CurrencyValidator

Pakket	mx.validators
Klasse	public class CurrencyValidator
Overerving	CurrencyValidator Validator EventDispatcher Object

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

spark.validators.CurrencyValidator

The CurrencyValidator class ensures that a String represents a valid currency expression. It can make sure the input falls within a given range (specified by minValue and maxValue), is non-negative (specified by allowNegative), and does not exceed the specified precision. The CurrencyValidator class correctly validates formatted and unformatted currency expressions, e.g., "$12,345.00" and "12345". You can customize the currencySymbol, alignSymbol, thousandsSeparator, and decimalSeparator properties for internationalization.

MXML-syntaxis expanded

MXML-syntaxis verbergen

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

  <mx:CurrencyValidator
    alignSymbol="left|right|any"
    allowNegative="true|false"
    currencySymbol="$"
    currencySymbolError="The currency symbol occurs in an invalid location."
    decimalPointCountError="The decimal separator can occur only once."
    decimalSeparator="."
    exceedsMaxError="The amount entered is too large."
    invalidCharError="The input contains invalid characters."
    invalidFormatCharsError="One of the formatting parameters is invalid."
    lowerThanMinError="The amount entered is too small."
    maxValue="NaN"
    minValue="NaN"
    negativeError="The amount may not be negative."
    precision="2"
    precisionError="The amount entered has too many digits beyond the decimal point."
    separationError="The thousands separator must be followed by three digits."
    thousandsSeparator=","
  />

Bekijk de voorbeelden

Verwante API-elementen

mx.validators.CurrencyValidatorAlignSymbol

Openbare eigenschappen

Overerfde openbare eigenschappen verbergen

Overerfde openbare eigenschappen weergeven

	Eigenschap		Gedefinieerd door
		alignSymbol : String Specifies the alignment of the currencySymbol relative to the rest of the expression.	CurrencyValidator
		allowNegative : Object Specifies whether negative numbers are permitted.	CurrencyValidator
		constructor : Object Verwijzing naar het klasseobject of de constructorfunctie van een bepaalde objectinstantie.	Object
		currencySymbol : String The character String used to specify the currency symbol, such as "$", "R$", or "£".	CurrencyValidator
		currencySymbolError : String Error message when the currency symbol, defined by currencySymbol, is in the wrong location.	CurrencyValidator
		decimalPointCountError : String Error message when the decimal separator character occurs more than once.	CurrencyValidator
		decimalSeparator : String The character used to separate the whole from the fractional part of the number.	CurrencyValidator
		enabled : Boolean Setting this value to false will stop the validator from performing validation.	Validator
		exceedsMaxError : String Error message when the value is greater than maxValue.	CurrencyValidator
		invalidCharError : String Error message when the currency contains invalid characters.	CurrencyValidator
		invalidFormatCharsError : String Error message when the value contains an invalid formatting character.	CurrencyValidator
		listener : Object Specifies the validation listener.	Validator
		lowerThanMinError : String Error message when the value is less than minValue.	CurrencyValidator
		maxValue : Object Maximum value for a valid number.	CurrencyValidator
		minValue : Object Minimum value for a valid number.	CurrencyValidator
		negativeError : String Error message when the value is negative and the allowNegative property is false.	CurrencyValidator
		precision : Object The maximum number of digits allowed to follow the decimal point.	CurrencyValidator
		precisionError : String Error message when the value has a precision that exceeds the value defined by the precision property.	CurrencyValidator
		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
		separationError : String Error message when the thousands separator is incorrectly placed.	CurrencyValidator
		source : Object Specifies the object containing the property to validate.	Validator
		thousandsSeparator : String The character used to separate thousands.	CurrencyValidator
		trigger : IEventDispatcher Specifies the component generating the event that triggers the validator.	Validator
		triggerEvent : String Specifies the event that triggers the validation.	Validator

Beschermde eigenschappen

Overerfde beschermde eigenschappen verbergen

Overerfde beschermde eigenschappen weergeven

	Eigenschap		Gedefinieerd door
		actualListeners : Array [alleen-lezen] Contains an Array of listener objects, if any, or the source object.	Validator
		actualTrigger : IEventDispatcher [alleen-lezen] Contains the trigger object, if any, or the source object.	Validator
		resourceManager : IResourceManager [alleen-lezen] 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

