PD:My English it´s not good as i like
HI Adhi, thanks for your reply
I have a database with customers, for each customer have a lot of orders with products , my idea is in a gridgrouping control show all customers, when clicked on one show all products he bought in all orders grouped by reference. Not show the orders only the products.
The relations in database are customers-orders-products, not are relation between the table of customers and products.
I hope I explained better, it´s posible?