Can you have multiple enum values for the same integer? [duplicate]

Question

In .NET can you have multiple enum values for the same integer?

eg.

public enum PersonGender
    {
        Unknown = 0,
        Male = 1,
        Female = 2,
        Intersex = 3,
        Indeterminate = 3,
        NonStated = 9,
        InadequatelyDescribed = 9
    }

Answer 1

In C#, this is allowed, as per the C# Language Specication, version 4. Section 1.10 Enums doesn't explicitly mention the possibility but, later on in section 14 Enums, 14.3, we see:

Multiple enum members may share the same associated value. The example

enum Color {
   Red,
   Green,
   Blue,
   Max = Blue
}

shows an enum in which two enum members - Blue and Max - have the same associated value.

Answer 2

That works fine. There is absolutely nothing wrong with the code you posted. It compiles just fine and works in code, with the caveat that

PersonGender.NonStated == PersonGender.InadequatelyDescribed