how to open a new folder then select a file?

when use mp3 player(desktop app).we can view song in new folder after right click on , choose view.how on air?

all can this:

var file:file = new file();

                                        file.nativepath=songarray[rolloveritemindex].url

                                        file=file.parent

                                        file.canonicalize()

                                        file.openwithdefaultapplication();

open new folder can't auto selecte file want.

More discussions in Archived Spaces

adobe