A C# Riddle

I asked this one during the last blogger dinner, so here it is for everyone else (and those who couldn’t hear me there):…

You can read the copy of the original post, or if that goes down too, you can try the Wayback Machine’s copy of it.

Context: This post was automatically imported from my old blog, which was originally hosted on Microsoft’s ASP.NET Community Blogs. When they shut it down, I dumped all of my old posts to Wordpress. You can still check out the original blog on the Wayback Machine.