Navigating through objects in flex and refreshing them

Question

In an mxml file called Rate,
I have a vertical box called stepsVB and an array called steps.
This stepsVB is activated in a state called "states"
when currentState = "" i see something else.
steps contain objects of mxml files. step1.mxml, step2.mxml, step3.mxml and step4.mxml
when i click on the next button, I navigate from step1 to step2 and so on using
stepsVB.removeChildAt(0);
stepsVB.addChildAt(steps[2], 0);
when i move from step1 to step2 and step2 to step3 and change my currentState to "", if I press my next button, i see step3 instead of step1.
How do I move to step1 instead of step3. Also, I need to execute my creation complete method for each step as I move.
In other words, I need to set it up in such a way that the whole flex file refreshes. How do I accomplish this?
Your help is greatly appreciated.
Thank you very much
Nikhil

Answer 1

Hi,
If you want to map your actionscript class to your server's
Java class. You can run a util function
registerClassAlias("dev.echoservice.Book",Book);
where "dev.echoservice.Book" is the fully qualify name of
your java class. Book is your actionscript class.
Calling this util before you make your remoteobject call. You
can put this in your actionscript class constructor, it makes this
call whenever you create your class. However, it seems to be better
to call it when the class is loaded. To do so you can declare it as
static
public static var a:* =
registerClassAlias("dev.echoservice.Book",Book);
OR
You can also declare it as metaData in your class as:
[RemoteClass(alias="dev.echoservice.Book")]
However, I found someone saying that it didn't work in sdk
compilation, but webtier compilation. It might be some
configuration issue. I haven't tried it yet.
To display the properties in the dataGrid, you just have to
either use Array or ArrayCollection. If databinding is involved,
the datagrid need to know the Collection.Change event. It is better
to use ArrayCollection, therefore, adding new item to
arrayCollection the datagrid get repopulate.
hope it helps!
William Chan