Hi Syed,
You're free to directly use LoadVars, URLLoader,
NetConnection, etc. in your Flex applications to interact with a
server. FDS functionality is built on top of these core Flash APIs
on the client, and they haven't gone away. So if you have simple
data access requirements and LoadVars works for you go ahead and
use it.
But take some time to read through the FDS docs to learn more
about the advanced functionality that it provides. When you get to
the point of managing sets of data that multiple clients may be
concurrently editing and viewing, it can really simplify and
empower your development.
Best,
Seth