Archive for May, 2010

Flex 4: pass MXML application components reference to external classes

Using Flash Builder (Flex 4 SDK) I want to controll my application in an external class, just to make code more organized.

I want to access a button (or any other component)  and change its enabled status to disable, for example.

My application MXML looks like

[code="xml"]

<?xml version="1.0"?>
<s:Application
xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:s="library://ns.adobe.com/flex/spark">

<s:layout>
<s:BasicLayout/>
</s:layout>

<fx:Script>
<![CDATA[
import myClass;
protected function myButton_clickHandler(event:MouseEvent):void
{
myClass.myFunction(this);
}
]]>
</fx:Script>

<s:Button id="myButton" label="Click Me"
click="myButton_clickHandler(event)"/>
</s:Application>

[code]

and my external class looks like:

[code="as3"]

public class myClass
{
public static function myFunction(application:Object):void{

// disable the button
application.myButton.enabled = false;
}
}

[code]

this way you can access all the components of your mxml application.

CSS 960gs; Centering a complex design

http://hicksdesign.co.uk/journal/how-to-vertical-centering-with-css

MySQL data types best practices

Database design : what is the best data type should I use for different sorts of data?

you got to check this links;

http://www.slideshare.net/ronaldbradford/top-20-design-tips-for-mysql-data-architects-presentation

http://www.wsi-ebizsolutions.biz/blog/optimal-mysql-data-types/2010/01/

http://www.developwebsites.net/choose-optimal-mysql-data-type/

http://help.scibit.com/Mascon/masconMySQL_Field_Types.html

http://articles.techrepublic.com.com/5100-10878_11-5980073.html