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FirstDayOfWeek Enumeration

Indicates the first day of the week to use when calling date-related functions.

Namespace:  Microsoft.VisualBasic
Assembly:  Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

public enum FirstDayOfWeek

Member nameDescription
Supported by the .NET Compact FrameworkSystemThe first day of the week as specified in your system settings This member is equivalent to the Visual Basic constant vbUseSystemDayOfWeek.
Supported by the .NET Compact FrameworkSundaySunday (default) This member is equivalent to the Visual Basic constant vbSunday.
Supported by the .NET Compact FrameworkMondayMonday This member is equivalent to the Visual Basic constant vbMonday.
Supported by the .NET Compact FrameworkTuesdayTuesday This member is equivalent to the Visual Basic constant vbTuesday.
Supported by the .NET Compact FrameworkWednesdayWednesday This member is equivalent to the Visual Basic constant vbWednesday.
Supported by the .NET Compact FrameworkThursdayThursday This member is equivalent to the Visual Basic constant vbThursday.
Supported by the .NET Compact FrameworkFridayFriday This member is equivalent to the Visual Basic constant vbFriday.
Supported by the .NET Compact FrameworkSaturdaySaturday This member is equivalent to the Visual Basic constant vbSaturday.

For more detailed information, see the Visual Basic topic FirstDayOfWeek Enumeration.

When you call date-related functions, you can use the following enumeration members in your code in place of the actual values.

Some date-related functions take a DayOfWeek argument, a WeekOfYear argument, or both. The FirstDayOfWeek enumeration specifies the valid values for the DayOfWeek arguments, as well as the possible return values from the functions.

The DayOfWeek argument takes the FirstDayOfWeek enumeration members.

Date-related functions also return FirstDayOfWeek values (except System).

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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