Change banner every page refresh

Question

I have a list of 3 Banners.

I must always show each one different Refresh of Page, even after closing the browser.

I’m thinking about doing a fingerprint counter every time a Banner and shown adds + 1 to the counter and I do this check whenever I show.

But if you have 2 Banners registered and after several impressions a third party is registered would break this scheme, because only the last to be registered would be shown.

Someone suggests another way?

Answer 1

I’m guessing your banner is on a banner list, something like List<Banner>:

banners.ElementAt(new Random().Next(0, banners.Count));