Adding/Editing master-children entities in a single Windows forms

Question

How would you go about designing a windows form that allows adding/editing a master entity along with it's child entities? For example When adding/editing an Order, Order-Items would also need to be added/edited on the same Windows form.

Answer 1

Either with a datagrid, embedded repeater usercontrol, or with a dialog.

You could have a list control, that when selected, displays the view/edit control in a different frame.