Well, I hate to sound ditzy here, but I didn't actually fix all the problems by 
changing the background color. That fix stabilized the problem, making it so 
that the dead zones no longer seem random. However, it is now a situation where 
there is a definite cutoff about midway through the main HBox. Anything to the 
left of center will create a DragOver event. Anything to the right, won't.

Has anybody seen this issue?

--- In [email protected], "bgamblin" <bra...@...> wrote:
>
> Never mind. I figured it out. I totally forgot that for something to be 
> droppable, it has to be a visible component. In this case, setting the 
> background color to anything at all makes it a droppable target.
> 
> Sorry for the interruption.
> 
> 
> --- In [email protected], "bgamblin" <BrandG@> wrote:
> >
> > Say you have an HBox, and inside that HBox you have lots of little child 
> > HBoxes. Now, you want to rearrange the child HBoxes using drag and drop.  
> > Using Flex, it's pretty easy to enable drag/drop support. However, the 
> > dragover event seems to fire at odd points.
> > 
> > As I drag a child HBox around the main HBox, I sometimes see the invalid 
> > drag icon, even though it should be valid. If it disallowed dragging one 
> > child over another, I could understand that. But even that seems random, 
> > with some portions of the children showing as valid drag targets, and 
> > others not. With a small number of children, it was odd but not 
> > debilitating. With a large number of children, it became entirely 
> > untenable. If I have ten children, I can't drop the items anywhere except 
> > the first half of it's width.
> > 
> > Is there another element to this that affects where an object becomes a 
> > drop target or not? Variable width perhaps? Padding? I'm at a loss.
> >
>


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