Calendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek) Calendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek) Calendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek) Calendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek) Method

public:
 virtual int GetWeekOfYear(DateTime time, System::Globalization::CalendarWeekRule rule, DayOfWeek firstDayOfWeek);

public virtual int GetWeekOfYear (DateTime time, System.Globalization.CalendarWeekRule rule, DayOfWeek firstDayOfWeek);

abstract member GetWeekOfYear : DateTime * System.Globalization.CalendarWeekRule * DayOfWeek -> int
override this.GetWeekOfYear : DateTime * System.Globalization.CalendarWeekRule * DayOfWeek -> int

Public Overridable Function GetWeekOfYear (time As DateTime, rule As CalendarWeekRule, firstDayOfWeek As DayOfWeek) As Integer

Parámetros

Devoluciones

Excepciones

Ejemplos

El siguiente ejemplo de código muestra cómo el resultado de GetWeekOfYear varía en función de la FirstDayOfWeek y CalendarWeekRule utilizado.The following code example shows how the result of GetWeekOfYear varies depending on the FirstDayOfWeek and the CalendarWeekRule used. Si la fecha especificada es el último día del año, GetWeekOfYear devuelve el número total de semanas de ese año.If the specified date is the last day of the year, GetWeekOfYear returns the total number of weeks in that year.

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Gets the Calendar instance associated with a CultureInfo.
   CultureInfo^ myCI = gcnew CultureInfo( "en-US" );
   Calendar^ myCal = myCI->Calendar;
   
   // Gets the DTFI properties required by GetWeekOfYear.
   CalendarWeekRule myCWR = myCI->DateTimeFormat->CalendarWeekRule;
   DayOfWeek myFirstDOW = myCI->DateTimeFormat->FirstDayOfWeek;
   
   // Displays the number of the current week relative to the beginning of the year.
   Console::WriteLine( "The CalendarWeekRule used for the en-US culture is {0}.", myCWR );
   Console::WriteLine( "The FirstDayOfWeek used for the en-US culture is {0}.", myFirstDOW );
   Console::WriteLine( "Therefore, the current week is Week {0} of the current year.", myCal->GetWeekOfYear( DateTime::Now, myCWR, myFirstDOW ) );
   
   // Displays the total number of weeks in the current year.
   DateTime LastDay = System::DateTime( DateTime::Now.Year, 12, 31 );
   Console::WriteLine( "There are {0} weeks in the current year ( {1}).", myCal->GetWeekOfYear( LastDay, myCWR, myFirstDOW ), LastDay.Year );
}

/*
This code produces the following output.  Results vary depending on the system date.

The CalendarWeekRule used for the en-US culture is FirstDay.
The FirstDayOfWeek used for the en-US culture is Sunday.
Therefore, the current week is Week 1 of the current year.
There are 53 weeks in the current year (2001).
*/

using System;
using System.Globalization;


public class SamplesCalendar  {

   public static void Main()  {

      // Gets the Calendar instance associated with a CultureInfo.
      CultureInfo myCI = new CultureInfo("en-US");
      Calendar myCal = myCI.Calendar;

      // Gets the DTFI properties required by GetWeekOfYear.
      CalendarWeekRule myCWR = myCI.DateTimeFormat.CalendarWeekRule;
      DayOfWeek myFirstDOW = myCI.DateTimeFormat.FirstDayOfWeek;

      // Displays the number of the current week relative to the beginning of the year.
      Console.WriteLine( "The CalendarWeekRule used for the en-US culture is {0}.", myCWR );
      Console.WriteLine( "The FirstDayOfWeek used for the en-US culture is {0}.", myFirstDOW );
      Console.WriteLine( "Therefore, the current week is Week {0} of the current year.", myCal.GetWeekOfYear( DateTime.Now, myCWR, myFirstDOW ));

      // Displays the total number of weeks in the current year.
      DateTime LastDay = new System.DateTime( DateTime.Now.Year, 12, 31 );
      Console.WriteLine( "There are {0} weeks in the current year ({1}).", myCal.GetWeekOfYear( LastDay, myCWR, myFirstDOW ), LastDay.Year );

   }

}

/*
This code produces the following output.  Results vary depending on the system date.

The CalendarWeekRule used for the en-US culture is FirstDay.
The FirstDayOfWeek used for the en-US culture is Sunday.
Therefore, the current week is Week 1 of the current year.
There are 53 weeks in the current year (2001).

