Hello, everyone, it's my first post, I'm quite new with nhibernate, so, forgive me if my post looks too stupid :)

As a beginner I met quite a lot of problems, but I solved some of them already.
Though, there are few problems still remaining. I thought this might be a best place to get right answers.
As you might guess, I "try" to use an ObjectDataSource for viewing and manipulating my data.
First there was a sorting problem in a GridView, but I solved it.
Now I have an updating an deleting problem.

I'm using this statement in my DAO object:

public void Delete(T t)
{
Session.Delete(t);
}

I specify DataKeyNames property in a GridView, but something is missing and it doesn't work.

Same problem with update. I'm using SaveOrUpdate() method but no result.

Hope I'll get answers on my questions here, and these answers will help other beginners in advance :)
Thanks everyone...

Hi,

this is me again, with another username :D
strange, that nobody answered this question.

here's the answer:

First you need to add Session.Flush() to the method, second, you cannot delete object straight from the data control, because this object isn't one from the Session, i.e. it's an "empty" object with the ID of the expected object, this is because of DataKeyNames = "ID" (when you reach Delete(T t) in the code this 't' has ID of the expected object) so what you need is get this ID, retrieve a "real" Session object with this ID and then delete id "by hand".

Cheers

Giorgi

Thanks, It certainly helped me ;-)

I'm so glad :)
Happy coding!

Giorgi