i think i have an architecture flaw:
Basically, i have a page consisting of two usercontrols: Product and cart. The product has a button "Add". When it is clicked the id of the product should be added to the 'Cart' usercontrol. I want it to be as much AJAXy as possible, i.e. i want the 'Cart' to be refreshed immediately, but also want to stay OO, meaning, the "Product" usercontrol should not be aware of the "Cart" usercontrol. Is it possible? How?