I'm trying to implement a binding between some custom-built models and just beginning to dabble with the whole mx.binding.* collection. I tried this simple, stripped down example, but can't get the binding working correctly. Can somebody tell me where I'm going wrong?
// Model
package
{
import flash.events.EventDispatcher;
public class Model extends EventDispatcher
{
private var m_count:uint = 0;
[Bindable]
public function get Count():uint
{
return this.m_count;
}
public function set Count(c:uint):void
{
this.m_count = c;
}
}
}
And this is what the application MXML looks like
// MXML
<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:core="*" creationComplete="this.init();">
<mx:Script>
<![CDATA[
import flash.events.Event;
import flash.utils.describeType;
import mx.binding.utils.ChangeWatcher;
[Bindable]
public var model:Model;
public function init():void
{
var _this:Object = this;
this.addEventListener(Event.ENTER_FRAME, function(e:Event):void {
_this.model.Count++;
});
this.model = new Model();
trace(ChangeWatcher.canWatch(this.model, "Count")); // This always returns false for some reason
trace(describeType(this.model));
}
public function UpdateText(s:String):void
{
trace(s);
}
]]>
</mx:Script>
<mx:Text text="{this.model.Count}" creationComplete="trace(this);" />
</mx:WindowedApplication>
Update: I tried an even more bare-bones version as shown below.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="this.m_init();">
<mx:Script>
<![CDATA[
import mx.binding.utils.ChangeWatcher;
[Bindable] public var m:Object = new Object();
public function m_init():void
{
trace(ChangeWatcher.canWatch(this, "m"));
}
]]>
</mx:Script>
<mx:Text text="{this.m}" />
</mx:Application>
Still. Doesn't. Work. ChangeWatcher.canWatch still returns false, although the textfield does display [object Object].