I wrote the following using EF6, but I believe it is all compatible with EF5. The general idea behind the code is to use the excellent classes in a System.Data.Metadata.Edm to get the navigation properties and use reflection on those property names to get the true properties of the object for updating. I wanted to … Read more
Yup – it’s not that straightforward. Here’s what you do: 1 – Right click on the designer, Add -> Association 2 – Setup the association and cardinalities (People *..1 Gender, People *..1 Race) 3 – Go into the Model Browser -> Associations 4 – Right click on your newly created associations, click Properties 5 – … Read more
virtual was never required in EF. It was needed only if you want lazy loading support. Since Lazy loading is not yet supported by EF Core, currently virtual have no special meaning. It would when (and if) they add lazy loading support (there is a plan for doing so). Update: Starting with EF Core 2.1, … Read more
Collections: It doesn’t matter. There is a distinct difference between collections and references as navigation properties. A reference is an entity. A collections contains entities. This means that initializing a collection is meaningless in terms of business logic: it does not define an association between entities. Setting a reference does. So it’s purely a matter … Read more