Question

What is best way to map following classes?

I have classes where communication is “base” class as it contains shared data for either option. There can be only communication to ComSms or to ComEmail. The problem is i am unsure how to proceed with the mapping.
I would like if at all possible use one repository for accessing the Objects.

Class Set Up

public interface ICommunication
    {

    }

public Communication: ICommunication{
   //PK and FK on this item
   public virtual int CommunicationId{get;set;}  
   public virtual string Name {get;set;}
   public virtual string Surname {get;set;}
   public virtual DateTime Date{get;set;}

   //I am expecting to switch on type between ComSms and ComEmail
   public virtual Type {get;set;}     

}

public ComSms : Communication{
   public virtual string Number {get;set;}
   public virtual string Text {get;set;}
}
public ComEmail : Communication{
   public virtual string Subject{get;set;}
   public virtual string Body {get;set;}
   public virtual string Address {get;set;}
}

Database

Imagined usage

ICommunication smsToSave = new ComSms()
smsToSave.Name = "UserName";
smsToSave.Surname ="UserSurname";
smsToSave.Date = DateTime.Now;
smsToSave.Type = 1;
smsToSave.Number ="123456789";
smsToSave.Text = "Hello boys";
CommunicationRepository.Save(smsToSave)

Answer 1

ok
i have resolved it by separated repositories that handles ever part of it instead

i could not bind it correctly, so chosen to go around the problem.
if you find any way of doing this please let me know