DateTimeOffset.DayOfWeek 속성

정의

네임스페이스:

System

어셈블리:

System.Runtime.dll

어셈블리:

mscorlib.dll

어셈블리:

netstandard.dll

현재 DateTimeOffset 개체가 나타내는 요일을 가져옵니다.

public:
 property DayOfWeek DayOfWeek { DayOfWeek get(); };

public DayOfWeek DayOfWeek { get; }

member this.DayOfWeek : DayOfWeek

Public ReadOnly Property DayOfWeek As DayOfWeek

속성 값

DayOfWeek

현재 DateTimeOffset 개체의 요일을 나타내는 열거형 값 중 하나입니다.

예제

다음 예제에서는 2008년 매월 첫째 날의 평일 이름을 표시합니다.

DateTimeOffset startOfMonth = new DateTimeOffset(2008, 1, 1, 0, 0, 0,
                                         DateTimeOffset.Now.Offset);
int year = startOfMonth.Year;
do
{
   Console.WriteLine("{0:MMM d, yyyy} is a {1}.", startOfMonth, startOfMonth.DayOfWeek);
   startOfMonth = startOfMonth.AddMonths(1);
}
while (startOfMonth.Year == year);
// This example writes the following output to the console:
//    Jan 1, 2008 is a Tuesday.
//    Feb 1, 2008 is a Friday.
//    Mar 1, 2008 is a Saturday.
//    Apr 1, 2008 is a Tuesday.
//    May 1, 2008 is a Thursday.
//    Jun 1, 2008 is a Sunday.
//    Jul 1, 2008 is a Tuesday.
//    Aug 1, 2008 is a Friday.
//    Sep 1, 2008 is a Monday.
//    Oct 1, 2008 is a Wednesday.
//    Nov 1, 2008 is a Saturday.
//    Dec 1, 2008 is a Monday.

let mutable startOfMonth = DateTimeOffset(2008, 1, 1, 0, 0, 0, DateTimeOffset.Now.Offset)
let year = startOfMonth.Year

while startOfMonth.Year = year do
    printfn $"""{startOfMonth.ToString "MMM d, yyyy"} is a {startOfMonth.DayOfWeek}."""
    startOfMonth <- startOfMonth.AddMonths 1

// This example writes the following output to the console:
//    Jan 1, 2008 is a Tuesday.
//    Feb 1, 2008 is a Friday.
//    Mar 1, 2008 is a Saturday.
//    Apr 1, 2008 is a Tuesday.
//    May 1, 2008 is a Thursday.
//    Jun 1, 2008 is a Sunday.
//    Jul 1, 2008 is a Tuesday.
//    Aug 1, 2008 is a Friday.
//    Sep 1, 2008 is a Monday.
//    Oct 1, 2008 is a Wednesday.
//    Nov 1, 2008 is a Saturday.
//    Dec 1, 2008 is a Monday.

Dim startOfMonth As New DateTimeOffset(#1/1/2008#, _
                                      DateTimeOffset.Now.Offset)
Dim year As Integer = startOfMonth.Year
Do While startOfMonth.Year = year
   Console.WriteLine("{0:MMM d, yyyy} is a {1}.", _
                     startOfMonth, startOfMonth.DayOfWeek)
   startOfMonth = startOfMonth.AddMonths(1)                   
Loop      
' This example writes the following output to the console:
'    Jan 1, 2008 is a Tuesday.
'    Feb 1, 2008 is a Friday.
'    Mar 1, 2008 is a Saturday.
'    Apr 1, 2008 is a Tuesday.
'    May 1, 2008 is a Thursday.
'    Jun 1, 2008 is a Sunday.
'    Jul 1, 2008 is a Tuesday.
'    Aug 1, 2008 is a Friday.
'    Sep 1, 2008 is a Monday.
'    Oct 1, 2008 is a Wednesday.
'    Nov 1, 2008 is a Saturday.
'    Dec 1, 2008 is a Monday.

설명

열거형에 있는 DayOfWeek 상수의 값 범위는 DayOfWeek.Sunday 다음과 같습니다 DayOfWeek.Saturday. 정수로 캐스팅하는 경우 해당 값의 범위는 0(표시 DayOfWeek.Sunday)에서 6(표시 DayOfWeek.Saturday)입니다.

"D" 형식 지정자 또는 "dddd" 사용자 지정 형식 지정자를 사용하여 특정 날짜의 평일 이름을 표시할 수도 있습니다. 예를 들면 다음과 같습니다.

DateTimeOffset displayDate = new DateTimeOffset(2008, 1, 1, 13, 18, 00,
                                                DateTimeOffset.Now.Offset);
Console.WriteLine("{0:D}", displayDate);  // Output: Tuesday, January 01, 2008
Console.WriteLine("{0:d} is a {0:dddd}.",
                  displayDate);           // Output: 1/1/2008 is a Tuesday.

let displayDate = DateTimeOffset(2008, 1, 1, 13, 18, 00, DateTimeOffset.Now.Offset)
printfn $"{displayDate:D}"                          // Output: Tuesday, January 01, 2008
printfn $"{displayDate:d} is a {displayDate:dddd}." // Output: 1/1/2008 is a Tuesday.

Dim displayDate As New DateTimeOffset(#1/1/2008 1:18PM#, _
                                      DateTimeOffset.Now.Offset)
Console.WriteLine("{0:D}", displayDate)    ' Output: Tuesday, January 01, 2008                     
Console.WriteLine("{0:d} is a {0:dddd}.", _
                  displayDate)             ' Output: 1/1/2008 is a Tuesday.

이 속성에서 반환되는 열거형 멤버의 메서드를 DayOfWeek 호출 ToString 하여 반환되는 문자열은 지역화되지 않습니다. 현재 문화권 또는 특정 문화권의 평일 이름을 포함하는 문자열을 추출하려면 "dddd" 사용자 지정 형식 지정자를 사용하여 메서드를 호출 ToString 합니다. 예를 들어 다음 코드는 문화권을 사용하는 fr-fr 날짜의 평일 이름을 표시합니다.

DateTimeOffset thisDate = new DateTimeOffset(2007, 6, 1, 6, 15, 0,
                                             DateTimeOffset.Now.Offset);
string weekdayName = thisDate.ToString("dddd",
                                       new CultureInfo("fr-fr"));
Console.WriteLine(weekdayName);                  // Displays vendredi

let thisDate = DateTimeOffset(2007, 6, 1, 6, 15, 0, DateTimeOffset.Now.Offset)
let weekdayName = thisDate.ToString("dddd", CultureInfo "fr-fr")
printfn $"{weekdayName}"                  // Displays vendredi

Dim thisDate As New DateTimeOffset(#6/1/2007 6:15AM#, _
                                      DateTimeOffset.Now.Offset)
Dim weekdayName As String = thisDate.ToString("dddd", _
                            New CultureInfo("fr-fr")) 
Console.WriteLine(weekdayName)                        ' Displays vendredi