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FirstWeekOfYear Enumeration

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

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

public enum FirstWeekOfYear

Member nameDescription
Supported by the .NET Compact FrameworkSystemThe day of the week specified in your system settings as the first day of the week This member is equivalent to the Visual Basic constant vbUseSystem.
Supported by the .NET Compact FrameworkJan1The week in which January 1 occurs (default) This member is equivalent to the Visual Basic constant vbFirstJan1.
Supported by the .NET Compact FrameworkFirstFourDaysThe first week that has at least four days in the new year This member is equivalent to the Visual Basic constant vbFirstFourDays.
Supported by the .NET Compact FrameworkFirstFullWeekThe first full week of the year This member is equivalent to the Visual Basic constant vbFirstFullWeek.

For more detailed information, see the Visual Basic topic FirstWeekOfYear 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 FirstWeekOfYear enumeration specifies the valid values for the WeekOfYear arguments, as well as the possible return values from the functions.

The WeekOfYear argument takes the FirstWeekOfYear enumeration members.

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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