EmailValidator

Package	mx.validators
Class	public class EmailValidator
Inheritance	EmailValidator Validator EventDispatcher Object

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The EmailValidator class validates that a String has a single @ sign, a period in the domain name and that the top-level domain suffix has two, three, four, or six characters. IP domain names are valid if they are enclosed in square brackets. The validator does not check whether the domain and user name actually exist.

You can use IP domain names if they are enclosed in square brackets; for example, myname@[206.132.22.1]. You can use individual IP numbers from 0 to 255.

MXML Syntax expanded

Hide MXML Syntax

The <mx:EmailValidator> tag inherits all of the tag attributes of its superclass, and adds the following tag attributes:

  <mx:EmailValidator 
    invalidCharError="Your e-mail address contains invalid characters."
    invalidDomainError= "The domain in your e-mail address is incorrectly formatted." 
    invalidIPDomainError="The IP domain in your e-mail address is incorrectly formatted." 
    invalidPeriodsInDomainError="The domain in your e-mail address has consecutive periods." 
    missingAtSignError="An at sign (&64;) is missing in your e-mail address."
    missingPeriodInDomainError="The domain in your e-mail address is missing a period." 
    missingUsernameError="The username in your e-mail address is missing." 
    tooManyAtSignsError="Your e-mail address contains too many &64; characters."
  />

View the examples

More examples

Enabling and disabling a validator
Validating e-mail addresses

Learn more

Validating data
About the source and property properties
About triggering validation
Triggering validation by using events
Triggering validation programmatically
Validating required fields
General guidelines for validation
Working with validation errors
Working with validation events

Public Properties

	Property		Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		enabled : Boolean Setting this value to false will stop the validator from performing validation.	Validator
		invalidCharError : String Error message when there are invalid characters in the e-mail address.	EmailValidator
		invalidDomainError : String Error message when the suffix (the top level domain) is not 2, 3, 4 or 6 characters long.	EmailValidator
		invalidIPDomainError : String Error message when the IP domain is invalid.	EmailValidator
		invalidPeriodsInDomainError : String Error message when there are continuous periods in the domain.	EmailValidator
		listener : Object Specifies the validation listener.	Validator
		missingAtSignError : String Error message when there is no at sign in the email address.	EmailValidator
		missingPeriodInDomainError : String Error message when there is no period in the domain.	EmailValidator
		missingUsernameError : String Error message when there is no username.	EmailValidator
		property : String A String specifying the name of the property of the source object that contains the value to validate.	Validator
		required : Boolean = true If true, specifies that a missing or empty value causes a validation error.	Validator
		requiredFieldError : String Error message when a value is missing and the required property is true.	Validator
		source : Object Specifies the object containing the property to validate.	Validator
		tooManyAtSignsError : String Error message when there is more than one at sign in the e-mail address.	EmailValidator
		trigger : IEventDispatcher Specifies the component generating the event that triggers the validator.	Validator
		triggerEvent : String Specifies the event that triggers the validation.	Validator

Protected Properties

	Property		Defined By
		actualListeners : Array [read-only] Contains an Array of listener objects, if any, or the source object.	Validator
		actualTrigger : IEventDispatcher [read-only] Contains the trigger object, if any, or the source object.	Validator
		resourceManager : IResourceManager [read-only] A reference to the object which manages all of the application's localized resources.	Validator
		subFields : Array An Array of Strings containing the names for the properties contained in the value Object passed to the validate() method.	Validator

Public Methods

	Method		Defined By
		EmailValidator() Constructor.	EmailValidator
		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
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		initialized(document:Object, id:String):void Called automatically by the MXML compiler when the Validator is created using an MXML tag.	Validator
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object.	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns the string representation of the specified object.	Object
		validate(value:Object = null, suppressEvents:Boolean = false):ValidationResultEvent Performs validation and optionally notifies the listeners of the result.	Validator
		validateAll(validators:Array):Array [static] Invokes all the validators in the validators Array.	Validator
		validateEmail(validator:EmailValidator, value:Object, baseField:String):Array [static] Convenience method for calling a validator from within a custom validation function.	EmailValidator
		valueOf():Object Returns the primitive value of the specified object.	Object
		willTrigger(type:String):Boolean 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
		addListenerHandler():void Sets up all of the listeners for the valid and invalid events dispatched from the validator.	Validator
		doValidation(value:Object):Array [override] Override of the base class doValidation() method to validate an e-mail address.	EmailValidator
		getValueFromSource():Object Returns the Object to validate.	Validator
		handleResults(errorResults:Array):ValidationResultEvent Returns a ValidationResultEvent from the Array of error results.	Validator
		isRealValue(value:Object):Boolean Returns true if value is not null.	Validator
		removeListenerHandler():void Disconnects all of the listeners for the valid and invalid events dispatched from the validator.	Validator
		resourcesChanged():void This method is called when a Validator is constructed, and again whenever the ResourceManager dispatches a "change" Event to indicate that the localized resources have changed in some way.	Validator

Events

Click for more information on events

	Summary	Defined By
activate	[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.	EventDispatcher
deactivate	[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.	EventDispatcher
invalid	Dispatched when validation fails.	Validator
valid	Dispatched when validation succeeds.	Validator

Protected Constants

	Constant		Defined By

Property Detail

invalidCharError

property

invalidCharError:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Error message when there are invalid characters in the e-mail address.

