I had a need to write something that allowed users to configure the application. The property grid control is perfect but not enabled by default in .Net. Heres some more info on how to use it:

http://www.c-sharpcorner.com/Code/2004/June/PropertyGridInCSharp.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/usingpropgrid.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/vsnetpropbrow.asp