Well, I found the source of the problem. For anybody who runs into a similar problem, here is what I found.
The problem happened because we were databinding a constants file that lived in a different swc. So in our util swc we have an as3 class ImageConstants. The class has a [Bindable] metadata tag. It also contains a bunch of public const embedded images like this: [Embed(source="trash_can_icon.png")] public const trash_can_icon:Class; Technically you can't really databind to a const since it's value can't change. Normally the compiler just ignores it. When our ImagesConstants lived in the same swf project as everything else, we never saw a warning or a problem. Once we moved ImagesConstants to a swc, all the other SWC projects that referenced the constants got these bizarre data binding warnings like: "Data binding will not be able to detect assignments to '_title'" This is a nasty warning since it doesn't actually reference ImagesConstants, instead it seems to reference the next data binding declaration *after* ImagesConstants is referenced. For SWF projects that referenced ImagesConstants, they wouldn't even compile. You'd get this error: "A file found in a source-path must have an externally visible definition. If a definition in the file is meant to be externally visible, please put the definition in a package." Both of these compiler errors are pretty nasty, so I logged a bug. http://bugs.adobe.com/jira/browse/SDK-13839 I hope this is helpful to someone. -Adam --- In [email protected], "lothaar_online" <[EMAIL PROTECTED]> wrote: > > Hi- > > We recently pulled out some code from our project into a SWC library. > We didn't modify the code, but now things aren't working as they > used to. The original swf is compiled with a reference to the new > swc. The mxml files in the library project are giving all sorts of > unexpected data binding warnings and our application isn't working. > I'm guessing that databinding just isn't working for the mxml files in > the swc. > > For example, I'm getting this warning when I compile an mxml file in > the library project: "Data binding will not be able to detect > assignments to '_bumberDisplayName'". Here is the definition of > _bumperDisplayName as well as the line that generates the warning: > > [Bindable] > private var _bumperDisplayName:String; > > ... > > <mx:Button id="deleteBumperVideo" > icon="{ImageConstants.getInstance().trash_can_small_icon}" > toolTip="@Resource('deleteBumperVideo')" > enabled="{_bumperDisplayName != null}" > click="onDeleteBumper(event)"/> > > Does anybody have any idea why databinding would be different when > compiled in a swc? I know that the compc compiler is slightly > different from the application compiler, but it should still work, > right? Fyi, we're using flex 2.0.1. > > I'd appreciate any tips or troubleshooting advice. > > Thanks, > Adam >
