There's two things to keep in mind when pondering bindings: 1) Bindings work on "property chains", using chains of ChangeWatcher instances. It's only a couple of pages of code, and pretty easy to get your head around. You're right that they simply "stop" when they get to a null, and return null. 2) Everything inside your "{}" when you bind in MXML goes into a function, which is called wrapped inside a try{}/catch{}, and exceptions that are thrown by it are simply ignored.
-Josh On Mon, Dec 1, 2008 at 2:33 AM, Dave Kong <[EMAIL PROTECTED]> wrote: > I dont know any docs, but I think it happened to me a couple of times and > the result is that the databinding simply does not fire for any changes > after the null in the chain. > > Do a simple test app and try it out. it will be faster than you looking for > the doc. > > > On Fri, Nov 28, 2008 at 12:01 PM, Michael Prescott < > [EMAIL PROTECTED]> wrote: > >> Is there any reference material that describes how Flex behaves when it >> encounters a null part way along a data binding chain? >> >> Michael >> > > > -- "Therefore, send not to know For whom the bell tolls. It tolls for thee." Like the cut of my jib? Check out my Flex blog! :: Josh 'G-Funk' McDonald :: 0437 221 380 :: [EMAIL PROTECTED] :: http://flex.joshmcdonald.info/ :: http://twitter.com/sophistifunk