Calendar.Eras Property

Definition

Namespace:

System.Globalization

Assembly:

System.Runtime.dll

Source:

Calendar.cs

When overridden in a derived class, gets the list of eras in the current calendar.

public:
 abstract property cli::array <int> ^ Eras { cli::array <int> ^ get(); };

public abstract int[] Eras { get; }

member this.Eras : int[]

Public MustOverride ReadOnly Property Eras As Integer()

Property Value

Int32[]

An array of integers that represents the eras in the current calendar.

Examples

The following example displays the values contained in JapaneseCalendar.Eras when the Heisei era (1989-2019) was the current era.

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Creates and initializes a JapaneseCalendar.
   JapaneseCalendar^ myCal = gcnew JapaneseCalendar;
   
   // Displays the values in the Eras property.
   for ( int i = 0; i < myCal->Eras->Length; i++ )
   {
      Console::WriteLine( "Eras[ {0}] = {1}", i, myCal->Eras[ i ] );

   }
}

/*
This code produces the following output.

Eras->Item[0] = 4
Eras->Item[1] = 3
Eras->Item[2] = 2
Eras->Item[3] = 1

*/

using System;
using System.Globalization;

public class SamplesJapaneseCalendar  {

   public static void Main()  {

      // Creates and initializes a JapaneseCalendar.
      JapaneseCalendar myCal = new JapaneseCalendar();

      // Displays the values in the Eras property.
      for ( int i = 0; i < myCal.Eras.Length; i++ )  {
         Console.WriteLine( "Eras[{0}] = {1}", i, myCal.Eras[i] );
      }
   }
}

/*
This code produces the following output.

Eras[0] = 4
Eras[1] = 3
Eras[2] = 2
Eras[3] = 1

*/

Imports System.Globalization

Public Class SamplesJapaneseCalendar

   Public Shared Sub Main()

      ' Creates and initializes a JapaneseCalendar.
      Dim myCal As New JapaneseCalendar()

      ' Displays the values in the Eras property.
      Dim i As Integer
      For i = 0 To myCal.Eras.Length - 1
         Console.WriteLine("Eras[{0}] = {1}", i, myCal.Eras(i))
      Next i

   End Sub

End Class

'This code produces the following output.
'
'Eras[0] = 4
'Eras[1] = 3
'Eras[2] = 2
'Eras[3] = 1
'

Remarks

The eras are in reverse chronological order, with the current era as the first element of the array, and the oldest era as the last element of the array. For example, the value of the current era in JapaneseCalendar is 4, which is the first element of the array. Only the JapaneseCalendar and the JapaneseLunisolarCalendar classes support multiple eras.

Important

Eras in the Japanese calendars are based on the emperor's reign and are therefore expected to change. For example, May 1, 2019 marked the beginning of the Reiwa era in the JapaneseCalendar and JapaneseLunisolarCalendar. Such a change of era affects all applications that use these calendars. For more information and to determine whether your applications are affected, see Handling a new era in the Japanese calendar in .NET. For information on testing your applications on Windows systems to ensure their readiness for the era change, see Prepare your application for the Japanese era change. For features in .NET that support calendars with multiple eras and for best practices when working with calendars that support multiple eras, see Working with eras.

The JapaneseCalendar and JapaneseLunisolarCalendar classes support multiple eras. Most calendar implementations, on the other hand, support a single era.

See also

• CurrentEra