using (NorthwindEntities db = new NorthwindEntities()) {

ObjectQuery<Orders> orders = db.CreateQuery<Orders>(
"SELECT VALUE o FROM NorthwindEntities.Orders AS o " +
"WHERE o.Customers.Country = @Country");

orders.Parameters.Add(new ObjectParameter("Country", country));

foreach (Orders o in orders) {
	Console.WriteLine(o.Display());
}
}
