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mx.validators 

CreditCardValidator  - AS3 Flex

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Apêndices

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Tags MXML apenas
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Constantes de Implementação de Acessibilidade
Como Usar Exemplos do ActionScript
Aspectos jurídicos
Pacotemx.validators
Classepublic class CreditCardValidator
HerançaCreditCardValidator Inheritance Validator Inheritance EventDispatcher Inheritance Object

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

The CreditCardValidator class validates that a credit card number is the correct length, has the correct prefix, and passes the Luhn mod10 algorithm for the specified card type. This validator does not check whether the credit card is an actual active credit card account.

You can specify the input to the CreditCardValidator in two ways:

  • Use the cardNumberSource and cardNumberProperty properties to specify the location of the credit card number, and the cardTypeSource and cardTypeProperty properties to specify the location of the credit card type to validate.
  • Use the source and property properties to specify a single Object. The Object should contain the following fields:
    • cardType - Specifies the type of credit card being validated.

      In MXML, use the values: "American Express", "Diners Club", "Discover", "MasterCard", or "Visa".

      In ActionScript, use the static constants CreditCardValidatorCardType.MASTER_CARD, CreditCardValidatorCardType.VISA, or CreditCardValidatorCardType.AMERICAN_EXPRESS CreditCardValidatorCardType.DISCOVER, or CreditCardValidatorCardType.DINERS_CLUB.

    • cardNumber - Specifies the number of the card being validated.

To perform the validation, it uses the following guidelines:

Length:

  1. Visa: 13 or 16 digits
  2. MasterCard: 16 digits
  3. Discover: 16 digits
  4. American Express: 15 digits
  5. Diners Club: 14 digits or 16 digits if it also functions as MasterCard
Prefix:
  1. Visa: 4
  2. MasterCard: 51 to 55
  3. Discover: 6011
  4. American Express: 34 or 37
  5. Diners Club: 300 to 305, 36 or 38, 51 to 55

Sintaxe MXMLexpandedOcultar sintaxe MXML

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

  <mx:CreditCardValidator
    allowedFormatChars=" -" 
    cardNumberListener="Object specified by cardNumberSource"
    cardNumberProperty="No default"
    cardNumberSource="No default"
    cardTypeListener="Object specified by cardTypeSource"
    cardTypeProperty="No default"
    cardTypeSource="No default"
    invalidCharError= "Invalid characters in your credit card number. (Enter numbers only.)"
    invalidNumberError="The credit card number is invalid." 
    noNumError="No credit card number is specified."
    noTypeError="No credit card type is specified or the type is not valid." 
    wrongLengthError="Your credit card number contains the wrong number of digits." 
    wrongTypeError="Incorrect card type is specified." 
  />
  

