Lets say I have the following:

```
public class MyObject
{

[Bindable]
public var foo:int = 3;

}

...

[Bindable]
var _obj:MyObject = null;

```

What's the best way to bind foo so that this binding is updated when \_obj is set to a new instance?

I've tried: 

```
<mx:Label text="{_obj&amp;&amp;_obj.foo}"/>

```

But it isn't pretty. Can I express this somehow using 

What do the SO::Flex community think?