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DateTimeFormatInfo.MonthGenitiveNames Property

Gets or sets a string array of month names associated with the current DateTimeFormatInfo object.

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

'Declaration
Public Property MonthGenitiveNames As String()

Property Value

Type: System.String()
A string array of month names.

ExceptionCondition
ArgumentException

In a set operation, the array is multidimensional or has a length that is not exactly 13.

ArgumentNullException

In a set operation, the array or one of its elements is Nothing.

InvalidOperationException

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

In some languages, a month name that is part of a date appears in the genitive case. For example, a date in the Russian (Russia) or "ru-RU", culture consists of the day number and the genitive month name, such as 1 Января.

When this property is set, the array must be one-dimensional and must have exactly 13 elements. Calendar objects accommodate calendars with 13 months. The first element (the element at index zero) represents the first month of the year defined by the Calendar property.If you set the MonthGenitiveNames property, you must also set the MonthNames property.

The following example demonstrates several methods and properties that specify date and time format patterns, native calendar name, and full and abbreviated month and day names.


' This code example demonstrates the DateTimeFormatInfo  
' MonthGenitiveNames, AbbreviatedMonthGenitiveNames,  
' ShortestDayNames, and NativeCalendarName properties, and 
' the GetShortestDayName() and SetAllDateTimePatterns() methods. 

Imports System
Imports System.Globalization

Class Sample
    Public Shared Sub Main() 
        Dim myDateTimePatterns() As String = {"MM/dd/yy", "MM/dd/yyyy"}
        Dim name As String = "" 

        ' Get the en-US culture. 
        Dim ci As New CultureInfo("en-US")
        ' Get the DateTimeFormatInfo for the en-US culture. 
        Dim dtfi As DateTimeFormatInfo = ci.DateTimeFormat

        ' Display the effective culture.
        Console.WriteLine("This code example uses the {0} culture.", ci.Name)

        ' Display the native calendar name.    
        Console.WriteLine(vbCrLf & "NativeCalendarName...")
        Console.WriteLine("""{0}""", dtfi.NativeCalendarName)

        ' Display month genitive names.
        Console.WriteLine(vbCrLf & "MonthGenitiveNames...")
        For Each name In dtfi.MonthGenitiveNames
            Console.WriteLine("""{0}""", name)
        Next name

        ' Display abbreviated month genitive names.
        Console.WriteLine(vbCrLf & "AbbreviatedMonthGenitiveNames...")
        For Each name In dtfi.AbbreviatedMonthGenitiveNames
            Console.WriteLine("""{0}""", name)
        Next name

        ' Display shortest day names.
        Console.WriteLine(vbCrLf & "ShortestDayNames...")
        For Each name In dtfi.ShortestDayNames
            Console.WriteLine("""{0}""", name)
        Next name

        ' Display shortest day name for a particular day of the week.
        Console.WriteLine(vbCrLf & "GetShortestDayName(DayOfWeek.Sunday)...")
        Console.WriteLine("""{0}""", dtfi.GetShortestDayName(DayOfWeek.Sunday))

        ' Display the initial DateTime format patterns for the 'd' format specifier.
        Console.WriteLine(vbCrLf & "Initial DateTime format patterns for " & _
                          "the 'd' format specifier...")
        For Each name In dtfi.GetAllDateTimePatterns("d"c)
            Console.WriteLine("""{0}""", name)
        Next name

        ' Change the initial DateTime format patterns for the 'd' DateTime format specifier.
        Console.WriteLine(vbCrLf & "Change the initial DateTime format patterns for the " & _
                          vbCrLf & "'d' format specifier to my format patterns...")
        dtfi.SetAllDateTimePatterns(myDateTimePatterns, "d"c)

        ' Display the new DateTime format patterns for the 'd' format specifier.
        Console.WriteLine(vbCrLf & _
                          "New DateTime format patterns for the 'd' format specifier...")
        For Each name In dtfi.GetAllDateTimePatterns("d"c)
            Console.WriteLine("""{0}""", name)
        Next name

    End Sub 'Main
End Class 'Sample

'This code example produces the following results: 

'This code example uses the en-US culture. 

'NativeCalendarName... 
'"Gregorian Calendar" 

'MonthGenitiveNames... 
'"January" 
'"February" 
'"March" 
'"April" 
'"May" 
'"June" 
'"July" 
'"August" 
'"September" 
'"October" 
'"November" 
'"December" 
'"" 

'AbbreviatedMonthGenitiveNames... 
'"Jan" 
'"Feb" 
'"Mar" 
'"Apr" 
'"May" 
'"Jun" 
'"Jul" 
'"Aug" 
'"Sep" 
'"Oct" 
'"Nov" 
'"Dec" 
'"" 

'ShortestDayNames... 
'"Su" 
'"Mo" 
'"Tu" 
'"We" 
'"Th" 
'"Fr" 
'"Sa" 

'GetShortestDayName(DayOfWeek.Sunday)... 
'"Su" 

'Initial DateTime format patterns for the 'd' format specifier... 
'"M/d/yyyy" 
'"M/d/yy" 
'"MM/dd/yy" 
'"MM/dd/yyyy" 
'"yy/MM/dd" 
'"yyyy-MM-dd" 
'"dd-MMM-yy" 

'Change the initial DateTime format patterns for the 
''d' format specifier to my format patterns... 

'New DateTime format patterns for the 'd' format specifier... 
'"MM/dd/yy" 
'"MM/dd/yyyy" 
'

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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