Question

I have two Enumerators and a method that takes an enumerator. They are called ABC and DEF and the method is called TestMethod(Enum myEnum). Code is below:

public enum ABC
{
    Zero,
    One,
    Two
};

public enum DEF
{
    Zero,
    One,
    Two
};

public void TestEnum(Enum myEnum)
{
    ...
}

The function TestEnum takes any enumerator. How can I test which one of the two does the passed in parameter belong to? I could blindly start testing it out with try / catch casting but sheesh that’s ugly. Any cleaner ways of doing this? Thank you in advance for any help.

Answer 1

How can I test which one of the two does the passed in parameter belong to?

You can just call GetType:

Type type = myEnum.GetType();

It’s not clear what you want to do with it after that, mind you.

Alternatively:

if (myEnum is ABC)
{
}
else if (myEnum is DEF)
{
}

EDIT: If you’re able to change the method signature and if your callers will know the type, then as per Jeppe’s comment, you could use:

public void TestEnum<T>(T value) where T : struct
{
    // Use typeof(T) here
}

You can’t constrain T to be an enum type with normal C#… although there are hacky ways of writing code with such constraints applied via post-processing.