*/

Imports System
Imports System.Globalization

Public Class SamplesCalendar

   Public Shared Sub Main()
      
      ' Gets the Calendar instance associated with a CultureInfo.
      Dim myCI As New CultureInfo("en-US")
      Dim myCal As Calendar = myCI.Calendar
      
      ' Gets the DTFI properties required by GetWeekOfYear.
      Dim myCWR As CalendarWeekRule = myCI.DateTimeFormat.CalendarWeekRule
      Dim myFirstDOW As DayOfWeek = myCI.DateTimeFormat.FirstDayOfWeek
      
      ' Displays the number of the current week relative to the beginning of the year.
      Console.WriteLine("The CalendarWeekRule used for the en-US culture is {0}.", myCWR)
      Console.WriteLine("The FirstDayOfWeek used for the en-US culture is {0}.", myFirstDOW)
      Console.WriteLine("Therefore, the current week is Week {0} of the current year.", myCal.GetWeekOfYear(DateTime.Now, myCWR, myFirstDOW))
      
      ' Displays the total number of weeks in the current year.
      Dim LastDay = New System.DateTime(DateTime.Now.Year, 12, 31)
      Console.WriteLine("There are {0} weeks in the current year ({1}).", myCal.GetWeekOfYear(LastDay, myCWR, myFirstDOW), LastDay.Year)
   End Sub 'Main 
End Class 'SamplesCalendar


'This code produces the following output.  Results vary depending on the system date.
'
'The CalendarWeekRule used for the en-US culture is FirstDay.
'The FirstDayOfWeek used for the en-US culture is Sunday.
'Therefore, the current week is Week 1 of the current year.
'There are 53 weeks in the current year (2001).

Comentarios

Este método puede utilizarse para determinar el número de semanas del año estableciendo time al último día del año.This method can be used to determine the number of weeks in the year by setting time to the last day of the year.

El DateTimeFormatInfo objeto para una determinada referencia cultural que utiliza el calendario indicado por el DateTimeFormatInfo.Calendar propiedad incluye los siguientes valores específicos de referencias culturales que se pueden usar para la rule y firstDayOfWeek parámetros:The DateTimeFormatInfo object for a particular culture that uses the calendar indicated by the DateTimeFormatInfo.Calendar property includes the following culture-specific values that can be used for the rule and firstDayOfWeek parameters:

• El DateTimeFormatInfo.FirstDayOfWeek propiedad contiene el valor predeterminado de primer día de la semana en que se puede usar para el firstDayOfWeek parámetro.The DateTimeFormatInfo.FirstDayOfWeek property contains the default first day of the week that can be used for the firstDayOfWeek parameter.

• El DateTimeFormatInfo.CalendarWeekRule propiedad contiene la regla de semana del calendario predeterminado que se puede usar para el rule parámetro.The DateTimeFormatInfo.CalendarWeekRule property contains the default calendar week rule that can be used for the rule parameter.

En el ejemplo siguiente se usa la referencia cultural actual DateTimeFormatInfo objeto para determinar que el 1 de enero de 2011 se encuentra en la primera semana del año del calendario gregoriano.The following example uses the current culture's DateTimeFormatInfo object to determine that January 1, 2011 is in the first week of the year in the Gregorian calendar.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      DateTimeFormatInfo dfi = DateTimeFormatInfo.CurrentInfo;
      DateTime date1 = new DateTime(2011, 1, 1);
      Calendar cal = dfi.Calendar;
      
      Console.WriteLine("{0:d}: Week {1} ({2})", date1, 
                        cal.GetWeekOfYear(date1, dfi.CalendarWeekRule, 
                                          dfi.FirstDayOfWeek),
                        cal.ToString().Substring(cal.ToString().LastIndexOf(".") + 1));       
   }
}
// The example displays the following output:
//       1/1/2011: Week 1 (GregorianCalendar)

Imports System.Globalization

Module Example
   Public Sub Main()
      Dim dfi As DateTimeFormatInfo = DateTimeFormatInfo.CurrentInfo
      Dim date1 As Date = #1/1/2011#
      Dim cal As Calendar = dfi.Calendar
      
      Console.WriteLine("{0:d}: Week {1} ({2})", date1, 
                        cal.GetWeekOfYear(date1, dfi.CalendarWeekRule, 
                                          dfi.FirstDayOfWeek),
                        cal.ToString().Substring(cal.ToString().LastIndexOf(".") + 1))       
   End Sub
End Module
' The example displays the following output:
'       1/1/2011: Week 1 (GregorianCalendar)

Para algunos calendarios, una llamada a la GetWeekOfYear método produce una ArgumentOutOfRangeException para combinaciones particulares de rule y firstDayOfWeek aunque se utilicen valores time es mayor que la fecha devuelta por dicho calendario MinSupportedDateTime propiedad.For some calendars, a call to the GetWeekOfYear method throws an ArgumentOutOfRangeException for particular combinations of rule and firstDayOfWeek values even if time is greater than the date returned by that calendar's MinSupportedDateTime property. En la tabla siguiente se enumera los calendarios afectados, específico del rule valores y el intervalo de la primera compatibles time valores.The following table lists the affected calendars, the specific rule values, and the range of the earliest supported time values. El mínimo específico DateTime valor depende del valor de la firstDayOfWeek parámetro.The specific minimum DateTime value depends on the value of the firstDayOfWeek parameter.