Openbare methoden

Overerfde openbare methoden verbergen

Overerfde openbare methoden weergeven

	Methode		Gedefinieerd door
		CurrencyValidator() Constructor.	CurrencyValidator
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registreert een gebeurtenislistenerobject bij een object EventDispatcher, zodat de listener een melding van een gebeurtenis ontvangt.	EventDispatcher
		dispatchEvent(event:Event):Boolean Verzendt een gebeurtenis naar de gebeurtenisstroom.	EventDispatcher
		hasEventListener(type:String):Boolean Controleert of het object EventDispatcher listeners heeft geregistreerd voor een specifiek type gebeurtenis.	EventDispatcher
		hasOwnProperty(name:String):Boolean Geeft aan of voor een object een opgegeven eigenschap is gedefinieerd.	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 Geeft aan of een instantie van de klasse Object zich in de prototypeketen van het object bevindt dat als parameter is opgegeven.	Object
		propertyIsEnumerable(name:String):Boolean Geeft aan of de opgegeven eigenschap bestaat en kan worden opgesomd.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Verwijdert een listener uit het object EventDispatcher.	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Stelt de beschikbaarheid van een dynamische eigenschap voor lusbewerkingen in.	Object
		toLocaleString():String Geeft de tekenreeksweergave van dit object weer, geformatteerd volgens de locatiespecifieke conventies.	Object
		toString():String Retourneert een tekenreeksrepresentatie van het opgegeven 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 [statisch] Invokes all the validators in the validators Array.	Validator
		validateCurrency(validator:CurrencyValidator, value:Object, baseField:String):Array [statisch] Convenience method for calling a validator.	CurrencyValidator
		valueOf():Object Retourneert de primitieve waarde van het opgegeven object.	Object
		willTrigger(type:String):Boolean Controleert of een gebeurtenislistener is geregistreerd bij dit object EventDispatcher of een van de voorouders voor het opgegeven type gebeurtenis.	EventDispatcher

Beschermde methoden

Overerfde beschermde methoden verbergen

Overerfde beschermde methoden weergeven

	Methode		Gedefinieerd door
		addListenerHandler():void Sets up all of the listeners for the valid and invalid events dispatched from the validator.	Validator
		doValidation(value:Object):Array [overschrijven] Override of the base class doValidation() method to validate a currency expression.	CurrencyValidator
		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

Gebeurtenissen

Klik voor meer informatie over gebeurtenissen.

Overerfde gebeurtenissen verbergen

Overerfde gebeurtenissen weergeven

	Overzicht	Gedefinieerd door
activate	[uitgezonden gebeurtenis] Wordt verzonden wanneer Flash Player of de AIR-toepassing de besturingssysteemfocus krijgt en actief wordt.	EventDispatcher
deactivate	[uitgezonden gebeurtenis] Wordt verzonden wanneer Flash Player of de AIR-toepassing de systeemfocus verliest en inactief wordt.	EventDispatcher
invalid	Dispatched when validation fails.	Validator
valid	Dispatched when validation succeeds.	Validator

Beschermde constanten

Overerfde beschermde constanten verbergen

Overerfde beschermde constanten weergeven

	Constante		Gedefinieerd door

Eigenschapdetails

alignSymbol

eigenschap

alignSymbol:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Specifies the alignment of the currencySymbol relative to the rest of the expression. Acceptable values in ActionScript are CurrencyValidatorAlignSymbol.LEFT, CurrencyValidatorAlignSymbol.RIGHT, and CurrencyValidatorAlignSymbol.ANY. Acceptable values in MXML are "left", "right", and "any".

De standaardwaarde is CurrencyValidatorAlignSymbol.LEFT.

Implementatie
public function get alignSymbol():String
public function set alignSymbol(value:String):void

Verwante API-elementen

mx.validators.CurrencyValidatorAlignSymbol

allowNegative

eigenschap

allowNegative:Object

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Specifies whether negative numbers are permitted. Can be true or false.

De standaardwaarde is true.

Implementatie
public function get allowNegative():Object
public function set allowNegative(value:Object):void

currencySymbol

eigenschap

currencySymbol:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

The character String used to specify the currency symbol, such as "$", "R$", or "£". Cannot be a digit and must be distinct from the thousandsSeparator and the decimalSeparator.

De standaardwaarde is "$".

Implementatie
public function get currencySymbol():String
public function set currencySymbol(value:String):void

currencySymbolError

eigenschap

currencySymbolError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the currency symbol, defined by currencySymbol, is in the wrong location.

De standaardwaarde is "The currency symbol occurs in an invalid location.".

Implementatie
public function get currencySymbolError():String
public function set currencySymbolError(value:String):void

decimalPointCountError

eigenschap

decimalPointCountError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the decimal separator character occurs more than once.

De standaardwaarde is "The decimal separator can only occur once.".

Implementatie
public function get decimalPointCountError():String
public function set decimalPointCountError(value:String):void

decimalSeparator

eigenschap

decimalSeparator:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

The character used to separate the whole from the fractional part of the number. Cannot be a digit and must be distinct from the currencySymbol and the thousandsSeparator.

De standaardwaarde is ".".

