DateTimeFormatInfo.YearMonthPattern Property

Gets or sets the custom date and time format string for a year and month value, which is associated with the "y" and "Y" standard format strings.

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

public string YearMonthPattern { get; set; }

Property Value

Type: System.String
The custom format string for a year and month value, which is associated with the "y" and "Y" format strings.


An attempt was made to set the property to null.


The DateTimeFormatInfo object is read-only.

See Custom Date and Time Format Strings for custom format specifiers that can be combined to form custom format strings such as "yyyy MMMM".

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

The following example displays the value of YearMonthPattern for a few cultures.

using System;
using System.Globalization;

public class Example
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
      // Displays the values of the pattern properties.
      outputBlock.Text += " CULTURE    PROPERTY VALUE" + "\n";
      PrintPattern(outputBlock, "en-US");
      PrintPattern(outputBlock, "ar-EG");
      PrintPattern(outputBlock, "fr-FR");

   public static void PrintPattern(System.Windows.Controls.TextBlock outputBlock, String myCulture)
      DateTimeFormatInfo myDTFI = new CultureInfo(myCulture).DateTimeFormat;
      outputBlock.Text += String.Format("  {0}     {1}", myCulture, myDTFI.YearMonthPattern) + "\n";
The example displays the following output:
     en-US     MMMM, yyyy
     ar-EG     MMMM, yyyy
     fr-FR     MMMM yyyy


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Community Additions