PersianCalendar.GetEra メソッド

.NET Framework クラス ライブラリ リファレンス

PersianCalendar.GetEra メソッド

メモ : このメソッドは、.NET Framework version 2.0 で新しく追加されたものです。

指定した DateTime オブジェクトの時代 (年号) を返します。

名前空間: System.Globalization
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Overrides Function
 GetEra ( _
    time As DateTime _
) As Integer

Visual Basic (使用法)

Dim instance As PersianCalendar
Dim time As DateTime
Dim returnValue As Integer

returnValue = instance.GetEra(time)

C#

public override int GetEra (
    DateTime time
)

C++

public:
virtual int GetEra (
    DateTime time
) override

J#

public int GetEra (
    DateTime time
)

JScript

public override function GetEra (
    time : DateTime
) : int

パラメータ

time

読み込む DateTime オブジェクト。

戻り値
常に PersianEra を返します。

例外

例外の種類	条件
ArgumentOutOfRangeException	time パラメータが MinSupportedDateTime 未満の日付か、MaxSupportedDateTime より大きい日付を表しています。

使用例

PersianCalendar クラスのメンバであるフィールド、プロパティ、およびメソッドを使用するコード例を次に示します。

Visual Basic

' This example demonstrates the members of the PersianCalendar class.
Imports System
Imports System.Globalization

Class Sample
    Public Shared Sub Main()
 
        '--------------------------------------------------------------------------------
        ' Get today's date.
        '--------------------------------------------------------------------------------
        Console.WriteLine(vbCrLf & _
                          "................. Today ..........................."
 & vbCrLf)
        Dim jc As New PersianCalendar()
        Dim thisDate As DateTime = 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(vbCrLf & _
                          "............... Fields ............................"
 & vbCrLf)
        Console.WriteLine("PersianEra = {0}", PersianCalendar.PersianEra)
        '--------------------------------------------------------------------------------
        ' Properties
        '--------------------------------------------------------------------------------
        Console.WriteLine(vbCrLf & _
                          "............... Properties ........................."
 & vbCrLf)
        Console.Write("Eras:")
        Dim era As Integer
        For Each era In
 jc.Eras
            Console.WriteLine(" era = {0}", era)
        Next era
        '--------------------------------------------------------------------------------
        Console.WriteLine("MaxSupportedDateTime = {0:G}",
 jc.MaxSupportedDateTime)
        '--------------------------------------------------------------------------------
        Console.WriteLine("MinSupportedDateTime = {0:G}",
 jc.MinSupportedDateTime)
        '--------------------------------------------------------------------------------
        Console.WriteLine("TwoDigitYearMax = {0}",
 jc.TwoDigitYearMax)
        '--------------------------------------------------------------------------------
        ' Methods
        '--------------------------------------------------------------------------------
        Console.WriteLine(vbCrLf & _
                          "................ Methods ..........................."
 & vbCrLf)

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

        Dim plus6Months As DateTime = jc.AddMonths(thisDate,
 6)
        Dim minus6Months As DateTime = jc.AddMonths(thisDate,
 -6)
        Console.WriteLine("AddMonths: thisDate + 6 months = {0}",
 plus6Months)
        Console.WriteLine("           thisDate - 6 months = {0}",
 minus6Months)
        '--------------------------------------------------------------------------------

        ' Create a date five years in the future and another date three
 years in the past.
 
        Dim plus5Years As DateTime = jc.AddYears(thisDate,
 5)
        Dim minus3Years As DateTime = jc.AddYears(thisDate,
 -3)
        Console.WriteLine("AddYears:  thisDate + 5 years = {0}",
 plus5Years)
        Console.WriteLine("           thisDate - 3 years = {0}",
 minus3Years)
        '--------------------------------------------------------------------------------
        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))
        '--------------------------------------------------------------------------------

        ' Create a date in the Gregorian calendar and the Persian calendar.
 The date is
        ' the current date and an arbitrary time of 20 hours, 30 minutes,
 and 15.5 
        ' seconds.

        Dim dt1 As New DateTime(thisDate.Year,
 thisDate.Month, thisDate.Day, _
                                20, 30, 15, 500)
        Dim dt2 As DateTime = jc.ToDateTime(thisDate.Year,
 thisDate.Month, _
                              thisDate.Day, _
                              20, 30, 15, 500, _
                              PersianCalendar.PersianEra)
        Console.WriteLine("ToDateTime:")
        Console.WriteLine("  Gregorian calendar: {0}",
 dt1)
        Console.WriteLine("  Persian calendar:   {0}",
 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))
    End Sub 'Main
End Class 'Sample
'
'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
'

C#

// 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

*/

プラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0

参照

関連項目
PersianCalendar クラス
PersianCalendar メンバ
System.Globalization 名前空間
System.DateTime
CurrentEra
PersianEra
Eras
GetYear
GetMonth
GetDayOfYear
GetDayOfMonth
GetDayOfWeek
Calendar.GetWeekOfYear
Calendar.GetHour
Calendar.GetMinute
Calendar.GetSecond
Calendar.GetMilliseconds