An Enum-Declaration May Optionally Include A Sequence of Enum Modifiers:
ENUM-Modifiers:
ENUM-Modifier
ENUM-Modifiers Enum-Modifier
C # language specification
294
ENUM-Modifier:
New
public
protected
Internal
Private
IT is a compile-time error for the Same Modifier To Appear Multiple Times in
An Enum Declaration.
The Modifiers of An Enum Declaration Have The Same Meaning As Those of A
Class Declaration (§ 17.1.1).
However, The Abstract and Sealed Modifiers Are Not Permitted in An ENUM
Declaration. enums cannot be
Abstract and do not permit DeriVation.
