How can Editor Script change value in a Prefab instance ?

Questions & Answers
1

I have a prefab with a string call CAKE initialized to APPLE in one of its component. I copy an instance of the prefab as one GameObject in the Hierarchy window. Then I use an editor script to modify the value to BANANA before the game is started.

In the inspector window, the value is correctly updated but not in bold.

When I start the game, it returns old value Apple.

If I modify the value manually in the inspector window, and start the game, it returns good value BANANA.

How can I update correcty the value using EDITOR SCRIPT ?

//PREFAB
public class DecorController : MonoBehaviour
{
    public string CAKE = "APPLE";
}

//EDITOR SCRIPT 
[CustomEditor(typeof(DecorController))]
public class DecorControllerEditor : Editor
{
    SerializedProperty m_CAKE;
    void OnEnable()
    {
        m_CAKE = serializedObject.FindProperty("CAKE");
    }
    public override void OnInspectorGUI()
    {
        serializedObject.Update();
        EditorGUILayout.PropertyField(m_CAKE);
        serializedObject.ApplyModifiedProperties();
    }

    void OnSceneGUI()
    {
        DecorController myController = (DecorController)target;
        myController.CAKE = "BANANA";
    }
}
2

I find this on forums ,and after some tries it works. You have to use serialized properties.

    void OnSceneGUI()
    {
        DecorController myController = (DecorController)target;
        var newserializedObject = new SerializedObject(myController);
        newserializedObject.Update();
        SerializedProperty _featuresProperty = newserializedObject.FindProperty("CAKE"); 
        _featuresProperty.stringValue = "BANANA";
        newserializedObject.ApplyModifiedProperties();
    }