Haykel BEN JEMIA wrote:
> You get the message because getChildAt returns a DisplayObject which
> does not have a getChildAt method (that's what the error message is
> saying). You have first to cast the object returned from the first
> getChildAt call to a DisplayObjectContainer or a subclass of it (in
> your case it's a VBox). There are different ways to do it, one way
> would be:
>
> var theVidButton:VBox = (vidButtonBox.getChildAt(0) as
> VBox).getChildAt(0) as VBox;
>
> You must make sure that vidButtonBox.getChildAt(0) will return a VBox
> otherwise you will get an exception! It's better to do something like
> this:
>
> var theVidButton:VBox = null;
> var vidButtonContainer:VBox = vidButtonBox.getChildAt(0) as VBox;
> if (vidButtonContainer != null)
> {
> theVidButton = vidButtonContainer.getChildAt(0) as VBox;
> }
>
> if (theVidButton == null)
> {
> //something went wrong
> }
>
> Hope it helps!
>
Yes that helps greatly. Now I am able to access the child, but it seems
to not be the child I raised.
I can't set a style on it.
I tried this, and it compiled but causes the error below.
(vidButtonBox.getChildAt(0) as VBox).(getChildAt(0) as
VBox).setStyle("backgroundAlpha","0");
ypeError: Error #1123: Filter operator not supported on type
mx.containers.VBox.
at Main/mouseUpVidButton()[K:\xampp\htdocs\jbh\Main.mxml:203]
I usually have no trouble setting a backgroundAlpha on a VBox, so why is
it telling me the filter operator is not supported ?
>
> On Sat, Oct 4, 2008 at 4:51 PM, [EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]> <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
> wrote:
>
>
> I have a VBox in mxml called vidButtonBox
> <mx:VBox id="vidButtonBox" height="435" width="215"
> styleName="vidButtonBoxStyle" paddingLeft="10" paddingRight="10" >
> </mx:VBox>
>
> In action script, I create a VBox with a Vbox child
> var vidArea:VBox = new VBox;
> var vidButton:VBox=newBbox;
> vidArea.addChild(vidButton);
>
> then add that to the mxml Box
> vidButtonBox.addChild(vidArea);
>
> Then I try to access the children
> var theVidButton:VBox= vidButtonBox.getChildAt(0).getChildAt(0);
>
> And I get this error:
> K:\xampp\htdocs\jbh\Main.mxml(145): Error: Call to a possibly
> undefined
> method getChildAt through a reference with static type
> flash.display:DisplayObject.
>
> This makes no sense at all. What is going on here ? How do I access
> child[0].child[0]?
>
>
>
>
> --
> Haykel Ben Jemia
>
> Allmas
> Web & RIA Development
> http://www.allmas-tn.com
>
>
>
