Resolved How to serialize specific fields that are inside an array of classes?

If I have a script like that

Code (CSharp):

1. public enum VariableToShow { First, Second, Third };
2.  
3.     public class TestSerialization : MonoBehaviour
4.     {
5.         public B[] ExampleField;
6.     }
7.  
8.     [Serializable]
9.     public class A
10.     {
11.         public B[] BInstances;
12.     }
13.  
14.     [Serializable]
15.     public class B
16.     {
17.         public VariableToShow ShowVariable;
18.  
19.         public int FirstVariable;
20.         public int SecondVariable;
21.         public int ThirdVariable;
22.     }

And I need to only show the field in class B that is being selected by ShowVariable (if ShowVariable == First, then show FirstVariable, ShowVariable == Second, then show SecondVariable, etc), how can I do that?
I know that I can use SerializedProperty and serializedObject in custom editor, but I can only do it if instead of an array of B there are just variables inside the MonoBehaviour, I would do it like that

Code (CSharp):

1. public enum VariableToShow { First, Second, Third };
2.  
3.     public class TestSerialization : MonoBehaviour
4.     {
5.         public VariableToShow ShowVariable;
6.  
7.         public int FirstVariable;
8.         public int SecondVariable;
9.         public int ThirdVariable;
10.     }

And inside editor for that script:

Code (CSharp):

1. public override void OnInspectorGUI()
2.         {
3.             serializedObject.Update();
4.  
5.             SerializedProperty iterator = serializedObject.GetIterator();
6.  
7.             List<string> includes = new List<string>() { "ShowVariable" };
8.             bool enterChildren = true;
9.             while (iterator.NextVisible(enterChildren))
10.             {
11.                 enterChildren = false;
12.  
13.                 if (!includes.Contains(iterator.propertyPath))
14.                     continue;
15.  
16.                 if (iterator.propertyPath == "ShowVariable")
17.                 {
18.                     VariableToShow showVariable = iterator.GetEnumValue<VariableToShow>();
19.  
20.                     switch (showVariable)
21.                     {
22.                         case VariableToShow.First:
23.                             includes.Add("FirstVariable");
24.                             break;
25.                         case VariableToShow.Second:
26.                             includes.Add("SecondVariable");
27.                             break;
28.                         case VariableToShow.Third:
29.                             includes.Add("ThirdVariable");
30.                             break;
31.                     }
32.                 }
33.  
34.                 EditorGUILayout.PropertyField(iterator, true);
35.             }
36.  
37.             serializedObject.ApplyModifiedProperties();
38.         }

Can I do something similar for nested fields in array of classes? I tried to use iterator.NextVisible and putting true in there, but it just printed them out weird even when I used EditorGUILayout.FoldOut and EditorGUI.indentLevel. Would really be glad if someone helped me with this!

Don't mind the public fields, only using it rn to show an example

 

You can create a custom PropertyDrawer for class B, instead of a custom editor for the classes that contain instances of B. Then, everywhere that you have an instance of B serialized, including in an array of B's, it will display how you script it to display.

 

Yes, that did exactly what I wanted, thanks a lot!