FirstWeekOfYear Enum

Definition

Namespace:

Microsoft.VisualBasic

Assembly:

Microsoft.VisualBasic.Core.dll

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

public enum class FirstWeekOfYear

public enum FirstWeekOfYear

type FirstWeekOfYear = 

Public Enum FirstWeekOfYear

Inheritance

Object

ValueType

Enum

FirstWeekOfYear

Fields

Name	Value	Description
System	0	The week specified in your system settings as the first week of the year. This member is equivalent to the Visual Basic constant vbUseSystem.
Jan1	1	The week in which January 1 occurs (default). This member is equivalent to the Visual Basic constant vbFirstJan1.
FirstFourDays	2	The first week that has at least four days in the new year. This member is equivalent to the Visual Basic constant vbFirstFourDays.
FirstFullWeek	3	The first full week of the year. This member is equivalent to the Visual Basic constant vbFirstFullWeek.

Remarks

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.

See also

• FirstDayOfWeek
• DateFormat
• DateDiff(DateInterval, DateTime, DateTime, FirstDayOfWeek, FirstWeekOfYear)
• DatePart(DateInterval, DateTime, FirstDayOfWeek, FirstWeekOfYear)
• Format(Object, String)
• Weekday(DateTime, FirstDayOfWeek)
• Constants and Enumerations
• When to Use an Enumeration
• How to: Refer to an Enumeration Member