ef code first - Entity Framework Inheritance share database fields -

so, using entity framework code first. model:

public class stockmove {     public int id { get; set; }      public int productid { get; set; }     public virtual product product { get; set; } }  public class stockmoveout : stockmove {     public int customerid { get; set; }     public virtual customer customer { get; set; }      public int originlocalid { get; set; }     public virtual local originlocal { get; set; } }  public class stockmovein : stockmove {     public int supplierid { get; set; }     public virtual supplier supplier { get; set; }      public int destinationlocalid { get; set; }     public virtual local destinationlocal { get; set; } }  public class stockmovetransfer : stockmove {     public int originlocalid { get; set; } //should same stockmoveout     public virtual local originlocal { get; set; }      public int destinationlocalid { get; set; } //should same stockmovein     public virtual local destinationlocal { get; set; } }  public class datacontext : dbcontext {     public dbset<stockmove> stockmoves { get; set; } } 

i need refer fields (originlocalid, destinationlocalid) in stockmovetransfer same stockmovein , stockmoveout, entity framework expect new fields.

the sql ddl generated is:

create table [dbo].[stockmoves] (     [id] [int] not null identity,     [productid] [int] not null,     [customerid] [int] null,     [originlocalid] [int] null,     [supplierid] [int] null,     [destinationlocalid] [int] null,     [originlocalid1] [int] null, -- should not exists     [destinationlocalid1] [int] null, -- should not exists     [discriminator] [nvarchar](128) not null,     primary key ([id]) ); 

well, how can configure entity framework point existing fields?