If enter is pressed for the AutoCompleteBox, the box always takes over the selectedItem. That's actually a good thing.
Is there still the possibility to accept the entered text with "Enter" in the AutoCompleteBox and not the selectedItem.
The problem is that under certain circumstances no new entry can be created. Example:
Items:
-BostonCeltics
-BostonBruins
If I enter only Boston, the selected entry is always transferred to the box.