[Issue] ShowIf / EnableIf does not work with Arrays or Lists in nested classes

[ShowIf("ShowIfTest")]
public int[] test;
public bool ShowIfTest => false;

Here is the code I used to test it, no nesting. It should be hidden, but no matter what, it will always show. Tried with List as well.

I tried to search around current and past issues, but nothing came up on this issue. Is there any workaround for this issue, or did I miss the proper way to do this?

Thank you for all your work!

[jurcaua]

I’m not very sure either how to fix it 😦

I guess for now, if you ever find some sort of workaround, let me know!! Would be very useful to have! Thank you so much for investigating the issue however, I really appreciate it 😃

[dbrizov]

I understood why it’s now working. Look at this example.

public class _NaughtyComponent : MonoBehaviour
{
	public MyClass nest;
}

[System.Serializable]
public class MyClass
{
	[ReadOnly]
	public int[] one;

	[ReadOnly]
	public int[] two;
}

Even though I’ve marked the arrays with [ReadOnly] the property drawer is applied to each element of the arrays, not the arrays themselves. This is how Unity applies CustomPropertyDrawers to lists/arrays. This is what happens with the [AllowNesting] attribute. [AllowNesting] is a normal drawer, it just triggers the meta attributes’ behaviors (like [ShowIf] for instance). The problem is that NaughtyAttributes triggers the behaviors before the actual drawer is called. The drawer can’t handle the visibility itself, because the parent property is already drawn. I can make it handle the visibility itself, but the result will be just like the [ReadOnly] attribute. The array will be visible, only the child elements will not.

The reason why the [ShowIf] works for not nested arrays is that I can get the array and say to Unity - “draw the property and its children”. Before I draw the property and its children, I check if it is visible. If it’s not I don’t draw it at all.

I can’t think of a way to fix it 😦