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mx.validators 

DateValidator  - AS3 Flex

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Elementos de linguagem

Constantes globais
Funções globais
Operadores
Instruções, palavras-chave e diretivas
Tipos especiais

Apêndices

Novidades
Erros do compilador
Avisos do compilador
Erros de runtime
Migrando para o ActionScript 3
Conjuntos de caracteres suportados
Tags MXML apenas
Elementos XML de movimento
Marcas de texto cronometradas
Lista de elementos deprecados
Constantes de Implementação de Acessibilidade
Como Usar Exemplos do ActionScript
Aspectos jurídicos
Pacotemx.validators
Classepublic class DateValidator
HerançaDateValidator 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 DateValidator class validates that a String, Date, or Object contains a proper date and matches a specified format. Users can enter a single digit or two digits for month, day, and year. By default, the validator ensures the following formats:
  • The month is between 1 and 12 (or 0-11 for Date objects)
  • The day is between 1 and 31
  • The year is a number

You can specify the date in the DateValidator class in two ways:

  • Single String containing the date - Use the source and property properties to specify the String. The String can contain digits and the formatting characters specified by the allowedFormatChars property, which include the "/\-. " characters. By default, the input format of the date in a String field is "MM/DD/YYYY" where "MM" is the month, "DD" is the day, and "YYYY" is the year. You can use the inputFormat property to specify a different format.
  • Date object.
  • Object or multiple fields containing the day, month, and year. Use all of the following properties to specify the day, month, and year inputs: daySource, dayProperty, monthSource, monthProperty, yearSource, and yearProperty.

Sintaxe MXMLexpandedOcultar sintaxe MXML

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

  <mx:DateValidator 
    allowedFormatChars="/\-. " 
    dayListener="Object specified by daySource"
    dayProperty="No default"
    daySource="No default"
    formatError= "Configuration error: Incorrect formatting string." 
    inputFormat="MM/DD/YYYY" 
    invalidCharError="The date contains invalid characters."
    monthListener="Object specified by monthSource"
    monthProperty="No default"
    monthSource="No default"
    validateAsString="true|false"
    wrongDayError="Enter a valid day for the month."
    wrongLengthError="Type the date in the format inputFormat." 
    wrongMonthError="Enter a month between 1 and 12."
    wrongYearError="Enter a year between 0 and 9999."
    yearListener="Object specified by yearSource"
    yearProperty="No default"
    yearSource="No default"
  />
  

Veja os exemplos



Propriedades públicas
 PropriedadeDefinido por
  allowedFormatChars : String
The set of formatting characters allowed for separating the month, day, and year values.
DateValidator
 Inheritedconstructor : Object
Uma referência ao objeto de classe ou à função de construtor de uma determinada ocorrência de objeto.
Object
  dayListener : IValidatorListener
The component that listens for the validation result for the day subfield.
DateValidator
  dayProperty : String
Name of the day property to validate.
DateValidator
  daySource : Object
Object that contains the value of the day field.
DateValidator
 Inheritedenabled : Boolean
Setting this value to false will stop the validator from performing validation.
Validator
  formatError : String
Error message when the inputFormat property is not in the correct format.
DateValidator
  inputFormat : String
The date format to validate the value against.
DateValidator
  invalidCharError : String
Error message when there are invalid characters in the date.
DateValidator
 Inheritedlistener : Object
Specifies the validation listener.
Validator
  monthListener : IValidatorListener
The component that listens for the validation result for the month subfield.
DateValidator
  monthProperty : String
Name of the month property to validate.
DateValidator
  monthSource : Object
Object that contains the value of the month field.
DateValidator
 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
  validateAsString : Object
Determines how to validate the value.
DateValidator
  wrongDayError : String
Error message when the day is invalid.
DateValidator
  wrongLengthError : String
Error message when the length of the date doesn't match that of the inputFormat property.
DateValidator
  wrongMonthError : String
Error message when the month is invalid.
DateValidator
  wrongYearError : String
Error message when the year is invalid.
DateValidator
  yearListener : IValidatorListener
The component that listens for the validation result for the year subfield.
DateValidator
  yearProperty : String
Name of the year property to validate.
DateValidator
  yearSource : Object
Object that contains the value of the year field.
DateValidator
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.
DateValidator
 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
  
validateDate(validator:DateValidator, value:Object, baseField:String):Array
[estático] Convenience method for calling a validator from within a custom validation function.
DateValidator
 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 date.
DateValidator
 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 for separating the month, day, and year values.

