Using Navigation properties?

Question

I'm trying to set a foreign key with

protected void AdresDetailsView_ItemInserting(object sender,     DetailsViewInsertEventArgs e)
{
    var Id = Convert.ToInt32(CustomerDropDownList.SelectedValue);
    e.Values["Customer_Id"] = Id;
}

This does not work because my entity (Adres) does not have a property Customer_Id.
Customer_Id is the column name in the database and I should use the Customer property which is the navigation property.
But I don't know how to.

I'm using EF 4.5

Answer 1

Are you using Code First? If so, I would recommend creating your own foreign key properties and using the Fluent API to establish your constraints and relationships.