Calendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek) 메서드

정의

지정된 DateTime 값의 날짜가 포함된 주(연도 기준)를 반환합니다.Returns the week of the year that includes the date in the specified DateTime value.

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

매개 변수

time
DateTime

날짜 및 시간 값입니다.A date and time value.

rule
CalendarWeekRule

주를 정의하는 열거형 값입니다.An enumeration value that defines a calendar week.

firstDayOfWeek
DayOfWeek

주의 첫째 요일을 정의하는 열거형 값입니다.An enumeration value that represents the first day of the week.

반환

Int32

time 매개 변수의 날짜가 포함된 주(연도 기준)를 나타내는 양의 정수입니다.A positive integer that represents the week of the year that includes the date in the time parameter.

예외

timeMinSupportedDateTime보다 이전이거나 MaxSupportedDateTime보다 이후인 경우time is earlier than MinSupportedDateTime or later than MaxSupportedDateTime.

또는-or- firstDayOfWeek는 유효한 DayOfWeek 값이 아닙니다.firstDayOfWeek is not a valid DayOfWeek value.

또는-or- rule는 유효한 CalendarWeekRule 값이 아닙니다.rule is not a valid CalendarWeekRule value.

예제

다음 코드 예제에서는의 결과가 및 사용에 따라 어떻게 달라 지는 지를 보여 줍니다 GetWeekOfYear FirstDayOfWeek CalendarWeekRule .The following code example shows how the result of GetWeekOfYear varies depending on the FirstDayOfWeek and the CalendarWeekRule used. 지정 된 날짜가 연도의 마지막 날 이면 GetWeekOfYear 해당 연도의 총 주 수를 반환 합니다.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).

설명

이 메서드를 사용 하 여 연도의 마지막 날로 설정 하 여 연간 주 수를 확인할 수 있습니다 time .This method can be used to determine the number of weeks in the year by setting time to the last day of the year.

DateTimeFormatInfo속성에 지정 된 달력을 사용 하는 특정 문화권에 대 한 개체에는 DateTimeFormatInfo.Calendar rule 및 매개 변수에 사용할 수 있는 다음과 같은 문화권 관련 값이 포함 됩니다 firstDayOfWeek .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:

다음 예제에서는 현재 문화권의 개체를 사용 하 여 DateTimeFormatInfo 2011 년 1 월 1 일이 양력에서 연도의 첫째 주에 있는지 확인 합니다.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)

일부 달력의 경우 메서드를 호출 하면 GetWeekOfYear ArgumentOutOfRangeException rule firstDayOfWeek time 가 해당 달력의 속성에서 반환 된 날짜 보다 큰 경우에도 및 값의 특정 조합에 대해이 throw 됩니다 MinSupportedDateTime .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. 다음 표에서는 영향을 받는 달력, 특정 rule 값 및 가장 이른 지원 값의 범위를 나열 합니다 time .The following table lists the affected calendars, the specific rule values, and the range of the earliest supported time values. 특정 최소값은 DateTime 매개 변수의 값에 따라 달라 집니다 firstDayOfWeek .The specific minimum DateTime value depends on the value of the firstDayOfWeek parameter.

달력Calendar CalendarWeekRule 값CalendarWeekRule value 양력 날짜 (M/dd/yyyy)Gregorian date (M/dd/yyyy) 달력의 날짜 (M/dd/yyyy)Date in calendar (M/dd/yyyy)
ChineseLunisolarCalendar FirstFullWeek 2/19/1901 ~ 2/25/19012/19/1901 to 2/25/1901 1/1/1901 ~ 1/7/19011/1/1901 to 1/7/1901
ChineseLunisolarCalendar FirstFourDayWeek 2/19/1901 ~ 2/22/19012/19/1901 to 2/22/1901 1/01/1901 ~ 1/04/19011/01/1901 to 1/04/1901
HebrewCalendar FirstDay 9/17/15839/17/1583 1/01/53441/01/5344
HebrewCalendar FirstFullWeek 9/17/1583 ~ 9/23/15839/17/1583 to 9/23/1583 1/01/5344 ~ 1/07/53441/01/5344 to 1/07/5344
HebrewCalendar FirstFourDayWeek 9/17/1583 ~ 9/20/15839/17/1583 to 9/20/1583 1/01/5344 ~ 1/04/53441/01/5344 to 1/04/5344
HijriCalendar FirstFullWeek 7/18/0622 ~ 7/24/06227/18/0622 to 7/24/0622 1/01/0001 ~ 1/07/00011/01/0001 to 1/07/0001
HijriCalendar FirstFourDayWeek 7/18/0622 ~ 7/21/06227/18/0622 to 7/21/0622 1/01/0001 ~ 1/04/00011/01/0001 to 1/04/0001
JapaneseLunisolarCalendar FirstFullWeek 1/28/1960 ~ 2/03/19601/28/1960 to 2/03/1960 1/01/35 ~ 1/07/00351/01/35 to 1/07/0035
JapaneseLunisolarCalendar FirstFourDayWeek 1/28/1960 ~ 1/31/19601/28/1960 to 1/31/1960 1/01/0035 ~ 1/04/00351/01/0035 to 1/04/0035
JulianCalendar FirstFullWeek 1/01/0001 ~ 1/05/00011/01/0001 to 1/05/0001 1/03/0001 ~ 1/07/00011/03/0001 to 1/07/0001
JulianCalendar FirstFourDayWeek 1/01/0001 ~ 1/02/00011/01/0001 to 1/02/0001 1/03/0001 ~ 1/04/00011/03/0001 to 1/04/0001
KoreanLunisolarCalendar FirstFullWeek 2/14/0918 ~ 2/20/09182/14/0918 to 2/20/0918 1/01/0918 ~ 1/07/09181/01/0918 to 1/07/0918
KoreanLunisolarCalendar FirstFourDayWeek 2/14/0918 ~ 2/17/09182/14/0918 to 2/17/0918 1/01/0918 ~ 1/04/09181/01/0918 to 1/04/0918
PersianCalendar FirstFullWeek 3/21/0622 ~ 3/27/06223/21/0622 to 3/27/0622 1/01/0001 ~ 1/07/00011/01/0001 to 1/07/0001
PersianCalendar FirstFourDayWeek 3/21/0622 ~ 3/24/06223/21/0622 to 3/24/0622 1/01/0001 ~ 1/04/00011/01/0001 to 1/04/0001
TaiwanLunisolarCalendar FirstFullWeek 2/18/1912 ~ 2/24/19122/18/1912 to 2/24/1912 1/01/0001 ~ 1/07/00011/01/0001 to 1/07/0001
TaiwanLunisolarCalendar FirstFourDayWeek 2/18/1912 ~ 2/21/19122/18/1912 to 2/21/1912 1/01/0001 ~ 1/04/00011/01/0001 to 1/04/0001
UmAlQuraCalendar FirstFullWeek 4/30/1900 ~ 5/06/19004/30/1900 to 5/06/1900 1/01/1318 ~ 1/07/13181/01/1318 to 1/07/1318
UmAlQuraCalendar FirstFourDayWeek 4/30/1900 ~ 5/03/19004/30/1900 to 5/03/1900 1/01/1318 ~ 1/04/13181/01/1318 to 1/04/1318

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