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Question by BrkTbn · Nov 15, 2016 at 01:24 PM · scriptableobjectinvalidcastexception

List of Custom Class in Scriptableobject Loses Data On Play (Unable To Cast Parent To Child)

Hello,

I have a custom class named GUIElement, and a list of it in my scriptableobject class.

GUIElement has many child classes.

class Child1 : GUIElement .. .. class Child2 : GUIElement .. ..

And so on. I use the something like the following when adding new objects to the list.

List list;

list.Add(new Child1());

.. ..

Then I try to access it using the following and get InvalidCastException.

Child1 object = (Child)list[0];

I know that from many ChildX classes this one was a Child1, because I have a type variable in the parent class which I set in the child's constructor so that I know which class it is when I am casting back.

It works, but when I hit play or close/reopen Unity, the console says that it cannot cast it back. It still keeps the data though, and it knows the type I set before. Just cannot cast while it can before.

What is the problem?

Thanks

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