GET [snip]System/Web/UI/Page.cs
So I just set up debugging of the .NET framework source code as per the instructions on Shawn Burke's blog, which took all of a couple of minutes, fired up a test project and stepped into ListControl.cs to have a look at OnSelectedIndexChanged(). As you can see in the below, I'm in the middle of System.Web.UI.WebControls.ListControl:
So I had to have a look see how it works, so I fired up Fiddler and retrieved Page.cs ... Yes, that Page.cs:
It's pretty compelling reading, just spent about 30 minutes looking at the code for that one class alone. Wonder if it's possible to run the VS 2008 code metrics over it ;-)