TaiwanCalendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek) Méthode
Important
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Retourne la semaine de l’année qui contient la date du DateTime spécifié.
public:
override int GetWeekOfYear(DateTime time, System::Globalization::CalendarWeekRule rule, DayOfWeek firstDayOfWeek);
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
[<System.Runtime.InteropServices.ComVisible(false)>]
override this.GetWeekOfYear : DateTime * System.Globalization.CalendarWeekRule * DayOfWeek -> int
Public Overrides Function GetWeekOfYear (time As DateTime, rule As CalendarWeekRule, firstDayOfWeek As DayOfWeek) As Integer
- rule
- CalendarWeekRule
Une des valeurs CalendarWeekRule qui définit une semaine du calendrier.
Entier positif qui représente la semaine de l’année qui inclut la date dans le paramètre time
.
- Attributs
time
ou firstDayOfWeek
est en dehors de la plage prise en charge par le calendrier.
- ou -
rule
n’est pas une valeur de CalendarWeekRule valide.
L’exemple de code suivant montre comment le résultat de GetWeekOfYear varie en fonction des FirstDayOfWeek valeurs et CalendarWeekRule utilisées. Si la date spécifiée est le dernier jour de l’année, GetWeekOfYear retourne le nombre total de semaines de cette année.
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).
Cette méthode peut être utilisée pour déterminer le nombre de semaines dans l’année en définissant le time
paramètre sur le dernier jour de l’année.
La CultureInfo.DateTimeFormat propriété contient des valeurs spécifiques à la culture qui peuvent être utilisées pour les rule
paramètres et firstDayOfWeek
.
La FirstDayOfWeek propriété de CultureInfo.DateTimeFormat contient la valeur par défaut DayOfWeek qui représente le premier jour de la semaine pour une culture spécifique, à l’aide du calendrier spécifié dans la Calendar propriété de CultureInfo.DateTimeFormat.
La CalendarWeekRule propriété de CultureInfo.DateTimeFormat contient la valeur par défaut CalendarWeekRule qui définit une semaine calendaire pour une culture spécifique, à l’aide du calendrier spécifié dans la Calendar propriété de CultureInfo.DateTimeFormat.
Par exemple, dans GregorianCalendar, la GetWeekOfYear méthode du 1er janvier retourne 1.
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