JapaneseCalendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek) Méthode

Définition

Retourne la semaine de l’année qui contient la date du DateTime spécifié.Returns the week of the year that includes the date in the specified DateTime.

public:
 override int GetWeekOfYear(DateTime time, System::Globalization::CalendarWeekRule rule, DayOfWeek firstDayOfWeek);
[System.Runtime.InteropServices.ComVisible(false)]
public override int GetWeekOfYear (DateTime time, System.Globalization.CalendarWeekRule rule, DayOfWeek firstDayOfWeek);
override this.GetWeekOfYear : DateTime * System.Globalization.CalendarWeekRule * DayOfWeek -> int
Public Overrides Function GetWeekOfYear (time As DateTime, rule As CalendarWeekRule, firstDayOfWeek As DayOfWeek) As Integer

Paramètres

time
DateTime

DateTime à lire.The DateTime to read.

rule
CalendarWeekRule

Une des valeurs CalendarWeekRule qui définit une semaine du calendrier.One of the CalendarWeekRule values that defines a calendar week.

firstDayOfWeek
DayOfWeek

Une des valeurs DayOfWeek qui représente le premier jour de la semaine.One of the DayOfWeek values that represents the first day of the week.

Retours

Entier de base 1 qui représente la semaine de l’année qui inclut la date dans le paramètre time.A 1-based integer that represents the week of the year that includes the date in the time parameter.

Attributs

Exceptions

time ou firstDayOfWeek est en dehors de la plage prise en charge par le calendrier.time or firstDayOfWeek is outside the range supported by the calendar.

- ou --or- rule n’est pas une valeur de CalendarWeekRule valide.rule is not a valid CalendarWeekRule value.

Exemples

L’exemple de code suivant montre comment le résultat de GetWeekOfYear varie en fonction de la FirstDayOfWeek et CalendarWeekRule valeurs utilisées.The following code example shows how the result of GetWeekOfYear varies depending on the FirstDayOfWeek and CalendarWeekRule values used. Si la date spécifiée est le dernier jour de l’année, GetWeekOfYear retourne le nombre total de semaines de cette année.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.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
End Class


'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).

Remarques

Cette méthode peut être utilisée pour déterminer le nombre de semaines de l’année en affectant au paramètre time le dernier jour de l’année.This method can be used to determine the number of weeks in the year by setting the time parameter to the last day of the year.

La propriété CultureInfo.DateTimeFormat contient des valeurs spécifiques à la culture qui peuvent être utilisées pour les paramètres rule et firstDayOfWeek.The CultureInfo.DateTimeFormat property contains culture-specific values that can be used for the rule and firstDayOfWeek parameters.

La propriété FirstDayOfWeek de CultureInfo.DateTimeFormat contient la valeur de DayOfWeek par défaut qui représente le premier jour de la semaine pour une culture spécifique, à l’aide du calendrier spécifié dans la propriété Calendar de CultureInfo.DateTimeFormat.The FirstDayOfWeek property of CultureInfo.DateTimeFormat contains the default DayOfWeek value that represents the first day of the week for a specific culture, using the calendar specified in the Calendar property of CultureInfo.DateTimeFormat.

La propriété CalendarWeekRule de CultureInfo.DateTimeFormat contient la valeur de CalendarWeekRule par défaut qui définit une semaine du calendrier pour une culture spécifique, à l’aide du calendrier spécifié dans la propriété Calendar de CultureInfo.DateTimeFormat.The CalendarWeekRule property of CultureInfo.DateTimeFormat contains the default CalendarWeekRule value that defines a calendar week for a specific culture, using the calendar specified in the Calendar property of CultureInfo.DateTimeFormat.

Par exemple, dans GregorianCalendar, la méthode GetWeekOfYear pour le 1er janvier retourne 1.For example, in GregorianCalendar, the GetWeekOfYear method for January 1 returns 1.

S’applique à