Collections from LINQ to SQL and the ability to filter

BindingListCollectionView view;
view = (BindingListCollectionView)CollectionViewSource.GetDefault (dataContext.Persons);

ObservebleCollection<Person> col = new ObservebleCollection<Person>(dataContext.Persons.ToList());
ListCollectionView view = (ListCollectionView)CollectionViewSource.GetDefault(col);

var q = from p in Persons.AsBindable() select p;