Tabbing / Indenting / Undenting (okay that’s not a word, but it sounds good) in Visual Studio is very simple. There are several options to get your code formatted just the way you like it. This video trick shows you how.
[TAB] (With a line [or lines] highlighted) will further indent
[SHIFT]+[TAB] (With a line [or lines] highlighted) will decrease the current indentation
http://scottcate.looplogic.com/vstricks025