Thanks for the example.But I still have some questions. 1)Is viewHelper used to segregate as code from mxml? 2)Its not used in any of examples provided for Cairngorm 2 nor is it part of any discussion about cairngorm 2 architecture.Is it an optional feature retained from cairngorm 0.99? 3)If I dont have any need to manipulate the mxml file from other files(which you have mentioned below), should I still go ahead and create a viewHelper for each view?
--- In flexcoders@yahoogroups.com, e baggg <[EMAIL PROTECTED]> wrote: > > //mainScreen.mxml > <?xml version="1.0" encoding="utf-8"?> > <mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml"; width="100%" height="100%" > xmlns:viewHelper="com.myapp.view.*" verticalGap="0"> > <viewHelper:MainScreenViewHelper id="mainScreenViewHelper" /> > <mx:Label id="mylabel" text="Hello World"/> > </mx:VBox> > > //MainScreenViewHelper > package com.myapp.view > { > import org.nevis.cairngorm.view.ViewHelper; > import com.communify.model.ModelLocator; > > /** > * Gives a handle to main.mxml and its subcomponents > */ > public class MainScreenViewHelper extends ViewHelper{ > private var model:ModelLocator = ModelLocator.getInstance (); > public function MainScreenViewHelper(){ > super(); > } > > public function updateLabel(updatedString : String):void{ > Label(view.mylabel).text = updatedString; > } > > } > } > > So, the line of code "<viewHelper:MainScreenViewHelper id="mainScreenViewHelper" />" instantiates the ViewHelper class and registers it with the singleton class ViewLocator. This means that any class or mxml file can access the components of the MainScreen.mxml by calling: > > var viewHelper : MainScreenViewHelper = MainScreenViewHelper (ViewLocator.getInstance().getViewHelper("mainScreenViewHelper")); > viewHelper.updateLabel(otherTextField.text); > > --------------------------------- > Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1ยข/min. > -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
