(Preview)
Package | mx.validators |
Class | public class Validator |
Inheritance | Validator ![]() ![]() |
Implements | IMXMLObject, IValidator |
Subclasses | CreditCardValidator, CurrencyValidator, DateValidator, EmailValidator, NumberValidator, PhoneNumberValidator, RegExpValidator, SocialSecurityValidator, StringValidator, StyleValidator, ZipCodeValidator |
Language Version: | ActionScript 3.0 |
Product Version: | Flex 3 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
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The Validator class defines the following tag attributes, which all of its subclasses inherit:
<mx:Validator enabled="true|false" listener="Value of the source property" property="No default" required="true|false" requiredFieldError="This field is required." source="No default" trigger="Value of the source property" triggerEvent="valueCommit" />
More examples
Related API Elements
Public Properties
Property | Defined By | ||
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![]() | constructor : Object
A reference to the class object or constructor function for a given object instance. | Object |
Protected Properties
Property | Defined By |
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Public Methods
Method | Defined By | ||
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![]() | addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | |
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Dispatches an event into the event flow. | EventDispatcher | |
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Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
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Indicates whether an object has a specified property defined. | Object | |
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Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
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Indicates whether the specified property exists and is enumerable. | Object | |
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Removes a listener from the EventDispatcher object. | EventDispatcher | |
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Sets the availability of a dynamic property for loop operations. | Object | |
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Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
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Returns the string representation of the specified object. | Object | |
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Returns the primitive value of the specified object. | Object | |
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Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher |
Protected Methods
Method | Defined By |
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Events
Event | Summary | Defined By | ||
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![]() | [broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active. | EventDispatcher | ||
![]() | [broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive. | EventDispatcher |
Protected Constants
Constant | Defined By |
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Property Detail
Constructor Detail
Method Detail
Event Detail
Constant Detail
Examples How to use this example
SimpleValidatorExample.mxml
<?xml version="1.0" encoding="utf-8"?> <!-- Simple example to demonstrate the Validator class. --> <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"> <fx:Script> <![CDATA[ // Import necessary classes. import mx.controls.Alert; import mx.events.ValidationResultEvent; // Event listener for the valid and invalid events. private function handleValid(evt:ValidationResultEvent):void { if (evt.type == ValidationResultEvent.VALID) { // Enable Submit button. submitButton.enabled = true; } else { submitButton.enabled = false; } } // Submit form is everything is valid. private function submitForm():void { Alert.show("Form Submitted!"); } ]]> </fx:Script> <fx:Declarations> <!-- The Validator class defines the required property and the validator events used by all validator subclasses. --> <mx:Validator id="reqValid" required="true" source="{fname}" property="text" valid="handleValid(event)" invalid="handleValid(event);" /> </fx:Declarations> <s:Panel title="Validator Example" width="75%" height="75%" horizontalCenter="0" verticalCenter="0"> <mx:Form left="10" right="10" top="10" bottom="10"> <mx:FormItem> <mx:Text width="100%" color="blue" text="Enter a value in the Name field before you can submit. The E-mail field is optional."/> </mx:FormItem> <mx:FormItem label="Name: " required="true"> <mx:TextInput id="fname" width="100%"/> </mx:FormItem> <mx:FormItem label="E-mail address: " required="false"> <mx:TextInput id="email" width="100%"/> </mx:FormItem> <mx:FormItem> <mx:Button id="submitButton" enabled="false" label="Submit" click="submitForm();"/> </mx:FormItem> </mx:Form> </s:Panel> </s:Application>
Wed Nov 21 2018, 06:34 AM -08:00