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PersianCalendar.IsLeapMonth Method (Int32, Int32, Int32)

Determines whether the specified month in the specified year and era is a leap month.

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

'Declaration
Public Overrides Function IsLeapMonth ( _
	year As Integer, _
	month As Integer, _
	era As Integer _
) As Boolean

Parameters

year
Type: System.Int32

An integer from 1 through 9378 that represents the year.

month
Type: System.Int32

An integer that represents the month and ranges from 1 through 12 if year is not 9378, or 1 through 10 if year is 9378.

era
Type: System.Int32

An integer from 0 through 1 that represents the era.

Return Value

Type: System.Boolean
Always returns false because the PersianCalendar class does not support the notion of a leap month.

ExceptionCondition
ArgumentOutOfRangeException

year, month, or era is outside the range supported by this calendar.

The following code example demonstrates the use of the IsLeapMonth method.

Imports System.Globalization

Class Sample
    Public Shared Sub Main()
        '-------------------------------------------------------------------------------- 
        ' Get today's date. 
        '-------------------------------------------------------------------------------- 
        Dim jc As New PersianCalendar()
        Dim thisDate As Date = Date.Now

        '-------------------------------------------------------------------------------- 
        ' Properties 
        '--------------------------------------------------------------------------------
        Console.WriteLine(vbCrLf & _
                          "........... Selected Properties ....................." & vbCrLf)
        Console.Write("Eras:")
        Dim era As Integer 
        For Each era In jc.Eras
            Console.WriteLine(" era = {0}", era)
        Next era
        '--------------------------------------------------------------------------------
        Console.WriteLine("TwoDigitYearMax = {0}", jc.TwoDigitYearMax)
        '-------------------------------------------------------------------------------- 
        ' Methods 
        '--------------------------------------------------------------------------------
        Console.WriteLine(vbCrLf & _
                          "............ Selected Methods ......................." & vbCrLf)

        '--------------------------------------------------------------------------------
        Console.WriteLine("GetDayOfYear: day = {0}", jc.GetDayOfYear(thisDate))
        '--------------------------------------------------------------------------------

        Console.WriteLine("GetDaysInMonth: days = {0}", _
                           jc.GetDaysInMonth(thisDate.Year, _
                                             thisDate.Month, _
                                             PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("GetDaysInYear: days = {0}", _
                          jc.GetDaysInYear(thisDate.Year, PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("GetLeapMonth: leap month (if any) = {0}", _
                           jc.GetLeapMonth(thisDate.Year, PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("GetMonthsInYear: months in a year = {0}", _
                           jc.GetMonthsInYear(thisDate.Year, PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("IsLeapDay: This is a leap day = {0}", _
                           jc.IsLeapDay(thisDate.Year, _
                                        thisDate.Month, thisDate.Day, _
                                        PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("IsLeapMonth: This is a leap month = {0}", _
                           jc.IsLeapMonth(thisDate.Year, _
                                          thisDate.Month, _
                                          PersianCalendar.PersianEra))
        '--------------------------------------------------------------------------------
        Console.WriteLine("IsLeapYear: 1370 is a leap year = {0}", _
                           jc.IsLeapYear(1370, PersianCalendar.PersianEra))
        '-------------------------------------------------------------------------------- 

        ' Get the 4-digit year for a year whose last two digits are 99. The 4-digit year  
        ' depends on the current value of the TwoDigitYearMax property.

        Console.WriteLine("ToFourDigitYear:")
        Console.WriteLine("  If TwoDigitYearMax = {0}, ToFourDigitYear(99) = {1}", _
                          jc.TwoDigitYearMax, jc.ToFourDigitYear(99))
        jc.TwoDigitYearMax = thisDate.Year
        Console.WriteLine("  If TwoDigitYearMax = {0}, ToFourDigitYear(99) = {1}", _
                          jc.TwoDigitYearMax, jc.ToFourDigitYear(99))
    End Sub 
End Class  
' The example displays output like the following:  
'       ........... Seleted Properties ..................... 
'        
'       Eras: era = 1 
'        
'       TwoDigitYearMax = 99 
'        
'       ............ Selected Methods ....................... 
'        
'       GetDayOfYear: day = 1 
'       GetDaysInMonth: days = 31 
'       GetDaysInYear: days = 365 
'       GetLeapMonth: leap month (if any) = 0 
'       GetMonthsInYear: months in a year = 12 
'       IsLeapDay: This is a leap day = False 
'       IsLeapMonth: This is a leap month = False 
'       IsLeapYear: 1370 is a leap year = True 
'       ToFourDigitYear: 
'         If TwoDigitYearMax = 99, ToFourDigitYear(99) = 99 
'         If TwoDigitYearMax = 2012, ToFourDigitYear(99) = 1999

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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