I'm not sure the update I'm referring to has anything to do with ObservableCollection<T>.
Note, I'm referring to editing in the Detail area, which then updates the item in the List area.
I quote from the MSDN documentation:
However, to set up dynamic bindings so that insertions or deletions in the collection update the UI automatically, the collection must implement the INotifyCollectionChanged interface.
To fully support transferring data values from binding source objects to binding targets, each object in your collection that supports bindable properties must implement an appropriate property changed notification mechanism such as the
To verify my uinderstanding, I replaced all the ObservableCollection<T> with List<T> in the "View Injection Compostion QuickStart" sample, and I still observe the update behaviour.
Thus something else must be causing the List item to be updated, yet I fail to see exactly what is doing that.
Thanks for your input, and I await your further comments.