I haven't tried that yet, I just created a ReadOnlyCollectionBase, a la ProjectList from the book and I'm having trouble binding it to a combobox, I checked the structure and it has the items from the db but the combo box doesn't display anything, i'm doing

cb1.DisplayMember = "Name"
cb1.ValueMember = "ID"
cb1.DataSource = list1

Any coments on that would be appreciated