How to update modified properties only ?

joew · **Posted:** Fri Sep 09, 2005 2:15 pm

customer object
public class customer

Code:

{
   private int _CustomerID;
   private string _Ad;
   private string _Email;

   //public properties comes here
}

there is a customer record in database which customerID is 1.
and i want to update only email adres of the customer1.
i am using asp.net and i don't want to get (select) the object before update the email address bu below code block is not work.

Code:

CustomerRepository cr = new CustomerRepository();
Customer c = new Customer();
c.CustomerID = 1;
c.Email= "customer1@newemail.com";
cr.Save(c);

are there any resolution.

i think nhibernate can follow the properties and when i am updating it will update only properties which are setted to a new value (set block executed)

KPixel · **Posted:** Sat Sep 10, 2005 8:58 am

You can use ISession.Save*() methods only on fully filled entities!
And most of the time, it is not an issue if you enable lazy loading...

joew · **Posted:** Sun Sep 11, 2005 4:29 pm

i am an asp.net developer.
and my very big drawback with NHibernate is that issue.
When saving and deleting i need to the instance of the object.
i think i can delete with id and i can save only changed properties.

i hope these are get by you as a suggestion.

however i love this tool:)