Did WPF 4.5 parent-child behavior change: we can now add a child to another parent without exception?

Question

In .Net 4.0 the following code throws an InvalidOperationException with the message \"Specified element is already the logical child of another element. Disconn

Answer 1

There are times when it makes sense for a child to have more than one logical parent, for instance in layout-to-layout animation. I'm guessing the WPF team decided it was time to let developers decide when and how to use this instead of disallowing it.