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Enum.GetUnderlyingType Method

Returns the underlying type of the specified enumeration.

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

[<ComVisibleAttribute(true)>]
static member GetUnderlyingType : 
        enumType:Type -> Type 

Parameters

enumType
Type: System.Type
The enumeration whose underlying type will be retrieved.

Return Value

Type: System.Type
The underlying type of enumType.

ExceptionCondition
ArgumentNullException

enumType is a null reference (Nothing in Visual Basic).

ArgumentException

enumType is not an Enum.

The Enum structure enables values to be represented as named constants. The data type of the enumeration's values is known as its underlying type. For example, the underlying type of the DayOfWeek enumeration, which consists of constants that represent each day of the week (DayOfWeek.Monday, DayOfWeek.Tuesday, and so on), is Int32.

The following example calls the GetUnderlyingType method to display the underlying type of some enumeration members.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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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