CalendarWeekRule Property

DateTimeFormatInfo.CalendarWeekRule Property


Gets or sets a value that specifies which rule is used to determine the first calendar week of the year.

Namespace:   System.Globalization
Assembly:  mscorlib (in mscorlib.dll)

public CalendarWeekRule CalendarWeekRule { get; set; }

Property Value

Type: System.Globalization.CalendarWeekRule

A value that determines the first calendar week of the year. The default for InvariantInfo is CalendarWeekRule.FirstDay.

Exception Condition

The property is being set to a value that is not a valid CalendarWeekRule value.


In a set operation, the current DateTimeFormatInfo object is read-only.

This property is affected if the value of the Calendar property changes.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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