Veja os exemplos

Elementos da API relacionados



Propriedades públicas
 PropriedadeDefinido por
  allowedFormatChars : String
The set of formatting characters allowed in the cardNumber field.
CreditCardValidator
  cardNumberListener : IValidatorListener
The component that listens for the validation result for the card number subfield.
CreditCardValidator
  cardNumberProperty : String
Name of the card number property to validate.
CreditCardValidator
  cardNumberSource : Object
Object that contains the value of the card number field.
CreditCardValidator
  cardTypeListener : IValidatorListener
The component that listens for the validation result for the card type subfield.
CreditCardValidator
  cardTypeProperty : String
Name of the card type property to validate.
CreditCardValidator
  cardTypeSource : Object
Object that contains the value of the card type field.
CreditCardValidator
 Inheritedconstructor : Object
Uma referência ao objeto de classe ou à função de construtor de uma determinada ocorrência de objeto.
Object
 Inheritedenabled : Boolean
Setting this value to false will stop the validator from performing validation.
Validator
  invalidCharError : String
Error message when the cardNumber field contains invalid characters.
CreditCardValidator
  invalidNumberError : String
Error message when the credit card number is invalid.
CreditCardValidator
 Inheritedlistener : Object
Specifies the validation listener.
Validator
  noNumError : String
Error message when the cardNumber field is empty.
CreditCardValidator
  noTypeError : String
Error message when the cardType field is blank.
CreditCardValidator
 Inheritedproperty : String
A String specifying the name of the property of the source object that contains the value to validate.
Validator
 Inheritedrequired : Boolean = true
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
 Inheritedtrigger : IEventDispatcher
Specifies the component generating the event that triggers the validator.
Validator
 InheritedtriggerEvent : String
Specifies the event that triggers the validation.
Validator
  wrongLengthError : String
Error message when the cardNumber field contains the wrong number of digits for the specified credit card type.
CreditCardValidator
  wrongTypeError : String
Error message the cardType field contains an invalid credit card type.
CreditCardValidator
Propriedades protegidas
 PropriedadeDefinido por
 InheritedactualListeners : Array
[somente leitura] Contains an Array of listener objects, if any, or the source object.
Validator
 InheritedactualTrigger : IEventDispatcher
[somente leitura] Contains the trigger object, if any, or the source object.
Validator
 InheritedresourceManager : IResourceManager
[somente leitura] A reference to the object which manages all of the application's localized resources.
Validator
 InheritedsubFields : Array
An Array of Strings containing the names for the properties contained in the value Object passed to the validate() method.
Validator
Métodos públicos
 MétodoDefinido por
  
Constructor.
CreditCardValidator
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registra um objeto de ouvinte de evento em um objeto EventDispatcher, de forma que o ouvinte receba a notificação de um evento.
EventDispatcher
 Inherited
Envia um evento para o fluxo de eventos.
EventDispatcher
 Inherited
Verifica se o objeto EventDispatcher tem ouvintes registrados para um tipo específico de evento.
EventDispatcher
 Inherited
Indica se um objeto tem uma propriedade especificada definida.
Object
 Inherited
Called automatically by the MXML compiler when the Validator is created using an MXML tag.
Validator
 Inherited
Indica se uma ocorrência da classe Object está na cadeia de protótipos do objeto especificado como o parâmetro.
Object
 Inherited
Indica se a propriedade especificada existe e é enumerável.
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Remove um ouvinte do objeto EventDispatcher.
EventDispatcher
 Inherited
Define a disponibilidade de uma propriedade dinâmica para operações de repetição.
Object
 Inherited
Retorna a representação da string deste objeto, formatado segundo as convenções específicas para a localidade.
Object
 Inherited
Retorna a representação de string do objeto especificado.
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
[estático] Invokes all the validators in the validators Array.
Validator
  
[estático] Convenience method for calling a validator.
CreditCardValidator
 Inherited
Retorna o valor primitivo do objeto especificado.
Object
 Inherited
Verifica se um ouvinte de evento está registrado nesse objeto EventDispatcher ou em qualquer um de seus ancestrais para o tipo de evento especificado.
EventDispatcher
Métodos protegidos
 MétodoDefinido por
 Inherited
Sets up all of the listeners for the valid and invalid events dispatched from the validator.
Validator
  
[substituir] Override of the base class doValidation() method to validate a credit card number.
CreditCardValidator
 Inherited
Returns the Object to validate.
Validator
 Inherited
Returns a ValidationResultEvent from the Array of error results.
Validator
 Inherited
Returns true if value is not null.
Validator
 Inherited
Disconnects all of the listeners for the valid and invalid events dispatched from the validator.
Validator
 Inherited
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
Eventos
 Evento Resumo Definido por
 Inherited[transmissão de evento] Despachado quando o Flash Player ou o aplicativo do AIR ganha o foco do sistema operacional e está se tornando inativo.EventDispatcher
 Inherited[transmissão de evento] Despachado quando o Flash Player ou o aplicativo do AIR perde o foco do sistema operacional e está se tornando inativo.EventDispatcher
 InheritedDispatched when validation fails.Validator
 InheritedDispatched when validation succeeds.Validator
Detalhes da propriedade

allowedFormatChars

propriedade
allowedFormatChars:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

The set of formatting characters allowed in the cardNumber field.

