How to solve assembly ID error when serializing enum in C#?

Question

I am trying to serialize my own enum with the binaryformatter, but i keep getting an error that says that there is no assembly id. My enum looks like this:

[Serializable]
public enum MyEnum{NONE, OPTION1, OPTION2, OPTION3};

This is my code for the serializing:

public class Binder : SerializationBinder
{
    public override Type BindToType(string assemblyName, string typeName)
    {
        return Type.GetType(typeName);
    }

    public override void BindToName(Type serializedType, out string assemblyName, out string typeName)
    {
        assemblyName = "";
        typeName = serializedType.FullName;
    }
}

public static byte[] GetBytes<T>(this T c)
{
    BinaryFormatter bf = new BinaryFormatter();
    using (MemoryStream m = new MemoryStream())
    {
        bf.Binder = new Binder();
        bf.Serialize(m, c);
        return m.ToArray();
    }
}

The full error:

Exception thrown: 'System.Runtime.Serialization.SerializationException' in mscorlib.dll An unhandled exception of type 'System.Runtime.Serialization.SerializationException' occurred in mscorlib.dll No assembly ID for object type 'program.MyEnum'.

Answer 1

Because the error states:

No assembly ID for object type 'program.MyEnum'.

The assemblyName parameter of BindToName seems suspect.

A quick search didn't turn up a lot, except this does mention:

...if you leave the assembly-name as NULL, the normal assembly name will be written into the stream, which is why we set a non-null value (you could use a zero-length string)

So I assume that setting assemblyName to null, rather than an empty string, would cause the Binding to resolve to the current (normal?) assembly.