MonthNames Property
This documentation is archived and is not being maintained.

DateTimeFormatInfo.MonthNames Property

Gets or sets a one-dimensional array of type String containing the culture-specific full names of the months.

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

Public Property MonthNames As String()
Dim instance As DateTimeFormatInfo
Dim value As String()

value = instance.MonthNames

instance.MonthNames = value
/** @property */
public String[] get_MonthNames ()

/** @property */
public void set_MonthNames (String[] value)

public function get MonthNames () : String[]

public function set MonthNames (value : String[])

Not applicable.

Property Value

A one-dimensional array of type String containing the culture-specific full names of the months. In a 12-month calendar, the 13th element of the array is an empty string. The array for InvariantInfo contains "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December", and "".

Exception typeCondition


The property is being set to a null reference (Nothing in Visual Basic).


The property is being set to an array that is multidimensional or that has a length that is not exactly 13.


The property is being set and the DateTimeFormatInfo is read-only.

When this property is set, the array must be one-dimensional and must have exactly 13 elements. Calendar objects accommodate calendars with 13 months.

If the custom pattern includes the format pattern "MMMM", DateTime.ToString displays the value of MonthNames in place of the "MMMM" in the format pattern.

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

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0
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