Unable to solve: ArgumentException: Getting control 3's position in a group with only 3 controls when doing Repaint Aborting

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Hey everyone, Ok ok i know this was asked many times. However i wasn't able to find any solution in the other threads.

First of all here is my editor script, or at least the important part:

 public override void OnInspectorGUI()
     {
         serializedObject.Update ();
         elements = EditorGUILayout.PropertyField (serializedObject.FindProperty ("publicScenes"), false);
         serializedObject.ApplyModifiedProperties ();
 
         EditorGUI.indentLevel += 1;
 
         if (elements)
         {
             for (int count = 0; count < myScript.publicScenes.Count; ++count)
             {
                 if (showPublicScenesElement.Length != myScript.publicScenes.Count)
                 {
                     if(Event.current.type == EventType.Repaint)
                         UpdateScenesElementBools ();
                 }
                 else
                 {
                     showPublicScenesElement [count] = EditorGUILayout.Foldout (showPublicScenesElement [count], "Element " + count);
                     
                 }
             }
         }
         EditorGUI.indentLevel -= 1;
 
         if (GUILayout.Button ("Update Level buttons Animation"))
         {
             myScript.UpdateLevelAnimation ();
         }
         if (GUILayout.Button ("Recreate Buttons"))
         {
             myScript.RecreateButtons ();
         }
     }

At the beginning i had the same error but with a 9 instead of a 3 and i managed to solve part of this problem by adding the following line on line 15:

  if(Event.current.type == EventType.Repaint)

The problem persisted but now i could't find any simple solution. I tried many things and with commenting out a lot of my code i found out that the problem is by the foldout at line 20. Does anyone know how to get rid of this error. I am actually going crazy.

Thanks in advance -Jorge

Answer 1

Best Answer

Answer by Soraphis · Apr 21, 2016 at 10:16 AM

 .....
 if (elements) {
     if (showPublicScenesElement == null || 
         showPublicScenesElement.Length != myScript.publicScenes.Count) {
         showPublicScenesElement = new bool[myScript.publicScenes.Count];
     }
                 
     for (int count = 0; count < myScript.publicScenes.Count; ++count) {
         showPublicScenesElement[count] = EditorGUILayout.Foldout(showPublicScenesElement[count],
             "Element " + count);
     }
 }
 ....

you should'nt update your bool[] "showPublicScenesElement" inside the loop. i dont know if this will fix your problem... but just consider: what if the array lenghts of those lists are not the same, and the event called is not repaint?

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jmparavicini · Apr 21, 2016 at 10:31 AM 0

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Thanks a lot, I didn't even think about this line anymore because the i added the repaint check the error number went down from 9 to 3 so i thought it didn't have anything to do with it. You just made my day :)

Unable to solve: ArgumentException: Getting control 3's position in a group with only 3 controls when doing Repaint Aborting

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