Hi Guido,

First of all, I would like to confirm my understanding of your issue. From
your description, I understand that you need to display the CustomerName
instead of CustomerID in the child table. If there is any misunderstanding,
please feel free to let me know.

As far as I know, we can try another way to achieve this. Suppose we are
working on a typed dataset and data relations(CustomersOrders) have been
created.

1. Add a new column named CustomerName in the Orders table.
2. Set the CustomerName.Expression to "Parent(CustomersOrders).CustomerName"

A new column will be added to the Orders table. Its value will be get from
parent table automatically. For more information about expression, please
check the following link:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/
frlrfSystemDataDataColumnClassExpressionTopic.asp

Kevin Yu