HTTPService not reading updated xml, i've been having to refresh the xml in my browser manually

Question

I am calling an HTTPService (id=data2php) which runs a php
script which creates an xml doc and puts it on my server. i then
call another HTTPService (id=feedRequest) which reads the xml doc.
i then try to populate a datagrid with the lastResult of my
HTTPService that reads the xml doc. My issue is that that the
HTTPService which reads the xml doc reads the previous incarnation
of the xml doc, not the newly created one that my HTTPService
(data2php) created. i've been manually going to the xml doc in my
browser and hitting refresh for my feedRequest HTTPService to read
the updated xml.
here is the mxml for the httpservice that reads the xml:
<mx:HTTPService id="feedRequest" url="
http://cfcdi.org/eric/dashboard/php/sales.xml"
result="feedResult(event)" resultFormat="xml" useProxy="false"/>
pretty straight forward.
(actually, once in a while it will read the updated
one)

Answer 1

LittleMuscle,
Instead of binding to the lastResult property, I would
explicitly handle the result and fault events of the HTTPService
(the one that reads the newly created xml doc) and then manually
update an XMLListCollection for use as the datagrid's dp. That way,
you can at least walk through the debugger and see what's going on,
and force the second HTTPService to read only when you're sure the
newly created doc is ready.
Since you said it works sometimes and not other times, it
sounds like it's just a timing problem, sometimes the xml doc is
created quickly enough that the HTTPService grabs the new xml doc,
but if not, it's grabbing the old one. That would be my
guess.