Simeon, Very good description of the process and it makes perfect sense. So it seems that one has to cast the generic to an array, which then is gets wrapped by the ArrayCollection.
My curiosity about this process is that in Benoit's PhoneCairngorm app, in which an array of VO's are being passed back to the result, (exactly what I am doing), but in his app, no casting to Array is needed. This is the oddity and which I though could be a bug in the flexbuilder or somewhere in the flex chain. Anyhow, lesson learned, when in doubt, in the future, I will definitely cast returned results. Thanks again Simeon. Tim --- In flexcoders@yahoogroups.com, "Simeon Bateman" <[EMAIL PROTECTED]> wrote: > > Glad that was able to help you out :) > > I dont know about a double cast per se, but I can tell you about why we > needed this cast. If you notice our handler gets a resultEvent object > back. We access the "result" property of that event. If you look at the > docs here: > http://livedocs.macromedia.com/labs/1/flex/langref/mx/rpc/events/Resu ltEvent.html > You will see that the result property is typed as a generic object. This is > done so we can return any data we need to from our remote services. In our > case though we are using that result in the constructor of our > ArrayCollection. The ArrayCollection can take an array as a constructor > argument, but as far as flex knows event.result is just an object. So we > cast it to Array datatype to fullfil this requirement. > > As for the other cast, without going back in the history of the thread, I > can only guess. My guess is that the items in the array need to implement a > certain interface, and for the same reason as above ( result as a generic > object) you needed to cast it to the correct type. > > Hope that helps clear things up. Glad you got thing running. > > simeon > > > On 4/18/06, sufibaba <[EMAIL PROTECTED]> wrote: > > > > > > Simeon, > > > > You are a LEGEND... Been wacking my head on this. That did the > > trick. > > > > BTW, why is it that it one has to do a double cast. In > > PhoneCairngorm from Benoit, the compiler didn't need this extra > > casting. Is this some sort of bug do you think? > > > > > > Tim > > > > --- In flexcoders@yahoogroups.com, "Simeon Bateman" <simbateman@> > > > > wrote: > > > > > > for the first part of your problem I think you need to cast the > > results as > > > an array > > > > > > change > > > model.categoryList = new ArrayCollection(event.result); > > > to > > > model.categoryList = new ArrayCollection(event.result as Array); > > > > > > I have something similiar in my app and this is how I get around > > the > > > implicit type cast. > > > > > > simeon > > > > > > > > > > > > > > > > > > -- > > Flexcoders Mailing List > > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > > Search Archives: http://www.mail-archive.com/flexcoders% 40yahoogroups.com > > > > > > ------------------------------ > > YAHOO! GROUPS LINKS > > > > > > - Visit your group "flexcoders<http://groups.yahoo.com/group/flexcoders>" > > on the web. > > > > - To unsubscribe from this group, send an email to: > > [EMAIL PROTECTED]<flexcoders- [EMAIL PROTECTED]> > > > > - Your use of Yahoo! Groups is subject to the Yahoo! Terms of > > Service <http://docs.yahoo.com/info/terms/>. > > > > > > ------------------------------ > > > -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
