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GregorianCalendar.GetDaysInMonth Method (Int32, Int32, Int32)

Returns the number of days in the specified month in the specified year in the specified era.

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

public override int GetDaysInMonth (
	int year,
	int month,
	int era
)
public int GetDaysInMonth (
	int year, 
	int month, 
	int era
)
public override function GetDaysInMonth (
	year : int, 
	month : int, 
	era : int
) : int

Parameters

year

An integer that represents the year.

month

An integer from 1 to 12 that represents the month.

era

An integer that represents the era.

Return Value

The number of days in the specified month in the specified year in the specified era.

Exception typeCondition

ArgumentOutOfRangeException

year is outside the range supported by the calendar.

-or-

month is outside the range supported by the calendar.

ArgumentException

era is outside the range supported by the calendar.

For example, this method returns 28 or 29 for February (month = 2), depending on whether year is a leap year.

The following code example calls GetDaysInMonth for the second month in each of five years in each era.

using System;
using System.Globalization;


public class SamplesGregorianCalendar  {

   public static void Main()  {

      // Creates and initializes a GregorianCalendar.
      GregorianCalendar myCal = new GregorianCalendar();

      // Displays the header.
      Console.Write( "YEAR\t" );
      for ( int y = 2001; y <= 2005; y++ )
         Console.Write( "\t{0}", y );
      Console.WriteLine();

      // Displays the value of the CurrentEra property.
      Console.Write( "CurrentEra:" );
      for ( int y = 2001; y <= 2005; y++ )
         Console.Write( "\t{0}", myCal.GetDaysInMonth( y, 2, GregorianCalendar.CurrentEra ) );
      Console.WriteLine();

      // Displays the values in the Eras property.
      for ( int i = 0; i < myCal.Eras.Length; i++ )  {
         Console.Write( "Era {0}:\t", myCal.Eras[i] );
         for ( int y = 2001; y <= 2005; y++ )
            Console.Write( "\t{0}", myCal.GetDaysInMonth( y, 2, myCal.Eras[i] ) );
         Console.WriteLine();
      }

   }

}

/*
This code produces the following output.

YEAR            2001    2002    2003    2004    2005
CurrentEra:     28      28      28      29      28
Era 1:          28      28      28      29      28

*/

import System.* ;
import System.Globalization.* ;

public class SamplesGregorianCalendar
{
    public static void main(String[] args)
    {
        // Creates and initializes a GregorianCalendar.
        GregorianCalendar myCal =  new GregorianCalendar();

        // Displays the header.
        Console.Write("YEAR\t");
        for(int y=2001; y <= 2005; y++) {
            Console.Write("\t{0}", System.Convert.ToString(y));
        } 
        Console.WriteLine();

        // Displays the value of the CurrentEra property.
        Console.Write("CurrentEra:");
        for(int y=2001; y <= 2005; y++) {
            Console.Write("\t{0}",System.Convert.ToString(
                myCal.GetDaysInMonth(y, 2, GregorianCalendar.CurrentEra)));
        } 
        Console.WriteLine();

        // Displays the values in the Eras property.
        for(int i=0; i < myCal.get_Eras().length; i++) {
            Console.Write("Era {0}:\t", myCal.get_Eras().get_Item(i));
            for(int y=2001;y <= 2005;y++) {
                Console.Write("\t{0}",System.Convert.ToString(
                    myCal.GetDaysInMonth(y, 2,System.Convert.ToInt32(
                    myCal.get_Eras().get_Item(i)))));
            } 
            Console.WriteLine();
        } 
    } //main 
} //SamplesGregorianCalendar

/*
This code produces the following output.

YEAR            2001    2002    2003    2004    2005
CurrentEra:     28      28      28      29      28
Era 1:          28      28      28      29      28
*/

Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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