CalendarioCalendar	Valor CalendarWeekRuleCalendarWeekRule value	Fecha del calendario gregoriano (M/dd/aaaa)Gregorian date (M/dd/yyyy)	Fecha de calendario (M/dd/aaaa)Date in calendar (M/dd/yyyy)
ChineseLunisolarCalendar	FirstFullWeek	2/19/1901 a 25/2/19012/19/1901 to 2/25/1901	1/1/1901 a 1/7/1901.1/1/1901 to 1/7/1901
ChineseLunisolarCalendar	FirstFourDayWeek	2/19/1901 a 22/2/19012/19/1901 to 2/22/1901	01/1/1901 a 1/04/1901.1/01/1901 to 1/04/1901
HebrewCalendar	FirstDay	9/17/15839/17/1583	1/01/53441/01/5344
HebrewCalendar	FirstFullWeek	9/17/1583 a 9/23/15839/17/1583 to 9/23/1583	1/01/5344 a 1/07/53441/01/5344 to 1/07/5344
HebrewCalendar	FirstFourDayWeek	9/17/1583 a 9/20/15839/17/1583 to 9/20/1583	1/01/5344 a 1/04/53441/01/5344 to 1/04/5344
HijriCalendar	FirstFullWeek	7/18/0622 a 7/24/06227/18/0622 to 7/24/0622	01/1/0001 a 07/1/00011/01/0001 to 1/07/0001
HijriCalendar	FirstFourDayWeek	7/18/0622 a 7/21/06227/18/0622 to 7/21/0622	01/1/0001 a las 04/1/00011/01/0001 to 1/04/0001
JapaneseLunisolarCalendar	FirstFullWeek	28/1/1960 a 2/03/1960.1/28/1960 to 2/03/1960	1/01/35 a 1/07/00351/01/35 to 1/07/0035
JapaneseLunisolarCalendar	FirstFourDayWeek	28/1/1960 a 1/31/1960.1/28/1960 to 1/31/1960	1/01/0035 a 1/04/00351/01/0035 to 1/04/0035
JulianCalendar	FirstFullWeek	01/1/0001 a 05/1/00011/01/0001 to 1/05/0001	03/1/0001 a 07/1/00011/03/0001 to 1/07/0001
JulianCalendar	FirstFourDayWeek	01/1/0001 a 02/1/00011/01/0001 to 1/02/0001	03/1/0001 a las 04/1/00011/03/0001 to 1/04/0001
KoreanLunisolarCalendar	FirstFullWeek	2/14/0918 a 2/20/09182/14/0918 to 2/20/0918	1/01/0918 a 1/07/09181/01/0918 to 1/07/0918
KoreanLunisolarCalendar	FirstFourDayWeek	2/14/0918 a 2/17/09182/14/0918 to 2/17/0918	1/01/0918 a 1/04/09181/01/0918 to 1/04/0918
PersianCalendar	FirstFullWeek	21/3/0622 a 3/27/06223/21/0622 to 3/27/0622	01/1/0001 a 07/1/00011/01/0001 to 1/07/0001
PersianCalendar	FirstFourDayWeek	21/3/0622 a 3/24/06223/21/0622 to 3/24/0622	01/1/0001 a las 04/1/00011/01/0001 to 1/04/0001
TaiwanLunisolarCalendar	FirstFullWeek	2/18/1912 al 24/2/19122/18/1912 to 2/24/1912	01/1/0001 a 07/1/00011/01/0001 to 1/07/0001
TaiwanLunisolarCalendar	FirstFourDayWeek	2/18/1912 al 21/2/19122/18/1912 to 2/21/1912	01/1/0001 a las 04/1/00011/01/0001 to 1/04/0001
UmAlQuraCalendar	FirstFullWeek	30/4/1900 a 5/06/1900.4/30/1900 to 5/06/1900	1/01/1318 a 1/07/13181/01/1318 to 1/07/1318
UmAlQuraCalendar	FirstFourDayWeek	30/4/1900 a 5/03/1900.4/30/1900 to 5/03/1900	1/01/1318 a 1/04/13181/01/1318 to 1/04/1318

Se aplica a

Consulte también:

• DateTime DateTime DateTime DateTime
• CalendarWeekRule CalendarWeekRule CalendarWeekRule CalendarWeekRule
• DayOfWeek DayOfWeek DayOfWeek DayOfWeek
• GetEra(DateTime) GetEra(DateTime) GetEra(DateTime) GetEra(DateTime)
• GetYear(DateTime) GetYear(DateTime) GetYear(DateTime) GetYear(DateTime)
• GetMonth(DateTime) GetMonth(DateTime) GetMonth(DateTime) GetMonth(DateTime)
• GetDayOfYear(DateTime) GetDayOfYear(DateTime) GetDayOfYear(DateTime) GetDayOfYear(DateTime)
• GetDayOfMonth(DateTime) GetDayOfMonth(DateTime) GetDayOfMonth(DateTime) GetDayOfMonth(DateTime)
• GetDayOfWeek(DateTime) GetDayOfWeek(DateTime) GetDayOfWeek(DateTime) GetDayOfWeek(DateTime)
• GetHour(DateTime) GetHour(DateTime) GetHour(DateTime) GetHour(DateTime)
• GetMinute(DateTime) GetMinute(DateTime) GetMinute(DateTime) GetMinute(DateTime)
• GetSecond(DateTime) GetSecond(DateTime) GetSecond(DateTime) GetSecond(DateTime)
• GetMilliseconds(DateTime) GetMilliseconds(DateTime) GetMilliseconds(DateTime) GetMilliseconds(DateTime)