Microsoft Ajax ScriptManager Javascript Issue
Last week, when I was conducting a Hot-Labs for Microsoft Singapore, I got a question from one of the attendees.
"Does ScriptManager actually stores itself in the CACHE? Else I'd have to have it on multiple pages, and that could suffer quite a fair bit on bandwidth"
Re: Does ScriptManager actually stores itself in the CACHE?
Yes, It's stored in the Browser Cache. Thus even if you have ScriptManager on multiple pages, performance is just once.
Re: Else I'd have to have it on multiple pages, and that could suffer quite a fair bit on bandwidth
Through my understanding, when you develop an AJAX enabled page, you should not actually have too many physical pages. Instead, you should have only a couple of pages (one for pre-login and another for logged-in view), as the data/information are pulled in, to the updatepanel, thus having the entire page refresh.