年を取得または設定します。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

プロパティ値

年の 2 桁表記で表すことができる 100 年間の範囲内で最後に当たる年。The last year of a 100-year range that can be represented by a 2-digit year.

例外

このカレンダーは読み取り専用です。This calendar is read-only.

設定操作の値が 100 より小さいか、9378 を超えています。The value in a set operation is less than 100 or greater than 9378.

次のコード例は、の使用を示します、TwoDigitYearMaxプロパティ。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

注釈

このプロパティは、2 桁の年を 4 桁の年に適切に変換できます。This property allows a 2-digit year to be properly translated to a 4-digit year. たとえば、このプロパティが 2029年に設定されている場合、100 年範囲はように、1930年から 2029 です。For example, if this property is set to 2029, the 100-year range is from 1930 to 2029. そのため、30 の 2 桁の値は、2029年として解釈されます 2 桁の値は 29、ように、1930、として解釈されます。Therefore, a 2-digit value of 30 is interpreted as 1930, while a 2-digit value of 29 is interpreted as 2029.

このプロパティの初期値は、コントロール パネルの 地域と言語のオプションの設定から派生します。The initial value of this property is derived from the settings in the regional and language options in Control Panel. ただし、その情報を変更の有効期間中に、AppDomainします。However, that information can change during the life of the AppDomain. PersianCalendarクラス システム設定の変更を検出が自動的にします。The PersianCalendar class does not detect changes in the system settings automatically. 予定表が地域と言語のオプションでサポートされていない場合、このプロパティの初期値は、calendar クラスによって定義された既定値です。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.

アプリケーションは、この値を 2 桁の年をそのまま使用することを示す 99 に設定する必要があります。The application should set this value to 99 to indicate that 2-digit years are to be taken literally. たとえば、このプロパティが 99 に設定されている場合、100 年の範囲は 0 (ほとんどのカレンダーの有効な値されません) 99 です。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. そのため、30 の 2 桁の値は 30 として解釈されます。Therefore, a 2-digit value of 30 is interpreted as 30.

適用対象

こちらもご覧ください