I'm using the .net 2.0 templates, 2-class self-servicing, with SQL Server.

I'm creating an object graph with a single root object, a number of new objects in one of its collections, with each of those new objects also getting a new 1:1 object instance as well as other new objects in one of their collections.

Now I want to recursively save the graph - rootEntity.Save(true); - within a single database transaction. I see some superficial comments in the docs that a recursive save internally uses a single DB transaction. Does that mean I don't have to explicitly create a transaction and add each of the new objects to it? If I do need an explicity transaction, can I just add the root object, or do all of the new objects need to be added?

Thanks!

Donnie

You are right you don't need to create your own transaction. You just call rootEntity.Save(true) and a transaction is created and used to save the rootEntity and all related dirty entites. If you want to make this part of a transaction that is already taking place and locking the tables that the save will be updating then you add the rootEntity to that transaction and then call the save.