RE: [flexcoders] Cairngorm Question.

Thu, 31 Mar 2005 12:23:50 -0800

Title: Message
Yes I had tho of that idea ben. But was wondering what was the clean way to do it. Thanks for the reply's so far.
 
Omar Ramos
Itacon Corporation
Technology Manager

From: Ben Elmore [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 31, 2005 2:17 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] Cairngorm Question.

The way Cairngorm current architects the ViewHelper is that it requires each ViewHelper to register itself to the ViewLocator under a unique name. Therefore if you are attaching the view dynamically in a repeater and using the same value in the 'name' attribute for the ViewHelpers then the ViewLoactor will throw an error.
 
One approach to your solution is to have the each of your views bubble up its methods to the parent view that the repeater exists in.
 
For example (in code babble).
 
MyMainView.mxml
 
<mx:script>
    public activeChild : MovieClip = null;
 
    function parentHandleMethod(evt)
    {
        // store current child view to local var
        activeChild = evt.target'
 
         // do server call
 
    }
</ms:script
....
<mx:repeater>
    <me:mychildView >
</mx:repeater>
...
 
MyChildView.mxml
 
<mx:Metadata>
    [Event("onCustomEvent1")]
    [Event("onCustomEvent2")]
</mx:Metadata>
 
 
<mx:Button click="this.dispatchEvent({type='onCustomEvent1', otherAttributes=''})">
 
 
In this example instead of having the child view handle the logic itself (communicating to the server) it tells the parent too. Or more correctly says 'someone please do this for me' the parent will know which of the child views to get the data from since the dispatch event automatically keeps track of the target in which the event was dispatch from.
 
This is just a suggestion. There are other options out there, perhaps better or more correct then this approach.
 
Ben
 
 
-----Original Message-----
From: Omar Ramos [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 31, 2005 12:53 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] Cairngorm Question.

Anyone?
 
Omar Ramos
Itacon Corporation
Technology Manager

From: Omar Ramos [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 30, 2005 8:18 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Cairngorm Question.

Hi all,
 
I am using the Cairngorm plataform but had a small question. How can I use the viewhelper technique when I attach view dynamicaly? For example I have a mxml component and put a view helper attached to it and use this component on a repeater and 5 instances are made. When I call the getViewHelper method which of those 5 reference will it give me? Any help would be apreaciated.
 
 
 
Omar Ramos
Itacon Corporation
Technology Manager




Yahoo! Groups Links

Reply via email to