패키지 | mx.validators |
클래스 | public class StringValidator |
상속 | StringValidator Validator EventDispatcher Object |
언어 버전: | ActionScript 3.0 |
제품 버전: | Flex 3 |
런타임 버전: | Flash Player 9, AIR 1.1 |
The <mx:StringValidator>
tag
inherits all of the tag attributes of its superclass,
and add the following tag attributes:
<mx:StringValidator maxLength="NaN" minLength="NaN" tooLongError="This string is longer than the maximum allowed length. This must be less than {0} characters long." tooShortError="This string is shorter than the minimum allowed length. This must be at least {0} characters long." />
속성 | 정의 주체 | ||
---|---|---|---|
constructor : Object
지정된 객체 인스턴스의 클래스 객체 또는 생성자 함수에 대한 참조입니다. | Object | ||
enabled : Boolean
Setting this value to false will stop the validator
from performing validation. | Validator | ||
listener : Object
Specifies the validation listener. | Validator | ||
maxLength : Object
Maximum length for a valid String. | StringValidator | ||
minLength : Object
Minimum length for a valid String. | StringValidator | ||
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 | ||
tooLongError : String
Error message when the String is longer
than the maxLength property. | StringValidator | ||
tooShortError : String
Error message when the string is shorter
than the minLength property. | StringValidator | ||
trigger : IEventDispatcher
Specifies the component generating the event that triggers the validator. | Validator | ||
triggerEvent : String
Specifies the event that triggers the validation. | Validator |
메서드 | 정의 주체 | ||
---|---|---|---|
Constructor. | StringValidator | ||
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
리스너에서 이벤트 알림을 받을 수 있도록 EventDispatcher 객체에 이벤트 리스너 객체를 등록합니다. | EventDispatcher | ||
이벤트를 이벤트 흐름으로 전달합니다. | EventDispatcher | ||
EventDispatcher 객체에 특정 유형의 이벤트에 대한 리스너가 등록되어 있는지 여부를 확인합니다. | EventDispatcher | ||
지정된 속성이 객체에 정의되어 있는지 여부를 나타냅니다. | Object | ||
Called automatically by the MXML compiler when the Validator
is created using an MXML tag. | Validator | ||
Object 클래스의 인스턴스가 매개 변수로 지정된 객체의 프로토타입 체인에 있는지 여부를 나타냅니다. | Object | ||
지정된 속성이 존재하고 열거 가능한지 여부를 나타냅니다. | Object | ||
EventDispatcher 객체에서 리스너를 제거합니다. | EventDispatcher | ||
루프 작업에서 동적 속성을 사용할 수 있는지 여부를 설정합니다. | Object | ||
로캘별 규칙에 따라 서식이 지정된 이 객체의 문자열 표현을 반환합니다. | Object | ||
지정된 객체의 문자열 표현을 반환합니다. | Object | ||
Performs validation and optionally notifies
the listeners of the result. | Validator | ||
[정적]
Invokes all the validators in the validators Array. | Validator | ||
[정적]
Convenience method for calling a validator. | StringValidator | ||
지정된 객체의 프리미티브 값을 반환합니다. | Object | ||
이 EventDispatcher 객체 또는 조상 객체에 지정한 이벤트 유형에 대한 이벤트 리스너가 등록되어 있는지 여부를 확인합니다. | EventDispatcher |
메서드 | 정의 주체 | ||
---|---|---|---|
Sets up all of the listeners for the
valid and invalid
events dispatched from the validator. | Validator | ||
[재정의]
Override of the base class doValidation() method
to validate a String. | StringValidator | ||
Returns the Object to validate. | Validator | ||
Returns a ValidationResultEvent from the Array of error results. | Validator | ||
Returns true if value is not null. | Validator | ||
Disconnects all of the listeners for the
valid and invalid
events dispatched from the validator. | Validator | ||
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 |
maxLength | 속성 |
minLength | 속성 |
tooLongError | 속성 |
tooLongError:String
언어 버전: | ActionScript 3.0 |
제품 버전: | Flex 3 |
런타임 버전: | Flash Player 9, AIR 1.1 |
Error message when the String is longer
than the maxLength
property.
기본값: "This string is longer than the maximum allowed length. This must be less than {0} characters long.".
구현
public function get tooLongError():String
public function set tooLongError(value:String):void
tooShortError | 속성 |
tooShortError:String
언어 버전: | ActionScript 3.0 |
제품 버전: | Flex 3 |
런타임 버전: | Flash Player 9, AIR 1.1 |
Error message when the string is shorter
than the minLength
property.
기본값: "This string is shorter than the minimum allowed length. This must be at least {0} characters long.".
구현
public function get tooShortError():String
public function set tooShortError(value:String):void
StringValidator | () | 생성자 |
public function StringValidator()
언어 버전: | ActionScript 3.0 |
제품 버전: | Flex 3 |
런타임 버전: | Flash Player 9, AIR 1.1 |
Constructor.
doValidation | () | 메서드 |
override protected function doValidation(value:Object):Array
언어 버전: | ActionScript 3.0 |
제품 버전: | Flex 3 |
런타임 버전: | Flash Player 9, AIR 1.1 |
Override of the base class doValidation()
method
to validate a String.
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.
매개 변수
value:Object — Object to validate.
|
Array — An Array of ValidationResult objects, with one ValidationResult
object for each field examined by the validator.
|
validateString | () | 메서드 |
public static function validateString(validator:StringValidator, value:Object, baseField:String = null):Array
언어 버전: | ActionScript 3.0 |
제품 버전: | Flex 3 |
런타임 버전: | Flash Player 9, AIR 1.1 |
Convenience method for calling a validator. Each of the standard Flex validators has a similar convenience method.
매개 변수
validator:StringValidator — The StringValidator instance.
| |
value:Object — A field to validate.
| |
baseField:String (default = null ) — Text representation of the subfield
specified in the value parameter.
For example, if the value parameter specifies
value.mystring, the baseField value
is "mystring" .
|
Array — An Array of ValidationResult objects, with one
ValidationResult object for each field examined by the validator.
|
관련 API 요소
<?xml version="1.0" encoding="utf-8"?> <!-- Simple example to demonstrate StringValidator. --> <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:StringValidator source="{fname}" property="text" tooShortError="This string is shorter than the minimum allowed length of 4. " tooLongError="This string is longer than the maximum allowed length of 20." minLength="4" maxLength="20" trigger="{myButton}" triggerEvent="click" valid="Alert.show('Validation Succeeded!');" invalid="Alert.show('Validation Failed!');"/> </fx:Declarations> <s:Panel title="StringValidator Example" width="75%" height="75%" horizontalCenter="0" verticalCenter="0"> <mx:Form left="10" right="10" top="10" bottom="10"> <mx:FormItem label="Enter a name between 4 and 20 characters: "> <s:TextInput id="fname" width="100%"/> </mx:FormItem> <mx:FormItem > <s:Button id="myButton" label="Validate" /> </mx:FormItem> </mx:Form> </s:Panel> </s:Application>
Tue Jun 12 2018, 03:17 PM Z