Updating web part properties, without the tool pane

here is a nice developer article for you - something I see asked a lot of times, and Rob Nowik is answering with a great how to article: Updating web part properties, without the tool pane

CAML sorting by file name

If you are doing a CAML query and want the results sorted by the file name (and not by title, which may be different than the file name) use the following:
<OrderBy><FieldRef Name='LinkFilenameNoMenu' /></OrderBy>