O valor padrão é " -" (space and dash).



Implementação
    public function get allowedFormatChars():String
    public function set allowedFormatChars(value:String):void

cardNumberListener

propriedade 
cardNumberListener:IValidatorListener

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

The component that listens for the validation result for the card number subfield. If none is specified, use the value specified to the cardNumberSource property.



Implementação
    public function get cardNumberListener():IValidatorListener
    public function set cardNumberListener(value:IValidatorListener):void

cardNumberProperty

propriedade 
public var cardNumberProperty:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Name of the card number property to validate. This attribute is optional, but if you specify the cardNumberSource property, you should also set this property.

cardNumberSource

propriedade 
cardNumberSource:Object

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Object that contains the value of the card number field. If you specify a value for this property, you must also specify a value for the cardNumberProperty property. Do not use this property if you set the source and property properties.



Implementação
    public function get cardNumberSource():Object
    public function set cardNumberSource(value:Object):void

cardTypeListener

propriedade 
cardTypeListener:IValidatorListener

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

The component that listens for the validation result for the card type subfield. If none is specified, then use the value specified to the cardTypeSource property.



Implementação
    public function get cardTypeListener():IValidatorListener
    public function set cardTypeListener(value:IValidatorListener):void

cardTypeProperty

propriedade 
public var cardTypeProperty:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Name of the card type property to validate. This attribute is optional, but if you specify the cardTypeSource property, you should also set this property.

In MXML, valid values are:

  • "American Express"
  • "Diners Club"
  • "Discover"
  • "MasterCard"
  • "Visa"

In ActionScript, you can use the following constants to set this property:

CreditCardValidatorCardType.AMERICAN_EXPRESS, CreditCardValidatorCardType.DINERS_CLUB, CreditCardValidatorCardType.DISCOVER, CreditCardValidatorCardType.MASTER_CARD, and CreditCardValidatorCardType.VISA.

Elementos da API relacionados

cardTypeSource

propriedade 
cardTypeSource:Object

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Object that contains the value of the card type field. If you specify a value for this property, you must also specify a value for the cardTypeProperty property. Do not use this property if you set the source and property properties.



Implementação
    public function get cardTypeSource():Object
    public function set cardTypeSource(value:Object):void

invalidCharError

propriedade 
invalidCharError:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Error message when the cardNumber field contains invalid characters.

O valor padrão é "Invalid characters in your credit card number. (Enter numbers only.)".



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

invalidNumberError

propriedade 
invalidNumberError:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Error message when the credit card number is invalid.

O valor padrão é "The credit card number is invalid.".



Implementação
    public function get invalidNumberError():String
    public function set invalidNumberError(value:String):void

noNumError

propriedade 
noNumError:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Error message when the cardNumber field is empty.

O valor padrão é "No credit card number is specified.".



Implementação
    public function get noNumError():String
    public function set noNumError(value:String):void

noTypeError

propriedade 
noTypeError:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Error message when the cardType field is blank.

O valor padrão é "No credit card type is specified or the type is not valid.".



Implementação
    public function get noTypeError():String
    public function set noTypeError(value:String):void

wrongLengthError

propriedade 
wrongLengthError:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Error message when the cardNumber field contains the wrong number of digits for the specified credit card type.

O valor padrão é "Your credit card number contains the wrong number of digits.".



Implementação
    public function get wrongLengthError():String
    public function set wrongLengthError(value:String):void

wrongTypeError

propriedade 
wrongTypeError:String

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Error message the cardType field contains an invalid credit card type. You should use the predefined constants for the cardType field: CreditCardValidatorCardType.MASTER_CARD, CreditCardValidatorCardType.VISA, CreditCardValidatorCardType.AMERICAN_EXPRESS, CreditCardValidatorCardType.DISCOVER, or CreditCardValidatorCardType.DINERS_CLUB.

