[flexcoders] Re: How to invalidate ViewStack Pages
Thanks for the explanation. That all makes sense, but what do you
mean by using databinding to do the same thing?
Thanks again for the explanation - it helped alot.
jelentz
--- In flexcoders@yahoogroups.com, Gordon Smith [EMAIL PROTECTED] wrote:
There is no function on the child pane that is called when the ViewStack
switches to it. All the ViewStack does is bring that child to the front.
But if you write a handler for the ViewStack's change event, it will
get called every time selectedIndex or selectedChild changes. So you can
do something like this:
mx:Script
private function changeHandler(event:Event):void
{
if (viewStack.selectedChild == pane1)
pane1.name = Gordon;
}
/mx:Script
mx:ViewStack id=vs chage=changeHandler(event)
mx:Canvas id=pane0
...
/mx:Canvas
mx:Canvas id=pane1
mx:TextInput id=name/
/mx:Canvas
/mx:ViewStack
If each pane were a component with a reinitialzie() method that you
wrote, you could simplify this so
mx:ViewStack id=vs change=vs.selectedChild.reinitialize()
...
mx:ViewStack
But using databinding is even easier.
- Gordon
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of jlentz2112
Sent: Saturday, October 14, 2006 2:59 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: How to invalidate ViewStack Pages
How do you reinitialize a pane? Is there some function that is called
everytime you switch to a new child? I'm wanting to pass an object
into a child each time I call it, so I need someway to have a function
called automatically when a child is switched to, so I can
reinitialize and use the data just passed in.
Thanks,
jelentz
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
, Gordon Smith gosmith@ wrote:
Databinding is one way to accomplish this:
mx:TextInput id=name text={someDataObject.name}/
Another would be to write a change handler on the ViewStack. Switch
on
the selectedIndex and re-initialize the pane you're changing to.
- Gordon
From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
] On
Behalf Of jlentz2112
Sent: Friday, October 13, 2006 8:17 PM
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] How to invalidate ViewStack Pages
Hi,
I've got a ViewStack that I navigate around using selectedIndex. It
works fine the first time I go to a page, but when I leave and return
to that same page, I need to have all the TextInput fields
re-initialized. It doesn't seem to do that. Returning to a
previously selected index displays the data that was there when I left
that page - not the new data I have. Is there a way to force a child
page to create or refresh its different fields?
Thanks,
jelentz
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[flexcoders] Re: How to invalidate ViewStack Pages
How do you reinitialize a pane? Is there some function that is called
everytime you switch to a new child? I'm wanting to pass an object
into a child each time I call it, so I need someway to have a function
called automatically when a child is switched to, so I can
reinitialize and use the data just passed in.
Thanks,
jelentz
--- In flexcoders@yahoogroups.com, Gordon Smith [EMAIL PROTECTED] wrote:
Databinding is one way to accomplish this:
mx:TextInput id=name text={someDataObject.name}/
Another would be to write a change handler on the ViewStack. Switch on
the selectedIndex and re-initialize the pane you're changing to.
- Gordon
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of jlentz2112
Sent: Friday, October 13, 2006 8:17 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] How to invalidate ViewStack Pages
Hi,
I've got a ViewStack that I navigate around using selectedIndex. It
works fine the first time I go to a page, but when I leave and return
to that same page, I need to have all the TextInput fields
re-initialized. It doesn't seem to do that. Returning to a
previously selected index displays the data that was there when I left
that page - not the new data I have. Is there a way to force a child
page to create or refresh its different fields?
Thanks,
jelentz
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com
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RE: [flexcoders] Re: How to invalidate ViewStack Pages
There is no function on the child pane
that is called when the ViewStack switches to it. All the ViewStack does is
bring that child to the front. But if you write a handler for the ViewStack's
change event, it will get called every time selectedIndex or selectedChild
changes. So you can do something like this:
mx:Script
private function
changeHandler(event:Event):void
{
if (viewStack.selectedChild == pane1)
pane1.name = Gordon;
}
/mx:Script
mx:ViewStack id=vs
chage=changeHandler(event)
mx:Canvas
id=pane0
...
/mx:Canvas
mx:Canvas
id=pane1
mx:TextInput id=name/
/mx:Canvas
/mx:ViewStack
If each pane were a component with a
reinitialzie() method that you wrote, you could simplify this so
mx:ViewStack
id=vs change=vs.selectedChild.reinitialize()
...
mx:ViewStack
But using databinding is even easier.
- Gordon
From:
flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jlentz2112
Sent: Saturday, October 14, 2006
2:59 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: How to
invalidate ViewStack Pages
How do you reinitialize a pane? Is there some function
that is called
everytime you switch to a new child? I'm wanting to pass an object
into a child each time I call it, so I need someway to have a function
called automatically when a child is switched to, so I can
reinitialize and use the data just passed in.
Thanks,
jelentz
--- In [EMAIL PROTECTED]ups.com,
Gordon Smith [EMAIL PROTECTED] wrote:
Databinding is one way to accomplish this:
mx:TextInput id=name text={someDataObject.name}/
Another would be to write a change handler on the ViewStack.
Switch on
the selectedIndex and re-initialize the pane you're changing to.
- Gordon
From: [EMAIL PROTECTED]ups.com
[mailto:[EMAIL PROTECTED]ups.com]
On
Behalf Of jlentz2112
Sent: Friday, October 13, 2006 8:17 PM
To: [EMAIL PROTECTED]ups.com
Subject: [flexcoders] How to invalidate ViewStack Pages
Hi,
I've got a ViewStack that I navigate around using selectedIndex. It
works fine the first time I go to a page, but when I leave and return
to that same page, I need to have all the TextInput fields
re-initialized. It doesn't seem to do that. Returning to a
previously selected index displays the data that was there when I left
that page - not the new data I have. Is there a way to force a child
page to create or refresh its different fields?
Thanks,
jelentz
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