Question

I heard that Sharepoint use asp.net but which asp.net? Is it classical or MVC version?

Answer 1

I’m not sure what classical means exactly but it definitely is not MVC.

From the whitepaper: The SharePoint 2010 Developer Platform

The 2010 release of SharePoint can be viewed in three parts:

1. Microsoft SharePoint Foundation 2010: The basis of everything else in
   SharePoint, SharePoint Foundation 2010 is the successor to Windows
   SharePoint Services 3.0.
2. Microsoft SharePoint Server 2010: The successor to Microsoft Office SharePoint
   Server (MOSS) 2007, this product contains a group of technologies that address
   more specialized problems. While SharePoint Server 2010 is built largely on
   SharePoint Foundation 2010, it’s a separate product—using it requires
   purchasing a license.
3. SharePoint Online: A Microsoft-hosted version of SharePoint technology, this
   offering lets both users and developers use SharePoint’s functionality without
   installing any on-premises SharePoint software.

On the used technology for SP2010 (from the Glidepath):

SharePoint Foundation 2010 uses Microsoft ASP.NET 3.5, even if a later version of ASP.NET is also installed on the front-end Web server.

As for the former MOSS2007 version

…with the release of the 2007 Microsoft Office system, Microsoft provides products and technologies such as Windows SharePoint Services 3.0 and Microsoft Office SharePoint Server 2007 that are built on top of ASP.NET 2.0.