SerializedProperty objectReferenceValue not functioning as expected?

Questions & Answers
1

Hi,

I am having difficulty setting objectReferenceValue in an Editor, what am I doing wrong?

public class TestObj : ScriptableObject
{

}

public class TestBehaviour : MonoBehaviour
{
	public TestObj obj = ScriptableObject.CreateInstance<TestObj>();
}

[CustomEditor(typeof(TestBehaviour))]
public class TestEditor : UnityEditor.Editor
{
	public SerializedProperty testObj;

	void OnEnable()
	{
		testObj = serializedObject.FindProperty("obj");
	}

	public override void OnInspectorGUI()
	{
		serializedObject.Update();

		if (GUILayout.Button("Output"))
		{
			Debug.Log(testObj.objectReferenceValue);
		}

		if (GUILayout.Button("Set"))
		{
			testObj.objectReferenceValue = ScriptableObject.CreateInstance<TestObj>();
		} 

		serializedObject.ApplyModifiedProperties();
	}
}

Clicking “Output” the first time logs “(TestObj)”
Then clicking “Set” and “Output” then logs “Null”

Its as if the objectReference isnt being set.

NOTE: I am doing this on a prefab…

What am I doing wrong?

2

ScriptableObjects are supposed to be created through ScriptableObject.CreateInstance<>(), not with new. I think there’s even a console warning or error if you use new. Anyway, that’s probably the problem.