O valor padrão é "Incorrect card type is specified.".



Implementação
    public function get wrongTypeError():String
    public function set wrongTypeError(value:String):void
Detalhes do construtor

CreditCardValidator

()Construtor
public function CreditCardValidator()

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Constructor.

Detalhes do método

doValidation

()método
override protected function doValidation(value:Object):Array

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Override of the base class doValidation() method to validate a credit card number.

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.

Parâmetros

value:Object — an Object to validate.

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

validateCreditCard

()método 
public static function validateCreditCard(validator:CreditCardValidator, value:Object, baseField:String):Array

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 3
Versões de runtime: Flash Player 9, AIR 1.1

Convenience method for calling a validator. Each of the standard Flex validators has a similar convenience method.

Parâmetros

validator:CreditCardValidator — The CreditCardValidator instance.
 
value:Object — A field to validate, which must contain the following fields:
  • cardType - Specifies the type of credit card being validated. Use the static constants CreditCardValidatorCardType.MASTER_CARD, CreditCardValidatorCardType.VISA, CreditCardValidatorCardType.AMERICAN_EXPRESS, CreditCardValidatorCardType.DISCOVER, or CreditCardValidatorCardType.DINERS_CLUB.
  • cardNumber - Specifies the number of the card being validated.
 
baseField:String — Text representation of the subfield specified in the value parameter. For example, if the value parameter specifies value.date, the baseField value is "date".

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

Elementos da API relacionados

CreditCardValidatorExample.mxml
<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the CreditCardValidator. -->
<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>
        <!-- Define model for the credit card data. -->
        <fx:Model id="creditcard">
            <card>
                <cardType>{cardTypeCombo.selectedItem.data}</cardType>
                <cardNumber>{cardNumberInput.text}</cardNumber>
            </card>
        </fx:Model>

        <mx:CreditCardValidator id="ccV" 
                cardTypeSource="{creditcard}" cardTypeProperty="cardType"
                cardNumberSource="{creditcard}" cardNumberProperty="cardNumber"
                trigger="{myButton}" triggerEvent="click"
                cardTypeListener="{cardTypeCombo}"
                cardNumberListener="{cardNumberInput}"
                valid="Alert.show('Validation Succeeded!');"/>
    </fx:Declarations>

    <s:Panel title="CreditCardValidator Example"
            width="75%" height="75%"
            horizontalCenter="0" verticalCenter="0">
        <mx:Form id="creditCardForm" left="10" right="10" top="10" bottom="10">
            <mx:FormItem label="Card Type">
                <mx:ComboBox id="cardTypeCombo">
                    <mx:dataProvider>
                        <fx:Object label="American Express" data="American Express"/>
                        <fx:Object label="Diners Club" data="Diners Club"/>
                        <fx:Object label="Discover" data="Discover"/>
                        <fx:Object label="MasterCard" data="MasterCard"/>
                        <fx:Object label="Visa" data="Visa"/>
                    </mx:dataProvider>
                </mx:ComboBox>
            </mx:FormItem>
            <mx:FormItem label="Credit Card Number">
                <s:TextInput id="cardNumberInput"/>
            </mx:FormItem>
            <mx:FormItem>
                <s:Button id="myButton" label="Check Credit"/>
            </mx:FormItem>
        </mx:Form>
    </s:Panel>

</s:Application>




[ X ]Por que inglês?
O conteúdo na Referência do ActionScript 3.0 aparece em inglês

Nem todas as partes da Referência do ActionScript 3.0 estão traduzidas em todos os idiomas. Quando um elemento de um idioma não está traduzido, ele é exibido em inglês. Por exemplo, a classe ga.controls.HelpBox não está traduzida em nenhum idioma. Por isso, na versão da referência em português do Brasil, a classe ga.controls.HelpBox é exibida em inglês.