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Type.IsEnumDefined Method

Returns a value that indicates whether the specified value exists in the current enumeration type.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
'Declaration
Public Overridable Function IsEnumDefined ( _
	value As Object _
) As Boolean

Parameters

value
Type: System.Object

The value to be tested.

Return Value

Type: System.Boolean
true if the specified value is a member of the current enumeration type; otherwise, false.
ExceptionCondition
ArgumentException

The current type is not an enumeration.

ArgumentNullException

value is Nothing.

InvalidOperationException

value is of a type that cannot be the underlying type of an enumeration.

.NET Framework

Supported in: 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Windows Phone 8.1, Windows Phone 8, 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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