I've got a problem with my code.
I have this in my page load:
result = objdboDoc.searchFattura(Convert.ToInt64(Session["id_utente"]), id_cliente);
what does it do? Well I have a gridview on the top of the page which shows me all the invoices a user submitted for a customer. so I call the stored procedure "Look for invoices" made by "user", to "customer".
I have an another gridview in the middle of the page with all my customers. When I click on "Select customer", the page is being posted back, and then I get the id of the customer I want to show my invoices for. Since the page is posted back before executing the "Select customer" command, when I click select I still have the invoices of the old customer. Only if I click select again I get the right customer's id
It's mind blowing because I need
result = objdboDoc.searchFattura(Convert.ToInt64(Session["id_utente"]), id_cliente);
to load the invoices of the customer selected in the previous page
first, the page is not posting back before "Select Customer" it's posting back because of the click.
After you process the select from the middle grid and choose a customer I assume that someplace you are setting Session["id_utente"] which is used by the first grid. after setting the session variable it should just be a matter of rebinding the first grid with a call to DataBind.