title: In focus row in Xceed datagrid doesn't get updated
body: <p>I have a Xceed Datagrid whose <code>ItemsSource</code> is <code>CollectionViewSource</code> defined in XAML. Whenever grid is updated, only the row which is in focus doesn't show updated values (revert back to original values) but all of other rows are updated. If I directly bound the grid to a Collection in <code>ViewModel</code> then everything works fine. The problem is only when, <code>CollectionViewSource</code> comes into picture. Any help is appreciated. </p>