Using CurrencyValidator class to validate a currency value entered in U.S. dollars and in Euros
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<!-- validators\CurrencyExample.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx">
<s:layout>
<s:VerticalLayout />
</s:layout>
<fx:Declarations>
<!-- Example for US currency. -->
<mx:CurrencyValidator id="usV" source="{priceUS}"
property="text" alignSymbol="left" trigger="{valButton}"
triggerEvent="click" />
<!-- Example for European currency. -->
<mx:CurrencyValidator id="eurV" source="{priceEU}"
property="text" alignSymbol="right" decimalSeparator=","
thousandsSeparator="." trigger="{valButton}" triggerEvent="click" />
</fx:Declarations>
<s:Label text="Enter a US-formatted price:" />
<s:TextInput id="priceUS" />
<s:Label text="Enter a European-formatted price:" />
<s:TextInput id="priceEU" />
<s:Button id="valButton" label="Validate Currencies" />
</s:Application>
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