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    copied!<p>You could just attach two validator to the same field. The only problem is that there are situations where both event could be triggered. For example if you show a pop up when on text input tou will also focus out.</p> <p>Howevere this is a working example:</p> <pre><code>&lt;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"&gt; &lt;fx:Script&gt; &lt;![CDATA[ import mx.events.ValidationResultEvent; protected function stringvalidator1_validHandler(event:ValidationResultEvent):void { trace("Validated testInput"); } protected function stringvalidator1_invalidHandler(event:ValidationResultEvent):void { trace("Invalidated testInput"); } protected function stringvalidator2_validHandler(event:ValidationResultEvent):void { trace("Validated focusOut"); } protected function stringvalidator2_invalidHandler(event:ValidationResultEvent):void { trace("Invalidated focusOut"); } ]]&gt; &lt;/fx:Script&gt; &lt;fx:Declarations&gt; &lt;mx:StringValidator source="{fname}" minLength="4" maxLength="20" property="text" valid="stringvalidator1_validHandler(event)" invalid="stringvalidator1_invalidHandler(event)" triggerEvent="{TextEvent.TEXT_INPUT}"/&gt; &lt;mx:StringValidator source="{fname}" minLength="4" maxLength="20" property="text" valid="stringvalidator2_validHandler(event)" invalid="stringvalidator2_invalidHandler(event)" triggerEvent="{FocusEvent.FOCUS_OUT}"/&gt; &lt;/fx:Declarations&gt; &lt;s:Panel title="StringValidator Example" width="75%" height="75%" horizontalCenter="0" verticalCenter="0"&gt; &lt;mx:Form left="10" right="10" top="10" bottom="10"&gt; &lt;mx:FormItem label="Enter a name between 4 and 20 characters: "&gt; &lt;s:TextInput id="fname" width="100%"/&gt; &lt;/mx:FormItem&gt; &lt;/mx:Form&gt; &lt;/s:Panel&gt; &lt;/s:Application&gt; </code></pre>
 

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