UmAlQuraCalendar.IsLeapDay(Int32, Int32, Int32, Int32) Method

Reference

Definition

Namespace:: System.Globalization

Assemblies:: mscorlib.dll, System.Globalization.Calendars.dll

Assemblies:: netstandard.dll, System.Runtime.dll

Assembly:: System.Globalization.Calendars.dll

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: UmAlQuraCalendar.cs

Source:: UmAlQuraCalendar.cs

Source:: UmAlQuraCalendar.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Determines whether the specified date is a leap day.

public:
 override bool IsLeapDay(int year, int month, int day, int era);

public override bool IsLeapDay(int year, int month, int day, int era);

override this.IsLeapDay : int * int * int * int -> bool

Public Overrides Function IsLeapDay (year As Integer, month As Integer, day As Integer, era As Integer) As Boolean

Parameters

year: Int32

A year.

month: Int32

An integer from 1 through 12 that represents a month.

day: Int32

An integer from 1 through 30 that represents a day.

era: Int32

An era. Specify UmAlQuraCalendar.Eras[UmAlQuraCalendar.CurrentEra] or UmAlQuraEra.

Returns

Boolean

true if the specified day is a leap day; otherwise, false. The return value is always false because the UmAlQuraCalendar class does not support leap days.

Exceptions

ArgumentOutOfRangeException

year, month, day, or era is outside the range supported by the UmAlQuraCalendar class.

Examples

The following example calls the IsLeapDay method for the last day of the second month (February) for five years in each of the eras.

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Creates and initializes a HijriCalendar.
   HijriCalendar^ myCal = gcnew HijriCalendar;
   
   // Creates a holder for the last day of the second month (February).
   int iLastDay;
   
   // Displays the header.
   Console::Write( "YEAR\t" );
   for ( int y = 1421; y <= 1425; y++ )
      Console::Write( "\t {0}", y );
   Console::WriteLine();
   
   // Checks five years in the current era.
   Console::Write( "CurrentEra:" );
   for ( int y = 1421; y <= 1425; y++ )
   {
      iLastDay = myCal->GetDaysInMonth( y, 2, HijriCalendar::CurrentEra );
      Console::Write( "\t {0}", myCal->IsLeapDay( y, 2, iLastDay, HijriCalendar::CurrentEra ) );

   }
   Console::WriteLine();
   
   // Checks five years in each of the eras.
   for ( int i = 0; i < myCal->Eras->Length; i++ )
   {
      Console::Write( "Era {0}:\t", myCal->Eras[ i ] );
      for ( int y = 1421; y <= 1425; y++ )
      {
         iLastDay = myCal->GetDaysInMonth( y, 2, myCal->Eras[ i ] );
         Console::Write( "\t {0}", myCal->IsLeapDay( y, 2, iLastDay, myCal->Eras[ i ] ) );

      }
      Console::WriteLine();

   }
}

/*
This code produces the following output.

YEAR            1421    1422    1423    1424    1425
CurrentEra:     False   False   False   False   False
Era 1:          False   False   False   False   False

*/

using System;
using System.Globalization;

public class SamplesHijriCalendar  {

   public static void Main()  {

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

      // Creates a holder for the last day of the second month (February).
      int iLastDay;

      // Displays the header.
      Console.Write( "YEAR\t" );
      for ( int y = 1421; y <= 1425; y++ )
         Console.Write( "\t{0}", y );
      Console.WriteLine();

      // Checks five years in the current era.
      Console.Write( "CurrentEra:" );
      for ( int y = 1421; y <= 1425; y++ )  {
         iLastDay = myCal.GetDaysInMonth( y, 2, HijriCalendar.CurrentEra );
         Console.Write( "\t{0}", myCal.IsLeapDay( y, 2, iLastDay, HijriCalendar.CurrentEra ) );
      }
      Console.WriteLine();

      // Checks five years in each of the eras.
      for ( int i = 0; i < myCal.Eras.Length; i++ )  {
         Console.Write( "Era {0}:\t", myCal.Eras[i] );
         for ( int y = 1421; y <= 1425; y++ )  {
            iLastDay = myCal.GetDaysInMonth( y, 2, myCal.Eras[i] );
            Console.Write( "\t{0}", myCal.IsLeapDay( y, 2, iLastDay, myCal.Eras[i] ) );
         }
         Console.WriteLine();
      }
   }
}

/*
This code produces the following output.

YEAR            1421    1422    1423    1424    1425
CurrentEra:     False   False   False   False   False
Era 1:          False   False   False   False   False

*/

Imports System.Globalization

Public Class SamplesHijriCalendar   
   
   Public Shared Sub Main()

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

      ' Creates a holder for the last day of the second month (February).
      Dim iLastDay As Integer

      ' Displays the header.
      Console.Write("YEAR" + ControlChars.Tab)
      Dim y As Integer
      For y = 1421 To 1425
         Console.Write(ControlChars.Tab + "{0}", y)
      Next y
      Console.WriteLine()

      ' Checks five years in the current era.
      Console.Write("CurrentEra:")
      For y = 1421 To 1425
         iLastDay = myCal.GetDaysInMonth(y, 2, HijriCalendar.CurrentEra)
         Console.Write(ControlChars.Tab + "{0}", myCal.IsLeapDay(y, 2, iLastDay, HijriCalendar.CurrentEra))
      Next y
      Console.WriteLine()

      ' Checks five years in each of the eras.
      Dim i As Integer
      For i = 0 To myCal.Eras.Length - 1
         Console.Write("Era {0}:" + ControlChars.Tab, myCal.Eras(i))
         For y = 1421 To 1425
            iLastDay = myCal.GetDaysInMonth(y, 2, myCal.Eras(i))
            Console.Write(ControlChars.Tab + "{0}", myCal.IsLeapDay(y, 2, iLastDay, myCal.Eras(i)))
         Next y
         Console.WriteLine()
      Next i

   End Sub

End Class


'This code produces the following output.
'
'YEAR            1421    1422    1423    1424    1425
'CurrentEra:     False   False   False   False   False
'Era 1:          False   False   False   False   False

Remarks

A leap day is a day that occurs only in a leap year.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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