Indicates that the day specified by your system as the first day of the week should be used when date-related functions are called.
Assembly: Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)
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 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.