DateTimeFormatInfo.Calendar DateTimeFormatInfo.Calendar DateTimeFormatInfo.Calendar DateTimeFormatInfo.Calendar Property

Definición

Obtiene o establece el calendario que se utilizará para la referencia cultural actual.Gets or sets the calendar to use for the current culture.

public:
 property System::Globalization::Calendar ^ Calendar { System::Globalization::Calendar ^ get(); void set(System::Globalization::Calendar ^ value); };
public System.Globalization.Calendar Calendar { get; set; }
member this.Calendar : System.Globalization.Calendar with get, set
Public Property Calendar As Calendar

Valor de propiedad

Calendario que se usará para la referencia cultural actual.The calendar to use for the current culture. El valor predeterminado de InvariantInfo es un objeto GregorianCalendar.The default for InvariantInfo is a GregorianCalendar object.

Excepciones

La propiedad se establece en null.The property is being set to null.

Esta propiedad se establece en un objeto Calendar que no es válido para la referencia cultural actual.The property is being set to a Calendar object that is not valid for the current culture.

La propiedad está establecida y el objeto DateTimeFormatInfo es de solo lectura.The property is being set and the DateTimeFormatInfo object is read-only.

Ejemplos

En el ejemplo siguiente se define un ChangeCalendar método que cambia el calendario actual de la referencia cultural a un calendario indicado a menos que ya sea el calendario actual o si no es compatible con la referencia cultural.The following example defines a ChangeCalendar method that changes a culture's current calendar to a specified calendar unless it is already the current calendar or if it is not supported by the culture. Crea una instancia en el código que llama al método un CultureInfo objeto que representa la referencia cultural árabe (Egipto) y en primer lugar intenta cambiar su calendario en el calendario japonés.The code that calls the method instantiates a CultureInfo object that represents the Arabic (Egypt) culture and first attempts to change its calendar to the Japanese calendar. Porque no se admite el calendario japonés, hace que el método no cambia el calendario de la referencia cultural.Because the Japanese calendar is not supported, the method makes not change the culture's calendar. Sin embargo, dado que la um-al-Qura calendario es un miembro de la CultureInfo.OptionalCalendars colección, el método tiene éxito en lo que el calendario actual el de la referencia cultural ar-EG.However, because the Umm al-Qura calendar is a member of the CultureInfo.OptionalCalendars collection, the method does succeed in making it the current calendar for the ar-EG culture.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      CultureInfo ci = CultureInfo.CreateSpecificCulture("ar-EG");
      Console.WriteLine("The current calendar for the {0} culture is {1}",
                        ci.Name, 
                        CalendarUtilities.ShowCalendarName(ci.DateTimeFormat.Calendar));

      CalendarUtilities.ChangeCalendar(ci, new JapaneseCalendar());
      Console.WriteLine("The current calendar for the {0} culture is {1}",
                        ci.Name, 
                        CalendarUtilities.ShowCalendarName(ci.DateTimeFormat.Calendar));
      
      CalendarUtilities.ChangeCalendar(ci, new UmAlQuraCalendar());
      Console.WriteLine("The current calendar for the {0} culture is {1}",
                        ci.Name, 
                        CalendarUtilities.ShowCalendarName(ci.DateTimeFormat.Calendar));
   }
}

public class CalendarUtilities
{
   private Calendar newCal;
   private bool isGregorian;
   
   public static void ChangeCalendar(CultureInfo ci, Calendar cal)
   {
      CalendarUtilities util = new CalendarUtilities(cal);
      
      // Is the new calendar already the current calendar?
      if (util.CalendarExists(ci.DateTimeFormat.Calendar))
         return;

      // Is the new calendar supported?
      if (Array.Exists(ci.OptionalCalendars, util.CalendarExists))
         ci.DateTimeFormat.Calendar = cal;
   }
   
   private CalendarUtilities(Calendar cal)
   {
      newCal = cal;
      
      // Is the new calendar a Gregorian calendar?
      isGregorian = cal.GetType().Name.Contains("Gregorian");
   }
   
   private bool CalendarExists(Calendar cal)
   {
      if (cal.ToString() == newCal.ToString()) {
         if (isGregorian) {
            if (((GregorianCalendar) cal).CalendarType == 
               ((GregorianCalendar) newCal).CalendarType)
               return true;
         }
         else {
            return true;
         }
      }
      return false;
   }

   public static string ShowCalendarName(Calendar cal)
   {
      string calName = cal.ToString().Replace("System.Globalization.", "");
      if (cal is GregorianCalendar)
         calName += ", Type " + ((GregorianCalendar) cal).CalendarType.ToString();

      return calName; 
   }
}
// The example displays the following output:
//    The current calendar for the ar-EG culture is GregorianCalendar, Type Localized
//    The current calendar for the ar-EG culture is GregorianCalendar, Type Localized
//    The current calendar for the ar-EG culture is UmAlQuraCalendar
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim ci As CultureInfo = CultureInfo.CreateSpecificCulture("ar-EG")
      Console.WriteLine("The current calendar for the {0} culture is {1}",
                        ci.Name, 
                        CalendarUtilities.ShowCalendarName(ci.DateTimeFormat.Calendar))

      CalendarUtilities.ChangeCalendar(ci, New JapaneseCalendar())
      Console.WriteLine("The current calendar for the {0} culture is {1}",
                        ci.Name, 
                        CalendarUtilities.ShowCalendarName(ci.DateTimeFormat.Calendar))
      
      CalendarUtilities.ChangeCalendar(ci, New UmAlQuraCalendar())
      Console.WriteLine("The current calendar for the {0} culture is {1}",
                        ci.Name, 
                        CalendarUtilities.ShowCalendarName(ci.DateTimeFormat.Calendar))
   End Sub
End Module

