Quote:An enumeration (enum) is a special form of value type, which inherits from System.Enum and supplies alternate names for the values of an underlying primitive type. An enumeration type has a name, an underlying type, and a set of fields. The underlying type must be one of the built-in signed or unsigned integer types (such as Byte, Int32, or UInt64). The fields are static literal fields, each of which represents a constant. The same value can be assigned to multiple fields. When this occurs, you must mark one of the values as the primary enumeration value for purposes of reflection and string conversion.