I use the entity classes of my edmx file for LINQ queries in my application.
I have come to the point where I need to add additional, business logical functionality/Properties to these classes. I wonder if I should do this via "Inherits" or "Partial Classing". I have tried it with Inherits and it works relatively good and I also would prefer to use "real" inheritance.
The problem now is that I can not add any records with the "AddToTablename" Sub of the entitiy class anymore because the inheriting class is situated in another namespace than the entity class.
Is there a solution like casting the objects (which I tried already but maybe made a mistkae) ?
Here is exmaple code:
Code: Select all
'Generated entity class Namespace Data Partial Public Class DB Inherits Global.System.Data.Objects.ObjectContext ... ... ... End Class End Namespace 'Inheritance class Namespace Business Public Class USER Inherits MyApp.Data.USER 'Custom functions Public Function Check() As CheckFeedback ... ... End Function End Class End Namespace 'Code to add User Imports MyApp.Business Dim oUser as USER ... ... LinqAccess.AddToUSER(oUser) LinqAccess.SaveChanges()