Try This:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="absolute">
<mx:Script>
<![CDATA[
import mx.managers.CursorManager;
import mx.controls.Alert;
public var str:String;
public function onChange(event:Event):void
{
var rest:int=0;
str=t1.text;
for(var i=0;i<10;i++)
{
if(t1.text.substring(0,1)==i)
rest=1;
}
if(rest!=1)
{
t1.restrict="[0-9][a-z][A-Z]";
}
else
{
t1.text="";
t1.text=str.substring(1,str.length);
t1.restrict="[a-z][A-Z]";
}
}
]]>
</mx:Script>
<mx:Label x="41" y="130" text="Enter Text Here :" width="167"
height="26" fontFamily="Georgia" fontSize="15" fontWeight="bold"/>
<mx:TextInput x="192" y="130" height="25" width="190" id="t1"
change="onChange(event)"/>
</mx:Application>
---
Veeru
ITON Technologies
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