Generic MonoBehaviour with nested class serialization issue

Questions & Answers
1

This serializes:

public class GenericMB<T, V> : MonoBehaviour
{    
	public T  t;  
	public V  v;
}
  
public class ThisSerializes : GenericMB<int, string>
{   
}

i.e. if I have a GO with ThisSerializes attached to it, ‘t’ and ‘v’ will show up in the inspector.

This works well too:

public class KvpMB : MonoBehaviour
{
	public KVP kvp = new KVP();

	[Serializable]
	public class KVP : GenericKeyValue<int, string>
	{
	}
}

public class GenericKeyValue< TKey, TValue >
{
	public TKey key;
	public TValue value;
}

public class ThisSerializesToo : KvpMB
{
}

Howover; not the case here:

public class GenericMB<T, V> : MonoBehaviour
{
	public KVP kvp = new KVP();

	[Serializable]
	public class KVP : GenericKeyValue<T, V>
	{
	}
}

public class GenericKeyValue< TKey, TValue >
{
	public TKey key;
	public TValue value;
}

public class ThisDoesNotSerialize : GenericMB<int, string>
{
}

Attaching ThisDoesNotSerialize to a GO ‘kvp’ doesn’t serialize thus not visible in the inspector.

I don’t get why; I’m not attaching a generic MonoBehaviour; It’s just that I’m inheriting from one. It serialized in the first case, why doesn’t it serialize in this one as well?

Any ideas?

Thanks.

2

my guess is because your are not serializing the types only the generics so unity doesn’t know what to show

     [Serializable]
     public class KVP : GenericKeyValue<T, V>
     {
     }