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FirstDayOfWeek Enumeration

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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

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

Syntax

'Declaration
Public Enumeration FirstDayOfWeek
public enum FirstDayOfWeek

Members

Member name Description
System The first day of the week as specified in your system settings This member is equivalent to the Visual Basic constant vbUseSystemDayOfWeek.
Sunday Sunday (default) This member is equivalent to the Visual Basic constant vbSunday.
Monday Monday This member is equivalent to the Visual Basic constant vbMonday.
Tuesday Tuesday This member is equivalent to the Visual Basic constant vbTuesday.
Wednesday Wednesday This member is equivalent to the Visual Basic constant vbWednesday.
Thursday Thursday This member is equivalent to the Visual Basic constant vbThursday.
Friday Friday This member is equivalent to the Visual Basic constant vbFriday.
Saturday Saturday This member is equivalent to the Visual Basic constant vbSaturday.

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 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).

Version Information

Silverlight

Supported in: 5, 4, 3

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.