System.Globalization Namespace DateTimeFormatInfo Class
Sets or retrieves a one-dimensional array of type String containing the culture-specific full names of the months.
[ VB ]
public Property MonthNames As String ( )
[ C# ]
public string [ ] MonthNames {get; set;}
[ C++ ]
public: __property String* get_MonthNames ( );
public: __property void set_MonthNames ( String* __gc [ ] );
[ JScript ]
function get MonthNames ( ) : String [ ];
public function set MonthNames ( String [ ] );
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 "".
If setting this property, 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.
This example shows how you can create a DateTimeFormatInfo object for a given culture, to gain access to the MonthNames property for the specified culture.
First, you need to instantiate a CultureInfo object with the specified culture name, and then retrieve the CultureInfo.DateTimeFormat property.
This returns a DateTimeFormatInfo instance specific to the given culture, which you can then use to get to any DateTimeFormatInfo method or property, such as MonthNames. 
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DateTimeFormatInfo Members DayNames AbbreviatedMonthNames GetMonthName
