Package | spark.validators |
Class | public class NumberValidator |
Inheritance | NumberValidator ![]() ![]() ![]() ![]() ![]() ![]() |
Language Version: | ActionScript 3.0 |
Product Version: | Flex 4.5 |
Runtime Versions: | Flash Player 10.1, AIR 2.5 |
int
,uint
, and Number
objects.
This class uses the locale
style for specifying the
requested locale ID.
The validator can ensure that the input falls within a given range
(specified by minValue
and maxValue
properties),
is an integer (specified by domain
property),
is non-negative (specified by allowNegative
property),
correctly specifies negative and positive numbers,
and does not exceed the specified number offractionalDigits
.
The validator sets default property values by making use of the
flash.globalization.NumberFormatter
and therefore the locale
specific values are supplied by the operating system.
The NumberValidator
class can be used in MXML declarations
or in ActionScript code. This class uses the locale style for specifying the
requested Locale ID required by the
flash.globalization.NumberFormatter
class, and has methods and
properties that are bindable.
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The <spark:NumberValidator>
tag
inherits all of the tag attributes of its superclass,
and adds the following tag attributes:
<s:NumberValidator Properties negativeNumberFormat="locale specified string or customized by user." negativeNumberFormatError="The negative format of the input number is incorrect." />
More examples
Related API Elements
Property | Defined By | ||
---|---|---|---|
![]() | constructor : Object
A reference to the class object or constructor function for a given object instance. | Object |
Method | Defined By | ||
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![]() | addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | |
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Dispatches an event into the event flow. | EventDispatcher | |
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Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
![]() |
Indicates whether an object has a specified property defined. | Object | |
![]() |
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
![]() |
Indicates whether the specified property exists and is enumerable. | Object | |
![]() |
Removes a listener from the EventDispatcher object. | EventDispatcher | |
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Sets the availability of a dynamic property for loop operations. | Object | |
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Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
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Returns the string representation of the specified object. | Object | |
![]() |
Returns the primitive value of the specified object. | Object | |
![]() |
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher |
Styles are either common or associated with a specific theme. If the style is common, it can be used with any theme. If a style is associated with a specific theme, it can only be used if your application uses that theme.
<?xml version="1.0" encoding="utf-8"?> <!-- Sample program for spark.formatters.NumberValidator --> <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:Declarations> <s:NumberValidator id="numberValidator" source='{inputNumber}' property="text" trigger='{validateBtn}' triggerEvent="click" /> <s:NumberFormatter id="numberFormatter" useGrouping="true"/> </fx:Declarations> <fx:Script> <![CDATA[ [Bindable] private var number:Number = 123456789.12; ]]> </fx:Script> <mx:Form> <mx:FormItem label="Input Locale ID Name"> <mx:HBox> <s:TextInput id="inputLocaleIDName" text="en-US"/> <!-- Upon button click, sets the locale style on the document UI component. The formatter will inherit this style. --> <s:Button click="setStyle('locale', inputLocaleIDName.text);" label="Apply"/> </mx:HBox> <mx:Text text="Example: 'en-US', 'fr-FR', 'ja-JP', 'ar-SA'"/> </mx:FormItem> <mx:FormItem label="Allow Negative"> <mx:CheckBox id="alowNegative" selected="true" change="numberValidator.allowNegative = alowNegative.selected"/> </mx:FormItem> <mx:FormItem label="Fractional Digits"> <mx:TextInput id="fractionalDigits" text='{numberValidator.fractionalDigits}' change="numberFormatter.fractionalDigits = numberValidator.fractionalDigits = Number(fractionalDigits.text)"/> </mx:FormItem> <mx:FormItem label="Actual Locale ID Name"> <mx:Text text="{numberValidator.actualLocaleIDName}"/> </mx:FormItem> <mx:FormItem label="Input number" > <mx:HBox> <mx:TextInput id="inputNumber" /> <mx:Button id="validateBtn" label="Validate" /> </mx:HBox> </mx:FormItem> <mx:FormItem label="Example number"> <mx:Text text="{numberFormatter.format(123456789.12)}"/> </mx:FormItem> </mx:Form> </s:Application>
Wed Nov 21 2018, 06:34 AM -08:00