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Type.GetEnumUnderlyingType Method

Returns the underlying type of the current enumeration type.

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

abstract GetEnumUnderlyingType : unit -> Type 
override GetEnumUnderlyingType : unit -> Type 

Return Value

Type: System.Type
The underlying type of the current enumeration.

ExceptionCondition
ArgumentException

The current type is not an enumeration.

-or-

The enumeration type is not valid, because it contains more than one instance field.

By default, the underlying type of an enumeration in C# and Visual Basic is Int32. Other integer types can be specified.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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