I just need a file (picture, pdf or other type file for printing) of the framework structure. It is very usefull while learning .Net framework.
If you are bold and adventurous you can use a tool I found on CodeProject. Send the framework classes to it and, voila, after some crunching, grinding and groaning you should get a diagram from it.
Check this poster and see if it helps.
(source: msdn.com)
and Here is the deep zoom version.
.NET Framework 3.5 Common Namespaces and Types Poster
November 2007 Edition The .NET
Framework 3.5 Common Namespaces and Types PosterOverview
The .NET Framework 3.5 Common Namespaces and Types Poster is downloadable as XPS or PDF format. There is also an XPS format file which prints over 16 letter or A4 pages for easy printing. Some assembly is required if you choose this print method.
You didn't specify which version of the .NET Framework, and it's a little unclear if you mean a map of each class or a map of all classes. Anyhow, here's for .NET 3.5:
http://download.microsoft.com/download/4/a/3/4a3c7c55-84ab-4588-84a4-f96424a7d82d/NET35_Namespaces_Poster_LORES.pdf
http://download.microsoft.com/download/4/a/3/4a3c7c55-84ab-4588-84a4-f96424a7d82d/NET_35_Namespaces_Poster_JAN08.pdf
I'm looking at one (and several others) right behind me at the moment, apparently it comes with Visual C#/Studio.