Entity Framework Ignore property by conventions

问题

I have a code-first model where all entities are derived from a Entity base class. I have a property IsDeleted in base class which I want to ignore in all entities (I cannot remove/comment IsDeleted property since base class is used in many projects). Is there a way to configure modelBuilder to ignore this property form all entities (by conventions, I think), without to specify modelBuilder.Entity<...>().Ignore(l => l.IsDeleted) for all entities from my model?

Thanks, Ion

回答1:

You can do this using the new EF 6.1 Custom Code First Conventions:

modelBuilder.Types().Configure(c => c.Ignore("IsDeleted"));

This will ignore any property of the name IsDeleted in any of your types.

If you only want to do this for classes inheriting a certain base class, you can do:

modelBuilder.Types()
            .Where(t => t.IsSubclassOf(typeof(MyBaseClass)))
            .Configure(c => c.Ignore("IsDeleted"));

回答2:

You can use the [NotMapped] annotation on the properties, but that will still need to be added for each entity which isn't the same as only specifying it once and having a convention for ignoring it.

来源：https://stackoverflow.com/questions/22038690/entity-framework-ignore-property-by-conventions