如何将ObjectSet转换为DbSet

Question

I'm trying to create class from abstract one:

public class ManufacturerEntityService : BaseEntityService<Manufacturer>
{
    Entities entities = new Entities();

    protected override ObjectSet<Manufacturer> EntitySet
    {
        get { return entities.Manufacturers; }
    }

}

Error occurred:

Cannot implicitly convert type 'System.Data.Entity.DbSet<_21century.Models.Manufacturer>' to 'System.Data.Objects.ObjectSet<_21century.Models.Manufacturer>'

In BaseEntityService i've used ObjectSet, cause DbSet doesn't have SaveData method. The question is how to convert ObjectSet to DbSet? Is it possible or not? Any walkarounds? I have to pass DbContext obj there?

I'm newbie in creating mvc projects. Searching didn't give any result. Hope someone can help me.

Answer 1

The answer can be found here: How to convert DbSet in Entity framework to ObjectQuery

public class ManufacturerEntityService : BaseEntityService<Manufacturer>
{
    Entities entities = new Entities();

    protected override ObjectSet<Manufacturer> EntitySet
    {
        get 
        { 
            ObjectContext objectContext = entities.ObjectContext;  
            return objectContext.CreateObjectSet<Manufacturer>("Manufacturers");
        }
    }

}