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Won't Fix
Votes
0
Found in
2019.4
2019.4.16f1
2020.3
2021.2
2022.1
2022.2
Issue ID
1390034
Regression
No
RegisterCallback<ChangeEvent<T>> doesn't output when CustomPropertyDrawer is used for the type and handed to PropertyField
How to reproduce:
1. Open the user's attached "UnityBugPropertyField" project
2. Open the "SampleScene" Scene
3. Select the "GameObject" GameObject in the Hierarchy
4. Change the value of the "Ingredient" or "Length 2" numeric fields value in the Inspector
Expected result: "Property value changed to: ..." message is output in the Console log after changing the "Ingredient" or "Length 2" numeric fields value
Actual result: No message is output
Reproducible with: 2019.4.36f1, 2020.3.30f1, 2021.2.14f1, 2022.2.0b11, 2022.2.0a7
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Resolution Note:
This is a limitation of IMGUIContainer's backwards compatibility. When a property is edited by IMGUI code, no UIToolkit event is sent as IMGUI is unaware of the existence of these events.
One can instead register to PropertyField.RegisterValueChangeCallback with SerializedPropertyChangeEvent to be notified when any type of value under a PropertyField has changed:
https://docs.unity3d.com/2021.2/Documentation/ScriptReference/UIElements.PropertyField.RegisterValueChangeCallback.html