In the book the website uses a user control for the cart. The cart works, because it is on a page accessed via the menu, which means you have to navigate to it.

But I want the cart to be visible throughout, so I have included the user control in the master page, but the cart will not update until you navigate to another page.

Does anyone have any ideas how to get the user control to update as soon as an item is added to the cart?

Cheers

JayLou

The problem is the order of events. What happens is that most of the events in the master page actually happen before the page events. So when by the time you run the event procedure on the page, where you've clicked a button to add the item to the cart, the master page's Load event has already taken place; hence the cart still shows the old data. There is one event however, that you can use in the master page instead of the Load event, and that is PreRender; this happens after events
caused by buttons on the content page. So just move the binding of the cart from Page_Load to Page_Prerender.