Calendar.GetDaysInMonth Method (Int32, Int32, Int32)

July 28, 2014

When overridden in a derived class, returns the number of days in the specified month, year, and era.

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

'Declaration
Public MustOverride 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
A positive integer 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.

ExceptionCondition
ArgumentOutOfRangeException

year is outside the range supported by the calendar.

-or-

month is outside the range supported by the calendar.

-or-

era is outside the range supported by the calendar.

For example, in GregorianCalendar, GetDaysInMonth for February returns 28 in a common year or 29 in a leap year.

Notes to Inheritors

The derived class must support CurrentEra when it is passed as the era parameter. One way to support CurrentEra is by replacing it with the value stored in Eras[0], which is the value for the current era of the calendar.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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