public partial class Customer : INotifyPropertyChanging, INotifyPropertyChanged {

private string _CustomerID;
private string _CompanyName;

// ... kd vynechn ...

private EntitySet<Order> _Orders;
// Definice roziujcch metod
// ... kd vynechn ...

public EntitySet<Order> Orders {
get {
	return this._Orders;
}
set {
	this._Orders.Assign(value);
}
}

// ... kd vynechn ...
private void attach_Orders(Order entity) {
this.SendPropertyChanging();
entity.Customer = this;
}

private void detach_Orders(Order entity)
{
this.SendPropertyChanging();
entity.Customer = null;
}
}
