| 套件 | mx.validators |
| 類別 | public class DateValidator |
| 繼承 | DateValidator  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 month is between 1 and 12 (or 0-11 for
Dateobjects) - 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
sourceandpropertyproperties to specify the String. The String can contain digits and the formatting characters specified by theallowedFormatCharsproperty, 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 theinputFormatproperty to specify a different format. -
Dateobject. - 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, andyearProperty.
顯示 MXML 語法
隱藏 MXML 語法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"
/>
| 屬性 | 定義自 | ||
|---|---|---|---|
| allowedFormatChars : String
The set of formatting characters allowed for separating
the month, day, and year values. | DateValidator | ||
 | constructor : Object
類別物件的參照或是特定物件實體的建構函數。 | 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 | ||
| enabled : 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 | ||
| listener : 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 | ||
| 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 | |
| trigger : IEventDispatcher
Specifies the component generating the event that triggers the validator. | Validator | |
| triggerEvent : 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 | ||
| 方法 | 定義自 | ||
|---|---|---|---|
Constructor. | DateValidator | ||
| 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 | |
|
會將事件傳送到事件流程。 | EventDispatcher | |
|
會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。 | EventDispatcher | |
|
指出物件是否有已定義的指定屬性。 | Object | |
|
Called automatically by the MXML compiler when the Validator
is created using an MXML tag. | Validator | |
|
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 | |
|
指出指定的屬性是否存在，以及是否可列舉。 | Object | |
|
會從 EventDispatcher 物件移除偵聽程式。 | EventDispatcher | |
|
為迴圈作業設定動態屬性的可用性。 | Object | |
|
傳回代表此物件的字串，根據地區特定慣例進行格式化。 | Object | |
|
會傳回指定之物件的字串形式。 | Object | |
|
Performs validation and optionally notifies
the listeners of the result. | Validator | |
| [靜態]
Invokes all the validators in the validators Array. | Validator | |
[靜態]
Convenience method for calling a validator
from within a custom validation function. | DateValidator | ||
|
會傳回指定之物件的基本值。 | Object | |
|
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 | |
| 方法 | 定義自 | ||
|---|---|---|---|
|
Sets up all of the listeners for the
valid and invalid
events dispatched from the validator. | Validator | |
[覆寫]
Override of the base class doValidation() method
to validate a date. | DateValidator | ||
|
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 | |
allowedFormatChars | 屬性 |
allowedFormatChars: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 |
The set of formatting characters allowed for separating the month, day, and year values.
預設值為 "/\-. "。
實作
public function get allowedFormatChars():String public function set allowedFormatChars(value:String):voiddayListener | 屬性 |
dayListener:IValidatorListener| 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 component that listens for the validation result
for the day subfield.
If none is specified, use the value specified
for the daySource property.
實作
public function get dayListener():IValidatorListener public function set dayListener(value:IValidatorListener):voiddayProperty | 屬性 |
public var dayProperty: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 |
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 | 屬性 |
daySource: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 |
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.
實作
public function get daySource():Object public function set daySource(value:Object):voidformatError | 屬性 |
formatError: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 inputFormat property
is not in the correct format.
預設值為 "Configuration error: Incorrect formatting string."。
實作
public function get formatError():String public function set formatError(value:String):voidinputFormat | 屬性 |
inputFormat: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 |
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.
預設值為 "MM/DD/YYYY"。
實作
public function get inputFormat():String public function set inputFormat(value:String):voidinvalidCharError | 屬性 |
monthListener | 屬性 |
monthListener:IValidatorListener| 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 component that listens for the validation result
for the month subfield.
If none is specified, use the value specified
for the monthSource property.
實作
public function get monthListener():IValidatorListener public function set monthListener(value:IValidatorListener):voidmonthProperty | 屬性 |
public var monthProperty: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 |
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 | 屬性 |
monthSource: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 |
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.
實作
public function get monthSource():Object public function set monthSource(value:Object):voidvalidateAsString | 屬性 |
validateAsString: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 |
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.
預設值為 true。
實作
public function get validateAsString():Object public function set validateAsString(value:Object):voidwrongDayError | 屬性 |
wrongLengthError | 屬性 |
wrongLengthError: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 length of the date
doesn't match that of the inputFormat property.
預設值為 "Type the date in the format inputFormat."。
實作
public function get wrongLengthError():String public function set wrongLengthError(value:String):voidwrongMonthError | 屬性 |
wrongYearError | 屬性 |
yearListener | 屬性 |
yearListener:IValidatorListener| 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 component that listens for the validation result
for the year subfield.
If none is specified, use the value specified
for the yearSource property.
實作
public function get yearListener():IValidatorListener public function set yearListener(value:IValidatorListener):voidyearProperty | 屬性 |
public var yearProperty: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 |
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 | 屬性 |
yearSource: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 |
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.
實作
public function get yearSource():Object public function set yearSource(value:Object):voidDateValidator | () | 建構函式 |
public function DateValidator()| 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.
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 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.
參數
value:Object — Either a String or an Object to validate.
|
Array — An Array of ValidationResult objects, with one ValidationResult
object for each field examined by the validator.
|
validateDate | () | 方法 |
public static function validateDate(validator:DateValidator, 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: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".
|
Array — An Array of ValidationResult objects, with one ValidationResult
object for each field examined by the validator.
|
相關 API 元素
<?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>
Tue Jun 12 2018, 03:47 PM Z