Entity Framework - ASP.NET Dynamic Data - page 45

Supplier required for each Product, the multiplicity on the Supplier end of the association
would have been 1 instead.
FIGURE 2.7 Association between entities.
In addition to the associations, the Update Wizard also adds navigation properties to the
entities such as the Supplier property in the Product entity. Unlike the underlying scalar
property SupplierID , which only stores a key value, the Supplier property returns an
instance of the Supplier entity it represents. On the opposite end of this association, the
Supplier class has a Products navigation property that returns an EntityCollection of
Product instances associated with a particular Supplier. Here is how the generated code
looks if you take a look at the NorthwindEntities.Designer.cs :
public partial class Product : EntityObject
{
// ...
public int? SupplierID { get; set; }
public Supplier Supplier { get; set; }
// ...
}
public partial class Supplier : EntityObject
{
public int SupplierID { get; set; }
public EntityCollection<Product> Products { get; set; }
// ...
}