Public Class CalendarUtilities
   Private newCal As Calendar
   Private isGregorian As Boolean
   
   Public Shared Sub ChangeCalendar(ci As CultureInfo, cal As Calendar)
      Dim util As New CalendarUtilities(cal)
      
      ' Is the new calendar already the current calendar?
      If util.CalendarExists(ci.DateTimeFormat.Calendar) Then
         Exit Sub
      End If

      ' Is the new calendar supported?
      If Array.Exists(ci.OptionalCalendars, AddressOf util.CalendarExists) Then
         ci.DateTimeFormat.Calendar = cal
      End If
   End Sub
   
   Private Sub New(cal As Calendar)
      newCal = cal
      
      ' Is the new calendar a Gregorian calendar?
      isGregorian = cal.GetType().Name.Contains("Gregorian")
   End Sub
   
   Private Function CalendarExists(cal As Calendar) As Boolean
      If cal.ToString() = newCal.ToString Then
         If isGregorian Then
            If CType(cal, GregorianCalendar).CalendarType = 
               CType(newCal, GregorianCalendar).CalendarType Then
               Return True
            End If
         Else
            Return True
         End If
      End If
      Return False
   End Function

   Public Shared Function ShowCalendarName(cal As Calendar) As String
      Dim calName As String = cal.ToString().Replace("System.Globalization.", "")
      If TypeOf cal Is GregorianCalendar Then
         calName += ", Type " + CType(cal, GregorianCalendar).CalendarType.ToString()
      End If
      Return calName 
   End Function
End Class
' The example displays the following output:
'    The current calendar for the ar-EG culture is GregorianCalendar, Type Localized
'    The current calendar for the ar-EG culture is GregorianCalendar, Type Localized
'    The current calendar for the ar-EG culture is UmAlQuraCalendar

Comentarios

El Calendar propiedad sólo acepta calendarios que son válidos para la referencia cultural que está asociada el DateTimeFormatInfo objeto.The Calendar property accepts only calendars that are valid for the culture that is associated with the DateTimeFormatInfo object. El CultureInfo.OptionalCalendars propiedad especifica los calendarios que pueden usar una referencia cultural determinada, y el CultureInfo.Calendar propiedad especifica el calendario predeterminado para la referencia cultural.The CultureInfo.OptionalCalendars property specifies the calendars that can be used by a particular culture, and the CultureInfo.Calendar property specifies the default calendar for the culture.

Importante

Las eras en los calendarios japoneses se basan en el reino del emperador y, por tanto, se espera que cambien.Eras in the Japanese calendars are based on the emperor's reign and are therefore expected to change. Por ejemplo, el 1 de mayo de 2019 marcaba el comienzo de la era Reiwa en JapaneseCalendar y JapaneseLunisolarCalendar.For example, May 1, 2019 marked the beginning of the Reiwa era in the JapaneseCalendar and JapaneseLunisolarCalendar. Este cambio de era afecta a todas las aplicaciones que usan estos calendarios.Such a change of era affects all applications that use these calendars. Para obtener más información y determinar si sus aplicaciones están entre las afectadas, consulte Handling a new era in the Japanese calendar in .NET (Gestión de una nueva era del calendario japonés en .NET).See Handling a new era in the Japanese calendar in .NET for more information and to determine whether your applications are affected. Para obtener más información sobre cómo probar aplicaciones en sistemas Windows para garantizar que estén preparadas para el cambio de era, consulte Prepare your application for the Japanese era change (Preparación de la aplicación para el cambio de era japonesa).See Prepare your application for the Japanese era change for information on testing your applications on Windows systems to ensure their readiness for the era change. Consulte Trabajar con eras para ver las características de .NET que admiten calendarios con varias eras y procedimientos recomendados al trabajar con calendarios que admiten varias eras.See Working with eras for features in .NET that support calendars with multiple eras and for best practices when working with calendars that support multiple eras.

Cambiar el valor de esta propiedad afecta a las siguientes propiedades: MonthNames, AbbreviatedMonthNames, DayNames, AbbreviatedDayNames, CalendarWeekRule, FirstDayOfWeek, FullDateTimePattern, LongDatePattern, ShortDatePattern, YearMonthPattern , y MonthDayPattern.Changing the value of this property affects the following properties as well: MonthNames, AbbreviatedMonthNames, DayNames, AbbreviatedDayNames, CalendarWeekRule, FirstDayOfWeek, FullDateTimePattern, LongDatePattern, ShortDatePattern, YearMonthPattern, and MonthDayPattern.

Por ejemplo, si la referencia cultural del subproceso actual es japonés, esta propiedad acepta JapaneseCalendar, Localized GregorianCalendar, o USEnglish GregorianCalendar.For example, if the culture of the current thread is Japanese, this property accepts JapaneseCalendar, LocalizedGregorianCalendar, or USEnglishGregorianCalendar. Cuando el JapaneseCalendar se usa el especificador es de fecha larga predeterminado "gg y '\x5e74 ' m' \x6708 tenía '\x65e5'".When the JapaneseCalendar is used, the default long date specifier is "gg y'\x5e74'M'\x6708'd'\x65e5'". Cuando el Localized GregorianCalendar, se utiliza el predeterminado de fecha larga especificador es "yyyy '\x5e74 ' m' \x6708 tenía '\x65e5'".When the LocalizedGregorianCalendar, is used, the default long date specifier is "yyyy'\x5e74'M'\x6708'd'\x65e5'".

Se aplica a

Consulte también: