void deleteActor(string ID)
{
if(ID!=null)
{
var p = new Person { PersonId = new Guid(ID) };
Person.Attach(p);
Person.Remove(p);
SaveChanges();
}
}
Person createOrUpdateActor(Person p)
{
if(p.PersonId != null)
{
Entry(p).State = EntityState.Modified;
SaveChanges();
}
else
{
Person.Add(p);
}
return p;
}