Thanks everyone. I thought I was missing out on something basic in Flex to be
able to programmatically update a TextInput field in a header renderer. But,
turns out it is not that easy.
So, what I ended up creating an event listener in the header renderer when the
header renderer is added to the stage (and removing it when removed from
stage). Then in the main application when I want to update the TextInput field,
dispatch an event. This works well.
The other thing that should work, which I didn't try, might be to create a
global variable in the main app that is bindable, and have the header renderer
access that (as I believe Alex alludes to below) in mxml such as <s:TextInput
text="{myCondition}".../>.
----- Original Message -----
From: "Alex Harui" <aha...@adobe.com>
To: "users, apache" <users@flex.apache.org>
Sent: Tuesday, December 2, 2014 9:36:41 AM
Subject: Re: AW: AW: how to updateDisplayList() in custom headerRenderer?
(help!)
On 12/2/14, 3:45 AM, "Krüger, Olaf" <okrue...@edscha.com> wrote:
>I tried it also and also tried some other ways but nothing works. I've no
>idea how to get it working with an headerRenderer, sorry.
>Perhaps Alex could help?
Maybe I’m not understanding the problem, but in general, the #1 rule for
item renderers is to tie their visuals to the data property or an
associated property. IOW, the item renderer should be watching a model
and/or its properties for changes. Trying to push changes notification
down through the DG into the renderers is difficult or impossible.
HTH,
-Alex
