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Calendar.IsLeapYear Method (Int32, Int32)

When overridden in a derived class, determines whether the specified year in the specified era is a leap year.

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

public abstract bool IsLeapYear(
	int year,
	int era
)

Parameters

year
Type: System.Int32

An integer that represents the year.

era
Type: System.Int32

An integer that represents the era.

Return Value

Type: System.Boolean
true if the specified year is a leap year; otherwise, false.

ExceptionCondition
ArgumentOutOfRangeException

year is outside the range supported by the calendar.

-or-

era is outside the range supported by the calendar.

To make up for the difference between the calendar year and the actual time that the earth rotates around the sun or the actual time that the moon rotates around the earth, a leap year has a different number of days from a standard calendar year. Each Calendar implementation defines leap years differently.

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.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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