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DayOfWeek Enumeration

Specifies the day of the week.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

[SerializableAttribute]
[ComVisibleAttribute(true)]
public enum DayOfWeek

Member nameDescription
Supported by the XNA FrameworkSupported by Portable Class LibrarySundayIndicates Sunday.
Supported by the XNA FrameworkSupported by Portable Class LibraryMondayIndicates Monday.
Supported by the XNA FrameworkSupported by Portable Class LibraryTuesdayIndicates Tuesday.
Supported by the XNA FrameworkSupported by Portable Class LibraryWednesdayIndicates Wednesday.
Supported by the XNA FrameworkSupported by Portable Class LibraryThursdayIndicates Thursday.
Supported by the XNA FrameworkSupported by Portable Class LibraryFridayIndicates Friday.
Supported by the XNA FrameworkSupported by Portable Class LibrarySaturdayIndicates Saturday.

The DayOfWeek enumeration represents the day of the week in calendars that have seven days per week. The value of the constants in this enumeration ranges from DayOfWeek.Sunday to DayOfWeek.Saturday. If cast to an integer, its value ranges from zero (which indicates DayOfWeek.Sunday) to six (which indicates DayOfWeek.Saturday).

This enumeration is useful when it is desirable to have a strongly typed specification of the day of the week. For example, this enumeration is the type of the property value for the DateTime.DayOfWeek property.

The members of the DayOfWeek enumeration are not localized. To return the localized name of the day of the week, call the DateTime.ToString(String) or the DateTime.ToString(String, IFormatProvider) method with either the "ddd" or "dddd" format strings. The former format string produces the abbreviated weekday name; the latter produces the full weekday name.

The following example demonstrates the DateTime.DayOfWeek property and the DayOfWeek enumeration.


// This example demonstrates the DateTime.DayOfWeek property
using System;

class Sample 
{
    public static void Main() 
    {
// Assume the current culture is en-US.
// Create a DateTime for the first of May, 2003.
    DateTime dt = new DateTime(2003, 5, 1);
    Console.WriteLine("Is Thursday the day of the week for {0:d}?: {1}", 
                       dt, dt.DayOfWeek == DayOfWeek.Thursday);
    Console.WriteLine("The day of the week for {0:d} is {1}.", dt, dt.DayOfWeek);
    }
}
/*
This example produces the following results:

Is Thursday the day of the week for 5/1/2003?: True
The day of the week for 5/1/2003 is Thursday.
*/


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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