<?xml version="1.0" encoding="utf-8"?>
  <!-- Simple example to demonstrate the NumberValidator. -->
  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
  
      <mx:Script>
          import mx.controls.Alert;
      </mx:Script>
  
      <mx:NumberValidator source="{age}" property="text" integerError="Enter Integer value"
          minValue="18" maxValue="50" domain="int" 
          trigger="{myButton}" triggerEvent="click"
          valid="Alert.show('Validation Succeeded!');"/>
  
      <mx:Panel title="NumberValidator Example" width="75%" height="75%" 
          paddingTop="10" paddingLeft="10" paddingRight="10" paddingBottom="10">
  
          <mx:Form>
              <mx:FormItem label="Enter an age between 18 and 50: ">
                  <mx:TextInput id="age" width="100%"/>
              </mx:FormItem>
  
              <mx:FormItem >
                  <mx:Button id="myButton" label="Validate" />
              </mx:FormItem>
          </mx:Form>
      </mx:Panel>
  </mx:Application>