How to inherit from dll?

Question

OOP

Good afternoon.
I have a class that describes database entities, this class is in dll.

//
    // Summary:
    //     Ссылочное значение с кодом.
    public class ReferenceCodeValue : ReferenceValue
    {
        //
        // Summary:
        //     Код значения.
        public string Code { get; set; }
    }
}

I want to add new entities, how can I do this without changing the class structure?

Table= new ReferenceCodeValue()
                               {
                                   Name= t.Name,
                                   Id = t.kl_TypeUID,
                                   Code = t.Type_U,
                               },

Answer 1

Are you using EntityFramework to connect to the database?
If yes, then just dbContext.Table.Add(new ....); dbContext.SaveChanges();