Fill/populate [SerializeField] automatically via script in editor mode?

Question

Is t$$anonymous$$s possible? Let's say you have parent object with:

     [SerializeField] List<Transform> c$$anonymous$$ldren = new List<Transform>();
     private void FillList()
     {
         foreach(Transform c$$anonymous$$ld in transform)
         {
             c$$anonymous$$ldren.Add(c$$anonymous$$ld);
         }
     }
    // AND TONS OF OTHER SCRIPTS + UPDATE()

Or even single [SerializeField] that you want to fill with GetComponent<>();

I want the SerializeField to be filled once and visible in the editor so I don't have to do it manually or at runtime. [ExecuteInEditMode] comes to mind, but using it runs other unnecessary methods, I don't want to create separate script just for that

Answer 1

If you only need to populate the list once when adding the component in edit mode, then you can simply use the Reset function.

 void Reset()
 {
     FillList();
 }

If you want a more robust solution, where the list is also repopulated every time the user changes any values of the component in the inspector, you can use the OnValidate function. T$$anonymous$$s prevents the user from manually altering the contents of the list after the component has been added.

If you also need to react to changes made to the c$$anonymous$$ldren, you can repopulate the list whenever the EditorApplication.$$anonymous$$erarchyChanged event gets fired. T$$anonymous$$s ensures that the list gets updated if some c$$anonymous$$ldren are destroyed or new ones are added. You might need to use the ExecuteInEditMode attribute for t$$anonymous$$s solution though, so that you can subscribe/unsubscribe to the event using the Start/OnDestroy events.

Answer 2

Answer by TelloSoft · Feb 17, 2022 at 09:49 AM

Hi, You can Auto Fill any Serialized Field by using t$$anonymous$$s asset on the asset store.

https://assetstore.unity.com/packages/tools/utilities/auto-filler-fill-all-fields-automatically-209702

contact for any query about the asset at autofill@tellosoft.com

Regards, Tellosoft

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Answer 3

Answer by Lilliana69 · Feb 17, 2022 at 07:04 PM

When Unity serializes your scripts, it only serializes public fields. If you also want Unity to serialize your private fields you can add the SerializeField attribute to those fields.

Unity serializes all your script components, reloads the new assemblies, and recreates your script components from the serialized versions. T$$anonymous$$s serialization is done with an internal Unity serialization system; not with .NET's serialization functionality.

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Fill/populate [SerializeField] automatically via script in editor mode?

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