GregorianCalendar.MinSupportedDateTime プロパティ

定義

GregorianCalendar 型でサポートされている最も古い日付と時刻を取得します。Gets the earliest date and time supported by the GregorianCalendar type.

public:
 virtual property DateTime MinSupportedDateTime { DateTime get(); };
[System.Runtime.InteropServices.ComVisible(false)]
public override DateTime MinSupportedDateTime { get; }
member this.MinSupportedDateTime : DateTime
Public Overrides ReadOnly Property MinSupportedDateTime As DateTime

プロパティ値

GregorianCalendar の種類でサポートされている最も古い日付と時刻。これは、西暦0001年1月1日の最初の瞬間です。The earliest date and time supported by the GregorianCalendar type, which is the first moment of January 1, 0001 C.E. とは MinValueに相当します。and is equivalent to MinValue.

属性

次のコード例では、カレンダーの最小値と最大値を取得します。The following code example gets the minimum value and the maximum value of the calendar.

using namespace System;
using namespace System::Globalization;

int main()
{
   // Create an instance of the calendar.
   GregorianCalendar^ myCal = gcnew GregorianCalendar;
   Console::WriteLine( myCal );
   
   // Display the MinSupportedDateTime.
   DateTime myMin = myCal->MinSupportedDateTime;
   Console::WriteLine( "MinSupportedDateTime: {0:D2}/{1:D2}/{2:D4}", myCal->GetMonth( myMin ), myCal->GetDayOfMonth( myMin ), myCal->GetYear( myMin ) );
   
   // Display the MaxSupportedDateTime.
   DateTime myMax = myCal->MaxSupportedDateTime;
   Console::WriteLine( "MaxSupportedDateTime: {0:D2}/{1:D2}/{2:D4}", myCal->GetMonth( myMax ), myCal->GetDayOfMonth( myMax ), myCal->GetYear( myMax ) );
}

/*
This code produces the following output.

System.Globalization.GregorianCalendar
MinSupportedDateTime: 01/01/0001
MaxSupportedDateTime: 12/31/9999

*/
using System;
using System.Globalization;

public class SamplesCalendar  {

   public static void Main()  {

      // Create an instance of the calendar.
      GregorianCalendar myCal = new GregorianCalendar();
      Console.WriteLine( myCal.ToString() );

      // Display the MinSupportedDateTime.
      DateTime myMin = myCal.MinSupportedDateTime;
      Console.WriteLine( "MinSupportedDateTime: {0:D2}/{1:D2}/{2:D4}", myCal.GetMonth(myMin), myCal.GetDayOfMonth(myMin), myCal.GetYear(myMin) );

      // Display the MaxSupportedDateTime.
      DateTime myMax = myCal.MaxSupportedDateTime;
      Console.WriteLine( "MaxSupportedDateTime: {0:D2}/{1:D2}/{2:D4}", myCal.GetMonth(myMax), myCal.GetDayOfMonth(myMax), myCal.GetYear(myMax) );
   }
}


/*
This code produces the following output.

System.Globalization.GregorianCalendar
MinSupportedDateTime: 01/01/0001
MaxSupportedDateTime: 12/31/9999

*/
Imports System.Globalization

Public Class SamplesCalendar   

   Public Shared Sub Main()

      ' Create an instance of the calendar.
      Dim myCal As New GregorianCalendar()
      Console.WriteLine(myCal.ToString())

      ' Display the MinSupportedDateTime.
      Dim myMin As DateTime = myCal.MinSupportedDateTime
      Console.WriteLine("MinSupportedDateTime: {0:D2}/{1:D2}/{2:D4}", myCal.GetMonth(myMin), myCal.GetDayOfMonth(myMin), myCal.GetYear(myMin))

      ' Display the MaxSupportedDateTime.
      Dim myMax As DateTime = myCal.MaxSupportedDateTime
      Console.WriteLine("MaxSupportedDateTime: {0:D2}/{1:D2}/{2:D4}", myCal.GetMonth(myMax), myCal.GetDayOfMonth(myMax), myCal.GetYear(myMax))

   End Sub

End Class


'This code produces the following output.
'
'System.Globalization.GregorianCalendar
'MinSupportedDateTime: 01/01/0001
'MaxSupportedDateTime: 12/31/9999

注釈

MinSupportedDateTime プロパティの値は、西暦0001年1月1日の最初の瞬間ですが、グレゴリオ暦は1582年10月15日まで導入されていません。また、ヨーロッパ大陸と世界全体での導入は低速でした。Although the value of the MinSupportedDateTime property is the first moment of January 1, 0001 C.E., the Gregorian calendar was not introduced until October 15, 1582, and its adoption throughout the European continent and worldwide was slow. グレゴリオ暦を採用するまで、ヨーロッパ、アメリカ、オーストラリア大陸のほとんどのカルチャでは、JulianCalendar クラスで表されるユリウス暦が使用されていました。Until they adopted the Gregorian calendar, most cultures in the European, American, and Australian continents used the Julian calendar, which is represented by the JulianCalendar class.

適用対象