Re: [flexcoders] Re: Passing Const to custom component error

Tom Ortega Tue, 12 Sep 2006 06:45:57 -0700

I found the error. Trying to make the code more legible for the group, I stripped some tags from around the custom tag. In my orginal post, I had this:

    <mx:Spacer height="30"/>
        <components:FreedTextLabel id="nameTextLabel" ls="{ ScreenLabelConstants.NAMEINFO_LABEL}" />

When in reality, I have this:
    <mx:Spacer height="30"/>
    <components:FreedHBox>
        <components:FreedTextLabel id="nameTextLabel" ls="{ ScreenLabelConstants.NAMEINFO_LABEL}" />
    </components:FreedHBox>

The FreedHBox code looks like:
<?xml version="1.0" encoding="utf-8"?>
<mx:HBox xmlns:mx=" http://www.adobe.com/2006/mxml" width="100%" horizontalAlign="center">

</mx:HBox>

That HBox implementation is wrong, because it works just fine if I replace it with HBox.

I replaced that mxml component with a custom as class that extends HBox and it works just fine.

Strange....

Thanks for all your help Bjorn.

-Tom2

On 9/11/06, Bjorn Schultheiss <[EMAIL PROTECTED]> wrote:

I like the idea of using constants and i'm impressed the way adobe has used them in the mx framework.

I would be suprised if you cannot use them in setting values in mxml.

Try an even simpler test.

I'd help more but i'm at work now.

Will be another 10h hours until i get home and back into Flex :P

Regards,

Bjorn Schultheiss

Senior Flash Developer

QDC Technologies

From: [EMAIL PROTECTED] ups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Tom Ortega
Sent: Tuesday, 12 September 2006 10:12 AM

To: [EMAIL PROTECTED]ups.com
Subject: Re: [flexcoders] Re: Passing Const to custom component error

Thanks for your help on this. It's frustrating when "good practices" don't work so good. LOL

-Tom2

On 9/11/06, Bjorn Schultheiss < [EMAIL PROTECTED]> wrote:

I doubt it,

try debug it in here

> <mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="100%"
> height="100%" label="Name" xmlns:components="apps.common.components.*">
> <mx:Script>
> <![CDATA[
> import apps.common.asFiles.ScreenLabelConstants;

trace('test: '+ScreenLabelConstants.NAMEINFO_LABEL');

nameTextLabel.ls=ScreenLabelConstants.NAMEINFO_LABEL;
> ]]>
> </mx:Script>
> <mx:Spacer height="30"/>
> <components:FreedTextLabel id="nameTextLabel" ls="{
> ScreenLabelConstants.NAMEINFO_LABEL}" />
> </mx:VBox>

I'll run another test when i get home and get it working.

Regards,

Bjorn Schultheiss

Senior Flash Developer

QDC Technologies

From: [EMAIL PROTECTED]ups.com [mailto: flexcoders@yahoogroups.com] On Behalf Of Tom Ortega
Sent: Tuesday, 12 September 2006 12:09 AM
To: [EMAIL PROTECTED]ups.com
Subject: Re: [flexcoders] Re: Passing Const to custom component error

I wish badly that you were correct, but alas, I fear not.

I replaced components with freedCom for both the namespace and directory names. Compiled and passing a const into the FreedTextLabel still results in a null value, while passing in a plain string value of "Name" works. Even passing a binding to a variable such as ls="{someVar}" where someVar is set to the const will result in a null value being displayed.

I did a bit of debugging though and discovered this. If I pass it a simple string value, the setter gets fired. If I pass it a reference to a var or const, the setter doesn't fire. Maybe the var reference doesn't register as a true value assignment and thus doesn't fire/trigger the setter?

-Tom2

On 9/11/06, bjorn.schultheiss <[EMAIL PROTECTED] > wrote:

It's te components namespace you set in the component.
The compiler doesn't like xmlns:components="apps.common.components.*"
not sure why, perhaps components is a reserved word?!?

Using getters and setters is good practice for use within components.

Overall the code is fine.

--- In [email protected], "Tom Ortega" <[EMAIL PROTECTED]> wrote:
>
> I have this class:
> package apps.common.asFiles
> {
> public class ScreenLabelConstants
> {
> public static const NAMEINFO_LABEL:String = "Name";
> }
> }
>
> I have this code in my app:
> <mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="100%"
> height="100%" label="Name" xmlns:components="apps.common.components.*">
> <mx:Script>
> <![CDATA[
> import apps.common.asFiles.ScreenLabelConstants;
> ]]>
> </mx:Script>
> <mx:Spacer height="30"/>
> <components:FreedTextLabel id="nameTextLabel" ls="{
> ScreenLabelConstants.NAMEINFO_LABEL}" />
> </mx:VBox>
>
> The FreedTextLabel has this:
> <?xml version="1.0" encoding="utf-8"?>
> <mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml "
> creationComplete="initFunc()" borderThickness="1" cornerRadius="0"
> shadowDistance="0" width="80%">
> <mx:Script>
> <![CDATA[
> import apps.common.asFiles.ScreenLabelConstants;
> [Bindable] private var _ls:String;
> [Bindable] public var mainLabelText:String;
>
> public function get ls():String
> {
> return _ls;
> }
>
> public function set ls(newValue:String):void
> {
> _ls = newValue;
> mainLabelText = _ls + ":";
> }
>
> public function initFunc():void
> {
> mainLabelText = ls + ":";
> }
>
> ]]>
> </mx:Script>
> <mx:Label id="mainLabel" text="{mainLabelText}"/>
> </mx:Panel>
>
>
> The problem is that it won't work. No data gets passed to my custom
> component. Why is that? Is it because my app is binding the var to
> constant value? Or because I'm using a setter/getter on the var
receiving
> the reference?
>
> Thanks,
> Tom2
>

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Re: [flexcoders] Re: Passing Const to custom component error

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