UIElement Property-Drawer in IMGUI Inspector "No GUI Implemented"

UI UI Toolkit
,
1

Hi all,
So I tried to create a property drawer using CreatePropertyGUI and use it in my project. If I try to use it in an inspector driven by IMGUI I get the “No GUI Implemented” error. I’ve read already read that It’s probably because of the IMGUI/UiElement Mix. Is there any solution yet? I’ll provide my scripts and a simple example project. Please mind that for the real one I’m bound to Unity 2020.16.3.

public class BaseClass : MonoBehaviour
{
    [SerializeField] private List<Property> Properties;
}

[Serializable]
public class Property
{
    [SerializeField] private bool isOn;
    [SerializeField] private string name;
    [SerializeField] private float length;
}

[CustomEditor(typeof(BaseClass))]
public class BaseInspector : Editor
{
    public override void OnInspectorGUI()
    {
        DrawDefaultInspector();
    }
}

[CustomPropertyDrawer(typeof(Property))]
public class PropertyDrawer : UnityEditor.PropertyDrawer
{
    public override VisualElement CreatePropertyGUI(SerializedProperty property)
    {
        var container = new VisualElement();

        var isOnField = new PropertyField(property.FindPropertyRelative("isOn"));
        var nameField = new PropertyField(property.FindPropertyRelative("name"));
        var lengthField = new PropertyField(property.FindPropertyRelative("length"));
      
        container.Add(isOnField);
        container.Add(nameField);
        container.Add(lengthField);

        return container;
    }
}

7704052--965134--ScreenShot1.png
7704052–965137–IMGUI_UIElem_Mix.zip (34.6 KB)

2

the thread with all the answers: Property Drawers . Specifically this code sample should make it easy to implement.

TL;DR: Your editor/editorwindow currently needs to be UIElements for UIElements Property Drawers to work.

3

Thanks for the reply, that thread was really helpful!