Sie brauchen gar keine ProviderCollection. Nehmen SIe als Beispiel unsere Klasse Customer aus dem ObjectDataProvider-Beispiel der Installation:
class Customer
{
//Constructor
public Customer(int customerID, string companyName, string contactName, string address, string city)
{
CustomerID = customerID;
CompanyName = companyName;
ContactName = contactName;
Address = address;
City = city;
OrderList = new List<Order>();
}
public List<Order> OrderList { get; set; }
// D: Die CustomerID soll nicht im Designer zur Auswahl verfuegbar sein
// US: The CustomerID should not be available in the designer
[Browsable(false)]
public int CustomerID { get; set; }
public string CompanyName { get; set; }
// D: Setze Property-Name, welcher im Designer verwendet werden soll
// US: Set property name, which should be used in the designer
[DisplayName("Name")]
public string ContactName { get; set; }
public string Address { get; set; }
public string City { get; set; }
}
Die Daten werden in etwa so gefüllt:
public static List<Customer> GetGenericList()
{
List<Customer> customerList = new List<Customer>();
//D: Mehrere Kunden erstellen
//US: Create some customers
Customer customer1 = new Customer(1, "Joe's Tatoo", "Joe Smith", "Kingstreet 2a", "Queens");
Customer customer2 = new Customer(2, "Tec n Toc", "Peter Bush", "Park Avenue", "NewYork");
Customer customer3 = new Customer(3, "Sunshine Agency", "Brian Holiday", "Island Road 1", "Zurich");
Customer customer4 = new Customer(4, "Hiking Store", "Sandra Mountain", "Hillstreet 6", "Garmisch");
//D: Die Bestellungen fuer den ersten Kunden definieren
//US: Define orders for the first customer
customer1.OrderList.Add(new Order(1, new DateTime(2006, 1, 20), "Nils van de Glocke", "Houston", 14.64));
customer1.OrderList.Add(new Order(2, new DateTime(2006, 6, 21), "Bruce White", "New Orleans", 214.00));
customer1.OrderList.Add(new Order(3, new DateTime(2006, 3, 1), "Kurt Muster", "Berlin", 6420.00));
//D: Die Bestellungen fuer den zweiten Kunden definieren
//US: Define orders for the second customer
customer2.OrderList.Add(new Order(4, new DateTime(2005, 12, 3), "Bill Bunny", "Frankfurt", 640.99));
//D: Die Bestellungen fuer den dritten Kunden definieren
//US: Define orders for the third customer
customer3.OrderList.Add(new Order(5, new DateTime(2006, 4, 3), "Mia Rust", "Madrid", 56.60));
customer3.OrderList.Add(new Order(6, new DateTime(2006, 4, 16), "Mia Rust", "Madrid", 450.00));
customer3.OrderList.Add(new Order(7, new DateTime(2006, 4, 25), "Mia Rust", "Madrid", 1585.00));
//D: Die Bestellungen fuer den vierten Kunden definieren
//US: Define orders for the fourth customer
customer4.OrderList.Add(new Order(8, new DateTime(2006, 6, 6), "Steve Random", "Vienna", 990.00));
//D: Die einzelnen Kunden in die Kundenliste aufnehmen
//US: Add the single customers to the customer list
customerList.AddRange(new Customer[] { customer1, customer2, customer3, customer4 });
return (customerList);
}
Dann kann ich den Provider so instanzieren:
var provider = new ObjectDataProvider(GenericList.GetGenericList());
// D: Den vom Designer verwendeten Tabellennamen festlegen (optional)
// US: Declare a name for the table, which will be used in the designer (optional)
provider.RootTableName = "Customer";
LL.SetDataBinding(provider, "Customer");
LL.AutoMasterMode = LlAutoMasterMode.AsVariables;
LL.AutoProjectFile = "IEnumerable.lst";
LL.Design();
und erhalte im Designer
So sollte es auch mit Ihrer Datenquelle funktionieren 
.
