Hi, is there any way to save an object passing its parent id guid and not the istance ?

Example:

Account a = new Account(new Guid(), prop1, prop2. prop3....)

a.Office= (here i pass an instace of persisted class Office).

May i pass a Guid identificator instead of an instance.

Thanks

Up.

Can anyone answer me!

Assuming Office is lazy, you can do a.Office = session.Load(typeof(Office), officeId);

in this case session.Load will not go to the database, it will only create a proxy for Office.

ok, thanks. So, any way, i need to call database to get persistent class.

I'm try to work disconnected from DB. What's your advise to do this.
I think i need to load all Offices entity at first connection to DB and than when i create a new account i can associate it.

Thanks.

If an object is lazy and you use load you'll just get a proxy to the object with no actual database hit. The database will only be hit if you touch one of the proxy's properties (it's Id excepted, of course).

The proxy is in effect recognized as an actual object, so if you set the Account.Office property to the proxy then when you save or update the Account object it will have a reference to the object that the proxy represents.

To do this you need to know the id of the office you want to get a proxy for, of course...

Symon.

Great i didn't know this. Your answer was very helpful for me.

Thanks