GregorianCalendar.GetDaysInMonth Method (Int32, Int32, Int32)

 
System_CAPS_noteNote

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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 Overrides Function GetDaysInMonth (
	year As Integer,
	month As Integer,
	era As Integer
) As Integer

Parameters

year
Type: System.Int32

An integer that represents the year.

month
Type: System.Int32

An integer from 1 to 12 that represents the month.

era
Type: System.Int32

An integer that represents the era.

Return Value

Type: System.Int32

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

Exception Condition
ArgumentOutOfRangeException

era is outside the range supported by the calendar.

-or-

year is outside the range supported by the calendar.

-or-

month 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.

Imports System
Imports System.Globalization
Imports Microsoft.VisualBasic

Public Class SamplesGregorianCalendar   

   Public Shared Sub Main()

      ' Creates and initializes a GregorianCalendar.
      Dim myCal As New GregorianCalendar()

      ' Displays the header.
      Console.Write("YEAR" + ControlChars.Tab)
      Dim y As Integer
      For y = 2001 To 2005
         Console.Write(ControlChars.Tab + "{0}", y)
      Next y
      Console.WriteLine()

      ' Displays the value of the CurrentEra property.
      Console.Write("CurrentEra:")
      For y = 2001 To 2005
         Console.Write(ControlChars.Tab + "{0}", myCal.GetDaysInMonth(y, 2, GregorianCalendar.CurrentEra))
      Next y
      Console.WriteLine()

      ' Displays the values in the Eras property.
      Dim i As Integer
      For i = 0 To myCal.Eras.Length - 1
         Console.Write("Era {0}:" + ControlChars.Tab, myCal.Eras(i))
         For y = 2001 To 2005
            Console.Write(ControlChars.Tab + "{0}", myCal.GetDaysInMonth(y, 2, myCal.Eras(i)))
         Next y
         Console.WriteLine()
      Next i

   End Sub 'Main 

End Class '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


Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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