ThaiBuddhistCalendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek) Метод

Определение

Возвращает неделю года, к которой относится дата в заданном типе DateTime.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

Параметры

time
DateTime

DateTime, который требуется прочитать.The DateTime to read.

rule
CalendarWeekRule

Одно из значений CalendarWeekRule, определяющее календарную неделю.One of the CalendarWeekRule values that defines a calendar week.

firstDayOfWeek
DayOfWeek

Одно из значений DayOfWeek, представляющее первый день недели.One of the DayOfWeek values that represents the first day of the week.

Возвращаемое значение

Положительное, начинающееся с единицы, целое число, представляющее неделю года, к которой относится дата в параметре time.A 1-based positive integer that represents the week of the year that includes the date in the time parameter.

Атрибуты

Исключения

Параметр time или firstDayOfWeek находятся вне поддерживаемого диапазона значений данного календаря.time or firstDayOfWeek is outside the range supported by the calendar.

-или--or- rule не является допустимым значением CalendarWeekRule.rule is not a valid CalendarWeekRule value.

Примеры

В следующем примере показано, как результат метода GetWeekOfYear зависит от значений FirstDayOfWeek и CalendarWeekRule.The following example shows how the result of the GetWeekOfYear method varies depending on the FirstDayOfWeek and CalendarWeekRule values used. Если указанная дата является последним днем года, GetWeekOfYear возвращает общее количество недель в этом году.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).

Комментарии

Этот метод можно использовать для определения количества недель в году, установив параметр time в последний день года.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.

CultureInfo.DateTimeFormat содержит значения, зависящие от языка и региональных параметров, которые можно использовать для параметров rule и firstDayOfWeek.CultureInfo.DateTimeFormat contains culture-specific values that can be used for the rule and firstDayOfWeek parameters.

Свойство FirstDayOfWeek CultureInfo.DateTimeFormat содержит значение DayOfWeek по умолчанию, представляющее первый день недели для конкретного языка и региональных параметров, используя календарь, указанный в свойстве Calendar 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.

Свойство CalendarWeekRule CultureInfo.DateTimeFormat содержит значение CalendarWeekRule по умолчанию, которое определяет календарную неделю для конкретного языка и региональных параметров, используя календарь, указанный в свойстве Calendar 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.

Например, в GregorianCalendarGetWeekOfYear 1 января возвращает 1.For example, in GregorianCalendar, GetWeekOfYear for January 1 returns 1.

Применяется к

Дополнительно