The default value is "Your e-mail address contains invalid characters.".

Implementation
public function get invalidCharError():String
public function set invalidCharError(value:String):void

invalidDomainError

property

invalidDomainError:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Error message when the suffix (the top level domain) is not 2, 3, 4 or 6 characters long.

The default value is "The domain in your e-mail address is incorrectly formatted.".

Implementation
public function get invalidDomainError():String
public function set invalidDomainError(value:String):void

invalidIPDomainError

property

invalidIPDomainError:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Error message when the IP domain is invalid. The IP domain must be enclosed by square brackets.

The default value is "The IP domain in your e-mail address is incorrectly formatted.".

Implementation
public function get invalidIPDomainError():String
public function set invalidIPDomainError(value:String):void

invalidPeriodsInDomainError

property

invalidPeriodsInDomainError:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Error message when there are continuous periods in the domain.

The default value is "The domain in your e-mail address has continous periods.".

Implementation
public function get invalidPeriodsInDomainError():String
public function set invalidPeriodsInDomainError(value:String):void

missingAtSignError

property

missingAtSignError:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Error message when there is no at sign in the email address.

The default value is "An at sign (&64;) is missing in your e-mail address.".

Implementation
public function get missingAtSignError():String
public function set missingAtSignError(value:String):void

missingPeriodInDomainError

property

missingPeriodInDomainError:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Error message when there is no period in the domain.

The default value is "The domain in your e-mail address is missing a period.".

Implementation
public function get missingPeriodInDomainError():String
public function set missingPeriodInDomainError(value:String):void

missingUsernameError

property

missingUsernameError:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Error message when there is no username.

The default value is "The username in your e-mail address is missing.".

Implementation
public function get missingUsernameError():String
public function set missingUsernameError(value:String):void

tooManyAtSignsError

property

tooManyAtSignsError:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Error message when there is more than one at sign in the e-mail address. This property is optional.

The default value is "Your e-mail address contains too many &64; characters.".

Implementation
public function get tooManyAtSignsError():String
public function set tooManyAtSignsError(value:String):void

Constructor Detail

EmailValidator

()

Constructor

public function EmailValidator()

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Constructor.

Method Detail

doValidation

()

method

override protected function doValidation(value:Object):Array

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Override of the base class doValidation() method to validate an e-mail address.

You do not call this method directly; Flex calls it as part of performing a validation. If you create a custom Validator class, you must implement this method.

Parameters

value:Object — Either a String or an Object to validate.

Returns

Array — An Array of ValidationResult objects, with one ValidationResult object for each field examined by the validator.

validateEmail

()

method

public static function validateEmail(validator:EmailValidator, value:Object, baseField:String):Array

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Convenience method for calling a validator from within a custom validation function. Each of the standard Flex validators has a similar convenience method.

Parameters

	`validator:EmailValidator` — The EmailValidator instance.

	`value:Object` — A field to validate.

	`baseField:String` — Text representation of the subfield specified in the value parameter. For example, if the `value` parameter specifies value.email, the `baseField` value is "email".

Returns

Array — An Array of ValidationResult objects, with one ValidationResult object for each field examined by the validator.

Related API Elements

mx.validators.ValidationResult

Examples How to use this example

EmailValidatorExample.mxml

<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the EmailValidator. -->
<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>
        import mx.controls.Alert;
    </fx:Script>

    <fx:Declarations>
        <mx:EmailValidator source="{email}" property="text" 
                trigger="{myButton}" triggerEvent="click"
                valid="Alert.show('Validation Succeeded!');"/>
    </fx:Declarations>

    <s:Panel title="EmailValidator Example"
            width="75%" height="75%"
            horizontalCenter="0" verticalCenter="0">
        <mx:Form left="10" right="10" top="10" bottom="10">
            <mx:FormItem label="Enter an e-mail address: ">
                <s:TextInput id="email" width="100%"/>
            </mx:FormItem>
            <mx:FormItem >
                <s:Button id="myButton" label="Validate" />
            </mx:FormItem>
        </mx:Form>
    </s:Panel>

</s:Application>

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EmailValidator - AS3 Flex

Classes x

invalidCharError

invalidDomainError

invalidIPDomainError

invalidPeriodsInDomainError

missingAtSignError

missingPeriodInDomainError

missingUsernameError

tooManyAtSignsError

EmailValidator

doValidation

validateEmail