I'm fairly certain that ChangeWatcher is the base for all bindings. -Josh
On Wed, Jun 25, 2008 at 6:16 PM, nwebb <[EMAIL PROTECTED]> wrote: > Hi Tracy, > > I was really just checking that I hadn't missed anything obvious (as I'm > intending to write a blog post which covers this area). So, is it safe to > say that if you want a method to be triggered each time a bindable value > changes, ChangeWatcher is the (only) way to go? > > ChangeWatcher achieves what I want to do here but so does BindSetter to a > lesser degree (i.e. the destination is essentially a method) ... > but that seems to be stretching the intended use of an implicit setter. I > was just checking that there weren't any other alternatives to consider. > > Cheers, > Neil > > > On Tue, Jun 24, 2008 at 6:02 PM, Tracy Spratt <[EMAIL PROTECTED]> > wrote: > >> ChangeWatcher. Is there some reason you do not want to use this? >> >> Tracy >> >> >> ------------------------------ >> >> *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] *On >> Behalf Of *nwebb >> *Sent:* Tuesday, June 24, 2008 10:55 AM >> *To:* flexcoders@yahoogroups.com >> *Subject:* [flexcoders] triggering a function (when an argument is a >> bindable value)? >> >> >> >> Hi, >> >> I was looking at how you can trigger a function when an argument is a >> bindable value.... >> >> e.g. >> >> //userLevel is a bindable value & formatMessage is a function will be >> called when userLevel changes >> <mx:Label text="{formatMessage(userLevel)}" /> >> >> This is cool if you're just displaying a value in a text field. However, >> what if you don't necessarily want to return a value (i.e. you don't have a >> destination)? >> Hopefully this will show what I mean: >> >> private function stateManager(value:String):void >> { >> switch(value) >> { >> case "basic": >> currentState = ''; >> break; >> case "admin": >> currentState = 'AdminState'; >> break; >> default: >> currentState = ''; >> } >> } >> >> BindingUtils methods and the binding tag both expect a destination, but in >> this case there isn't one. Is the solution simply to use ChangeWatcher >> instead, or can this be done using binding syntax? >> >> Cheers >> >> >> >> > > -- "Therefore, send not to know For whom the bell tolls. It tolls for thee." :: Josh 'G-Funk' McDonald :: 0437 221 380 :: [EMAIL PROTECTED]
