PhoneNumberValidator allowedFormatChars and error messages
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:PhoneNumberValidator id="phoneV" source="{phoneTxt}" property="text" required="true" allowedFormatChars="+-" invalidCharError="Insert valid chars" requiredFieldError="This input is required" wrongLengthError="The number is too short or too long" /> <mx:Form id="myForm"> <mx:FormItem label="Insert Phone Number" required="true"> <mx:TextInput id="phoneTxt" /> </mx:FormItem> </mx:Form> </mx:Application>