What are these extra javascript files in my ASP.NET 4.5 WebForms project?

Question

I created a new ASP.NET 4.5 WebForms project and found a bunch of extra javascript files pertaining to GridView, DetailsView and other data related components as well as MSAjax. I assume they are to help with AJAX on data components, but I don't know how to use them.

I read almost every ASP.net announcement and haven't heard anything about these files and searched Google and didn't find anything either.

Answer 1

Those files belong to the Microsoft Ajax Library,it's a collection of tools similar to jQuery. MSDN describes it like this :

"Microsoft Ajax features enable you to quickly create Web pages that provide a rich user experience and that include responsive and familiar user interface (UI) elements. Microsoft Ajax includes client-script libraries that incorporate cross-browser ECMAScript (JavaScript) and dynamic HTML (DHTML) technologies. By using Microsoft Ajax, you can improve the user experience and the efficiency of your Web applications."

You can see the reference here : Microsoft Ajax