This method will refresh current wodFtpDLX window. It
will request directory listing from the server and populate
current view with items returned by the server.
Refresh method must send request for directory listing
again, since it uses internal buffers for parsing which can
be destroyed by methods you execute. Also, remote directory
contents may be changed in the meantime so this would show
such changes too.
Typically, if you want to change current remote
directory contents from your code, and show them on the
screen, you will have to execute ListDir method
and then call Refresh after you get Done event.