Let's say I want to see actual source code for some Framework member - say
the .BeginInvoke() of the delegate class. How can I acquire that? Is there
some utility that will break it out for me? Please note that I'm not looking
for documentation on the method. I'm looking for the equivalent of the
actual source code.

Motivation? I was recently learning about the AsyncOperationManager class
and came across this link - which looks like source code that is or could be
the very source code for the AsyncOperationManager.

http://www.koders.com/csharp/fidC71069981AC71303F8EF8C24FABB13BC3D41EBC3.aspx?s=sort

This is very helpful to have - and I understand that site provides a lot of
such code. Just wondering how I can get that on my own - without having to
rely on any Web site (that site might become outdated, etc).

Thanks.