Hi,
'How do I ... ?'
-> 'How do I filter on fields in another entity?'
-> Adapter
Following code is not correct:
filter.Relations.Relations.Add(OrderEntity.Relations.OrderDetailsEntityUsingOrderID);
filter.Relations.Relations.Add(OrderDetailsEntity.Relations.ProductEntityUsingProductID);
I think there is a 'Relations' too much (both in C# and VB.Net)