Implementatie
public function get decimalSeparator():String
public function set decimalSeparator(value:String):void

exceedsMaxError

eigenschap

exceedsMaxError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the value is greater than maxValue.

De standaardwaarde is "The amount entered is too large.".

Implementatie
public function get exceedsMaxError():String
public function set exceedsMaxError(value:String):void

invalidCharError

eigenschap

invalidCharError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the currency contains invalid characters.

De standaardwaarde is "The input contains invalid characters.".

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

invalidFormatCharsError

eigenschap

invalidFormatCharsError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the value contains an invalid formatting character.

De standaardwaarde is "One of the formatting parameters is invalid.".

Implementatie
public function get invalidFormatCharsError():String
public function set invalidFormatCharsError(value:String):void

lowerThanMinError

eigenschap

lowerThanMinError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the value is less than minValue.

De standaardwaarde is "The amount entered is too small.".

Implementatie
public function get lowerThanMinError():String
public function set lowerThanMinError(value:String):void

maxValue

eigenschap

maxValue:Object

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Maximum value for a valid number. A value of NaN means it is ignored.

De standaardwaarde is NaN.

Implementatie
public function get maxValue():Object
public function set maxValue(value:Object):void

minValue

eigenschap

minValue:Object

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Minimum value for a valid number. A value of NaN means it is ignored.

De standaardwaarde is NaN.

Implementatie
public function get minValue():Object
public function set minValue(value:Object):void

negativeError

eigenschap

negativeError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the value is negative and the allowNegative property is false.

De standaardwaarde is "The amount may not be negative.".

Implementatie
public function get negativeError():String
public function set negativeError(value:String):void

precision

eigenschap

precision:Object

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

The maximum number of digits allowed to follow the decimal point. Can be any non-negative integer. Note: Setting to 0 has the same effect as setting NumberValidator.domain to int. Setting it to -1, means it is ignored.

De standaardwaarde is 2.

Implementatie
public function get precision():Object
public function set precision(value:Object):void

precisionError

eigenschap

precisionError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the value has a precision that exceeds the value defined by the precision property.

De standaardwaarde is "The amount entered has too many digits beyond the decimal point.".

Implementatie
public function get precisionError():String
public function set precisionError(value:String):void

separationError

eigenschap

separationError:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Error message when the thousands separator is incorrectly placed.

De standaardwaarde is "The thousands separator must be followed by three digits.".

Implementatie
public function get separationError():String
public function set separationError(value:String):void

thousandsSeparator

eigenschap

thousandsSeparator:String

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

The character used to separate thousands. Cannot be a digit and must be distinct from the currencySymbol and the decimalSeparator.

De standaardwaarde is ",".

Implementatie
public function get thousandsSeparator():String
public function set thousandsSeparator(value:String):void

Constructordetails

()

Constructor

public function CurrencyValidator()

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Constructor.

Methodedetails

doValidation

()

methode

override protected function doValidation(value:Object):Array

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Override of the base class doValidation() method to validate a currency expression.

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 — Object to validate.

Geretourneerde waarde

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

validateCurrency

()

methode

public static function validateCurrency(validator:CurrencyValidator, value:Object, baseField:String):Array

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

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

Parameters

	`validator:CurrencyValidator` — The CurrencyValidator instance.

	`value:Object` — The object to validate.

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

Geretourneerde waarde

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

Verwante API-elementen

mx.validators.ValidationResult

Voorbeelden Hoe dit voorbeeld te gebruiken

CurrencyValidatorExample.mxml

<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the CurrencyValidator. -->
<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:CurrencyValidator source="{priceUS}" property="text" precision="2" 
                trigger="{myButton}" triggerEvent="click" 
                valid="Alert.show('Validation Succeeded!');"/>
    </fx:Declarations>

    <s:Panel title="CurrencyValidator Example"
            width="75%" height="75%"
            horizontalCenter="0" verticalCenter="0">
        <mx:Form left="10" right="10" top="10" bottom="10">
            <mx:FormItem label="Enter a U.S. dollar amount: ">
                 <s:TextInput id="priceUS" width="100%"/>
            </mx:FormItem>
            <mx:FormItem >
                <s:Button id="myButton" label="Validate"/>
            </mx:FormItem>
        </mx:Form>
    </s:Panel>

</s:Application>

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CurrencyValidator - AS3 Flex

Pakkettenx

Taalelementen

Bijlagen

Pakket mx.validators

alignSymbol

allowNegative

currencySymbol

currencySymbolError

decimalPointCountError

decimalSeparator

exceedsMaxError

invalidCharError

invalidFormatCharsError

lowerThanMinError

maxValue

minValue

negativeError

precision

precisionError

separationError

thousandsSeparator