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Packagemx.validators
Classpublic class EmailValidator
InheritanceEmailValidator Inheritance Validator Inheritance EventDispatcher Inheritance Object

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 Syntaxexpanded 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="Invalid characters in your email address." 
    invalidDomainError= "The domain in your email address is incorrectly formatted." 
    invalidIPDomainError="The IP domain in your email address is incorrectly formatted." 
    invalidPeriodsInDomainError="The domain in your email address has consecutive periods." 
    missingAtSignError="Missing an at character in your email address." 
    missingPeriodInDomainError="The domain in your email address is missing a period." 
    missingUsernameError="The username in your email address is missing." 
    tooManyAtSignsError="Too many at characters in your email address." 
  />
  

View the examples.



Public Properties
 PropertyDefined by
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 Inheritedenabled : 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
 Inheritedlistener : 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
 Inheritedproperty : String
A String specifying the name of the property of the source object that contains the value to validate.
Validator
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
 Inheritedrequired : Boolean
If true, specifies that a missing or empty value causes a validation error.
Validator
 InheritedrequiredFieldError : String
Error message when a value is missing and the required property is true.
Validator
 Inheritedsource : 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
 Inheritedtrigger : IEventDispatcher
Specifies the component generating the event that triggers the validator.
Validator
 InheritedtriggerEvent : String
Specifies the event that triggers the validation.
Validator
Protected Properties
 PropertyDefined by
 InheritedactualListeners : Array
Contains an Array of listener objects, if any, or the source object.
Validator
 InheritedactualTrigger : IEventDispatcher
Contains the trigger object, if any, or the source object.
Validator
 InheritedsubFields : Array
An Array of Strings containing the names for the properties contained in the value Object passed to the validate() method.
Validator
Public Methods
 MethodDefined by
  
Constructor.
EmailValidator
 Inherited
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
 Inherited
Dispatches an event into the event flow.
EventDispatcher
 Inherited
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
EventDispatcher
 Inherited
initialized(document:Object, id:String):void
Called automatically by the MXML compiler when the Validator is created using an MXML tag.
Validator
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
EventDispatcher
 Inherited
setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
validate(value:Object = null, suppressEvents:Boolean = false):ValidationResultEvent
Performs validation and optionally notifies the listeners of the result.
Validator
 Inherited
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
 Inherited
Returns the primitive value of the specified object.
Object
 Inherited
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
EventDispatcher
Protected Methods
 MethodDefined by
 Inherited
Sets up all of the listeners for the valid and invalid events dispatched from the validator.
Validator
  
Override of the base class doValidation() method to validate an e-mail address.
EmailValidator
 Inherited
Returns the Object to validate.
Validator
 Inherited
Returns a ValidationResultEvent from the Array of error results.
Validator
 Inherited
Returns true if value is null.
Validator
 Inherited
Disconnects all of the listeners for the valid and invalid events dispatched from the validator.
Validator
Events
 EventSummaryDefined by
 Inherited Dispatched when Flash Player gains operating system focus and becomes active.EventDispatcher
 Inherited Dispatched when Flash Player loses operating system focus and is becoming inactive.EventDispatcher
 Inherited Dispatched when validation fails.Validator
 Inherited Dispatched when validation succeeds.Validator
Protected Constants
 ConstantDefined by
 InheritedDECIMAL_DIGITS : String = "0123456789"
[static] A String containing the decimal digits 0 through 9.
Validator
 InheritedROMAN_LETTERS : String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
[static] A string containing the upper- and lower-case letters of the Roman alphabet ("A" through "Z" and "a" through "z").
Validator
Property detail
invalidCharErrorproperty
public var invalidCharError:String

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

The default value is "Invalid characters in your email address.".

invalidDomainErrorproperty 
public var invalidDomainError:String

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 email address is incorrectly formatted.".

invalidIPDomainErrorproperty 
public var invalidIPDomainError:String

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 email address is incorrectly formatted.".

invalidPeriodsInDomainErrorproperty 
public var invalidPeriodsInDomainError:String

Error message when there are continuous periods in the domain.

The default value is "The domain in your email address has continous periods.".

missingAtSignErrorproperty 
public var missingAtSignError:String

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

The default value is "Missing an at character in your email address.".

missingPeriodInDomainErrorproperty 
public var missingPeriodInDomainError:String

Error message when there is no period in the domain.

The default value is "The domain in your email address is missing a period.".

missingUsernameErrorproperty 
public var missingUsernameError:String

Error message when there is no username.

The default value is "The username in your email address is missing.".

tooManyAtSignsErrorproperty 
public var tooManyAtSignsError:String

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

The default value is "Too many at characters in your email address.".

Constructor detail
EmailValidator()constructor
public function EmailValidator()

Constructor.

Method detail
doValidation()method
protected override function doValidation(value:Object):Array

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

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.

See also

Examples
EmailValidatorExample
<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the EmailValidator. -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">

    <mx:Script>
        import mx.controls.Alert;
    </mx:Script>

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

   <mx:Panel title="EmailValidator Example" width="75%" height="75%" 
        paddingTop="10" paddingLeft="10" paddingRight="10" paddingBottom="10">

        <mx:Form>
            <mx:FormItem label="Enter an e-mail address: ">
                <mx:TextInput id="email" width="100%"/>
            </mx:FormItem>

            <mx:FormItem >
                <mx:Button id="myButton" label="Validate" />
            </mx:FormItem>
        </mx:Form>
    </mx:Panel>
 </mx:Application>





collected by Jimbob 2007.05