Type.GetEnumUnderlyingType Method

Definition

Returns the underlying type of the current enumeration type.

public virtual Type GetEnumUnderlyingType ();

Returns

The underlying type of the current enumeration.

Exceptions

The current type is not an enumeration.

-or-

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

Remarks

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

Applies to

Product Versions
.NET Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 2.0, 2.1