HijriCalendar.IsLeapMonth Method (Int32, Int32, Int32)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Determines whether the specified month in the specified year and era is a leap month.
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 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.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | era is outside the range supported by this calendar. -or- year is outside the range supported by this calendar. -or- month is outside the range supported by this calendar. |
In every 30-year cycle that ends with a year that is evenly divisible by 30, the 2nd, 5th, 7th, 10th, 13th, 16th, 18th, 21st, 24th, 26th, and 29th years are leap years. A common year has 354 days and a leap year has 355 days.
A leap month is an entire month that occurs only in a leap year. The Hijri calendar does not have any leap months.
The following code example calls IsLeapMonth for all the months in five years in the current era.
Imports System.Globalization Public Class Example Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock) ' Creates and initializes a HijriCalendar. Dim myCal As New HijriCalendar() ' Checks all the months in five years in the current era. Dim iMonthsInYear As Integer Dim y As Integer For y = 1421 To 1425 outputBlock.Text += String.Format("{0}:" + ControlChars.Tab, y) iMonthsInYear = myCal.GetMonthsInYear(y, HijriCalendar.CurrentEra) Dim m As Integer For m = 1 To iMonthsInYear outputBlock.Text += String.Format(ControlChars.Tab + "{0}", myCal.IsLeapMonth(y, m, HijriCalendar.CurrentEra)) Next m outputBlock.Text &= vbCrLf Next y End Sub End Class 'This code produces the following output. ' 1421: False False False False False False False False False False False False ' 1422: False False False False False False False False False False False False ' 1423: False False False False False False False False False False False False ' 1424: False False False False False False False False False False False False ' 1425: False False False False False False False False False False False False