I have a GridView bound to a BindingSource. My LINQ entity relationship is simple: Customer -> Orders.
So binding is simple, too: BindingSource source = new BindingSource(context, "Customers");
When I add a new row on the grid for the customer, the AddingNew event fires and it automatically inserts. However, when I expand the Customers node (its a hierarchical grid) and add a new order row, the AddingNew event doesn't fire on the binding source at all.
If I switch the binding source to:
BindingSource source = new BindingSource(context, "Orders"); then I don't get my customers obviously, but inserting a new order works fine too.
Something tells me that it's not supporting the relationship properly or something. What am I missing?