O valor padrão é "/\-. ".



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

dayListener

propriedade 
dayListener: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 day subfield. If none is specified, use the value specified for the daySource property.



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

dayProperty

propriedade 
public var dayProperty:String

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

Name of the day property to validate. This property is optional, but if you specify the daySource property, you should also set this property.

daySource

propriedade 
daySource: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 day field. If you specify a value for this property, you must also specify a value for the dayProperty property. Do not use this property if you set the source and property properties.



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

formatError

propriedade 
formatError: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 inputFormat property is not in the correct format.

O valor padrão é "Configuration error: Incorrect formatting string.".



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

inputFormat

propriedade 
inputFormat:String

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

The date format to validate the value against. "MM" is the month, "DD" is the day, and "YYYY" is the year. This String is case-sensitive.

O valor padrão é "MM/DD/YYYY".



Implementação
    public function get inputFormat():String
    public function set inputFormat(value:String):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 there are invalid characters in the date.

O valor padrão é "Invalid characters in your date.".



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

monthListener

propriedade 
monthListener: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 month subfield. If none is specified, use the value specified for the monthSource property.



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

monthProperty

propriedade 
public var monthProperty:String

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

Name of the month property to validate. This property is optional, but if you specify the monthSource property, you should also set this property.

monthSource

propriedade 
monthSource: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 month field. If you specify a value for this property, you must also specify a value for the monthProperty property. Do not use this property if you set the source and property properties.



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

validateAsString

propriedade 
validateAsString:Object

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

Determines how to validate the value. If set to true, the validator evaluates the value as a String, unless the value has a month, day, or year property. If false, the validator evaluates the value as a Date object.

O valor padrão é true.



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

wrongDayError

propriedade 
wrongDayError: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 day is invalid.

O valor padrão é "Enter a valid day for the month.".



Implementação
    public function get wrongDayError():String
    public function set wrongDayError(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 length of the date doesn't match that of the inputFormat property.

O valor padrão é "Type the date in the format inputFormat.".



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

wrongMonthError

propriedade 
wrongMonthError: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 month is invalid.

O valor padrão é "Enter a month between 1 and 12.".



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

wrongYearError

propriedade 
wrongYearError: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 year is invalid.

O valor padrão é "Enter a year between 0 and 9999.".



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

yearListener

propriedade 
yearListener: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 year subfield. If none is specified, use the value specified for the yearSource property.



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

yearProperty

propriedade 
public var yearProperty:String

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

Name of the year property to validate. This property is optional, but if you specify the yearSource property, you should also set this property.

yearSource

propriedade 
yearSource: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 year field. If you specify a value for this property, you must also specify a value for the yearProperty property. Do not use this property if you set the source and property properties.



Implementação
    public function get yearSource():Object
    public function set yearSource(value:Object):void
Detalhes do construtor

DateValidator

()Construtor
public function DateValidator()

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 date.

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 — Either a String or an Object to validate.

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

validateDate

()método 
public static function validateDate(validator:DateValidator, 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 from within a custom validation function. Each of the standard Flex validators has a similar convenience method.

Parâmetros

validator:DateValidator — The DateValidator 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.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

DateValidatorExample.mxml
<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the DateValidator. -->
<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>
        <fx:Model id="CheckModel">
            <dateInfo>
                <DOB>{dob.text}</DOB>
            </dateInfo>
        </fx:Model>

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

    <s:Panel title="DateValidator Example"
            width="75%" height="75%" 
            horizontalCenter="0" verticalCenter="0">
        <mx:Form left="10" right="10" top="10" bottom="10">
            <mx:FormItem label="Enter date of birth (mm/dd/yyyy): ">
                <s:TextInput id="dob" width="100%"/>
            </mx:FormItem>
            <mx:FormItem >
                <s:Button id="myButton" label="Validate" />
            </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.