You want to use numeric stepper and its value should not be editable by user.
There is no property to get this, but we can get it using mx_internal.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="horizontal"
creationComplete="onCreationComplete()">
<mx:Script>
<![CDATA[
private function onCreationComplete():void
{
nstepper.mx_internal::inputField.editable = false;
}
]]>
</mx:Script>
<mx:NumericStepper id="nstepper" value="1" stepSize="1"
maximum="10"/>
</mx:Application>
+