Use a validator along with a data binding to validate : Validator « Development « Flex

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Flex » Development » Validator Screenshots  Use a validator along with a data binding to validate          <?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">   <mx:Model id="userInfo">     <phoneInfo>       <phoneNum>{phoneInput.text}</phoneNum>     </phoneInfo>   </mx:Model>   <mx:PhoneNumberValidator id="pnV" source="{phoneInput}" property="text" />   <mx:TextInput id="phoneInput" />   <mx:TextInput id="zipCodeInput" /> </mx:Application>                                           Related examples in the same category 1. A basic validator for requirement 2. Set source and trigger for validator 3. Set source and property for Validator 4. Validate model data with Validator 5. Declare validators in ActionScript 6. Assigning a validator to the data model 7. Set validator property to text 8. Set validator domain 9. Validator returns ValidationResultEvent 10. Use Validator.validateAll() to invoke validators in an Array 11. Assign validator target 12. MXML validator classes 13. Call validator validate method in button click action handler 14. Use a Button control to invoke a validator 15. Use Validators in function 16. Run a list of validators defined in an Array 17. Display validation result for a list of validator one by one 18. Create and invoke a validator programmatically in when a user clicks a Button control 19. Invoking multiple validators in a function 20. Explicitly handing validator validation events 21. Use Validator defined in MXML and call its validate method 22. Create an array with the validators 23. Create and invoke a validator programmatically when a user clicks a Button control 24. Use method to invoke two validators in response to the click event for the Button control 25. Use a Button control to invoke a validator, but the application first determines which validator to execute 26. Use Email validator 27. Use Array.filter() filter out disabled validator 28. Use button event to trigger a validation event 29. ActionScript based Validation 30. Form data validation 31. Triggering validation by using events 32. Triggering validation by using the default event 33. Call validation method in a user method 34. ValidationResultEvent property 35. Changing the color of the validation error message 36. Clearing a validation error 37. Validate one component but have validation results apply to a different component 38. Explicitly handling component validation events 39. More than one field date validation 40. Data Validation Through Events 41. Data Validation Through ActionScript 42. Triggering validation with Events 43. Write the performValidation() function 44. Perform a validation on a required input field 45. Reset Value based on validation result 46. Set errorString to create an error tip without performing any validation 47. validate handler and invalid handler 48. Run the validate() method and assign the result to a variable 49. Required field Error message