I've got tables (FlightItinerary and FerryItinerary) that extend another table (ItinerarySector).

How can I tell if either table has been created without requiring that table to be added?

If I check the values of IsNew and IsDirty, saving fails as it's trying to save all the tables.

I have got round it with a travel type flag but I would be interested to know what I should have done

Thanks

James

(Using VB.NET, LLBLGen Pro 2.6 Self Servicing.)

Hi James,

How can I tell if either table has been created without requiring that table to be added?

I not quite understand the question, sorry. You mean you have three tables, two of them are related 1:1 to ItinerarySector, right? Then you want to know if an entity is Flight or Ferry?

Are you using entity inheritance setup in your LLBLGen project? For more info read Polymorphic Fetches

That's sounds right. I don't know if I'm using entity inheritance. Is it a default thing based on the database setup or is it a manual setting?

Basically, I want to know how to determine if an entity with a 1:1 relationship to the current entity has been instantiated without instantiating it.

It seems that what I'm doing at the moment is instantiating it, as when I do a recursive save, it is trying to save the related entity that hadn't previously been instantiated.

I've found a better way to get round the problem - I've set LazyLoadingWithoutResultReturnsNew to false as discussed in this thead