EmailValidator

套件	mx.validators
類別	public class EmailValidator
繼承	EmailValidator Validator EventDispatcher Object

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

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 語法

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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."
  />

檢視範例

公用屬性

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	屬性		定義自
		constructor : Object 類別物件的參照或是特定物件實體的建構函數。	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

保護屬性

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	屬性		定義自
		actualListeners : Array [唯讀] Contains an Array of listener objects, if any, or the source object.	Validator
		actualTrigger : IEventDispatcher [唯讀] Contains the trigger object, if any, or the source object.	Validator
		resourceManager : IResourceManager [唯讀] 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

公用方法

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	方法		定義自
		EmailValidator() Constructor.	EmailValidator
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void 會在 EventDispatcher 物件註冊事件偵聽程式，以便讓偵聽程式收到事件的通知。	EventDispatcher
		dispatchEvent(event:Event):Boolean 會將事件傳送到事件流程。	EventDispatcher
		hasEventListener(type:String):Boolean 會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。	EventDispatcher
		hasOwnProperty(name:String):Boolean 指出物件是否有已定義的指定屬性。	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 指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。	Object
		propertyIsEnumerable(name:String):Boolean 指出指定的屬性是否存在，以及是否可列舉。	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void 會從 EventDispatcher 物件移除偵聽程式。	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void 為迴圈作業設定動態屬性的可用性。	Object
		toLocaleString():String 傳回代表此物件的字串，根據地區特定慣例進行格式化。	Object
		toString():String 會傳回指定之物件的字串形式。	Object
		validate(value:Object = null, suppressEvents:Boolean = false):ValidationResultEvent Performs validation and optionally notifies the listeners of the result.	Validator
		validateAll(validators:Array):Array [靜態] Invokes all the validators in the validators Array.	Validator
		validateEmail(validator:EmailValidator, value:Object, baseField:String):Array [靜態] Convenience method for calling a validator from within a custom validation function.	EmailValidator
		valueOf():Object 會傳回指定之物件的基本值。	Object
		willTrigger(type:String):Boolean 檢查此 EventDispatcher 物件是否已註冊事件偵聽程式，或者此物件的任何祖系已為特定事件類型註冊事件偵聽程式。	EventDispatcher

保護方法

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	方法		定義自
		addListenerHandler():void Sets up all of the listeners for the valid and invalid events dispatched from the validator.	Validator
		doValidation(value:Object):Array [覆寫] 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

事件

按一下以瞭解事件的詳細資訊

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	摘要	定義自
activate	[廣播事件] 當 Flash Player 或 AIR 應用程式取得作業系統焦點並成為作用中時傳送。	EventDispatcher
deactivate	[廣播事件] 當 Flash Player 或 AIR 應用程式失去作業系統焦點並成為非作用中時傳送。	EventDispatcher
invalid	Dispatched when validation fails.	Validator
valid	Dispatched when validation succeeds.	Validator

保護常數

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	常數		定義自

屬性詳細資訊

invalidCharError

屬性

invalidCharError:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

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

預設值為 "Your e-mail address contains invalid characters."。

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

invalidDomainError

屬性

invalidDomainError:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

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

預設值為 "The domain in your e-mail address is incorrectly formatted."。

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

invalidIPDomainError

屬性

invalidIPDomainError:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

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

預設值為 "The IP domain in your e-mail address is incorrectly formatted."。

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

invalidPeriodsInDomainError

屬性

invalidPeriodsInDomainError:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

Error message when there are continuous periods in the domain.

預設值為 "The domain in your e-mail address has continous periods."。

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

missingAtSignError

屬性

missingAtSignError:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

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

預設值為 "An at sign (&64;) is missing in your e-mail address."。

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

missingPeriodInDomainError

屬性

missingPeriodInDomainError:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

Error message when there is no period in the domain.

預設值為 "The domain in your e-mail address is missing a period."。

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

missingUsernameError

屬性

missingUsernameError:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

Error message when there is no username.

預設值為 "The username in your e-mail address is missing."。

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

tooManyAtSignsError

屬性

tooManyAtSignsError:String

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

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.

預設值為 "Your e-mail address contains too many &64; characters."。

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

建構函式詳細資料

()

建構函式

public function EmailValidator()

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

Constructor.

方法詳細資訊

doValidation

()

方法

override protected function doValidation(value:Object):Array

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

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.

參數

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

傳回值

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

validateEmail

()

方法

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

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

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.

參數

	`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".

傳回值

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

相關 API 元素

mx.validators.ValidationResult

範例如何使用本範例

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

套件x

語言元素

附錄

套件 mx.validators

invalidCharError

invalidDomainError

invalidIPDomainError

invalidPeriodsInDomainError

missingAtSignError

missingPeriodInDomainError

missingUsernameError

tooManyAtSignsError

EmailValidator

doValidation

validateEmail