actionscript3 to do something if null text field is found - actionscript-3

Question

In actionscript i have multiple dynamic text fields who are loading values from a php page using print.
...
vartxt1.text = receiveVars.phpVar1;
vartxt2.text = receiveVars.phpVar2;
vartxt3.text = receiveVars.phpVar3;
vartxt4.text = receiveVars.phpVar4;
vartxt5.text = receiveVars.phpVar5;
...
which is going very well.
Question: What i'm trying to do is, if let's say the vartxt2 is empty or has a specific value, the text field to be deleted, and the following text fields to be moved up in the place of the one deleted. The text field are one under other.
Thank you very much

Answer 1

Here the code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="init()">
<mx:Script>
<![CDATA[
import mx.controls.TextInput;
private var txtArr:Dictionary = new Dictionary();
private var size:int;
public function init():void{
var arr:Array = ["aaaaaaa","bbbbbbbb","ccccccc","ddddddddddd","0","ffffffff","eeeeeee","0","ggggg","hhhhhh"];
var i:int = 0;
for each(var obj:String in arr){
var txt:TextInput = new TextInput();
txt.text = obj;
txt.id = "txt" + i.toString();
txtArr[i] = txt;
addChild(txt);
i++;
}
size = i;
}
public function sort():void{
for(var i:int; i < size - 1; i++){
var str:String = TextInput(txtArr[i]).text;
if(str==null || str.length==0 || str=="0"){
TextInput(txtArr[i]).text = TextInput(txtArr[i + 1]).text;
removeChild(txtArr[i]);
}
}
}
]]>
</mx:Script>
<mx:Button id="btn" label="Click Me" click="sort()"/>
</mx:Application>
I hope will be useful. You can dowload the Flex Project here.