Set StringValidator to validate required field : StringValidator « Data Model « Flex

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Flex » Data Model » StringValidator Screenshots  Set StringValidator to validate required field       <?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">   <mx:StringValidator id="reqV" source="{inputA}" property="text" required="true" />   <mx:TextInput id="inputA" />   <mx:Button label="Submit" click="reqV.validate();" /> </mx:Application>                            Related examples in the same category 1. Using ActionScript to validate min length text input 2. Using StringValidator to check if the character count is within range 3. Change event we can validate in real time 4. Using the StringValidator class 5. A StringValidator ensures text has been entered. 6. Too long error and too short error messages for StringValidator 7. StringValidator for Form text input 8. Validating required fields