SwitchSymbolFormatter

套件	mx.formatters
類別	public class SwitchSymbolFormatter
繼承	SwitchSymbolFormatter 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 SwitchSymbolFormatter class is a utility class that you can use when creating custom formatters. This class performs a substitution by replacing placeholder characters in one String with numbers from a second String.

For example, you specify the following information to the SwitchSymbolFormatter class:

Format String: "The SocialSecurity number is: ###-##-####"

Input String: "123456789"

The SwitchSymbolFormatter class parses the format String and replaces each placeholder character, by default the number character (#), with a number from the input String in the order in which the numbers are specified in the input String. You can define a different placeholder symbol by passing it to the constructor when you instantiate a SwitchSymbolFormatter object.

The output String created by the SwitchSymbolFormatter class from these two Strings is the following:

"The SocialSecurity number is: 123-45-6789"

The pattern can contain any characters as long as they are constant for all values of the numeric portion of the String. However, the value for formatting must be numeric.

The number of digits supplied in the source value must match the number of digits defined in the pattern String. This is the responsibility of the script calling the SwitchSymbolFormatter object.

檢視範例

更多範例

Using the SwitchSymbolFormatter class

相關 API 元素

mx.formatters.PhoneFormatter

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

公用方法

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	方法		定義自
		SwitchSymbolFormatter(numberSymbol:String = "#") Constructor.	SwitchSymbolFormatter
		formatValue(format:String, source:Object):String Creates a new String by formatting the source String using the format pattern.	SwitchSymbolFormatter
		hasOwnProperty(name:String):Boolean 指出物件是否有已定義的指定屬性。	Object
		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
		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
		valueOf():Object 會傳回指定之物件的基本值。	Object

建構函式詳細資料

()

建構函式

public function SwitchSymbolFormatter(numberSymbol: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

Constructor.

參數

numberSymbol:String (default = "#") — Character to use as the pattern character.

方法詳細資訊

formatValue

()

方法

public function formatValue(format:String, source:Object):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

Creates a new String by formatting the source String using the format pattern.

參數

	`format:String` — String that defines the user-requested pattern including.

	`source:Object` — Valid number sequence (alpha characters are allowed if needed).

傳回值

String — Formatted String.

範例如何使用本範例

SwitchSymbolFormatterExample.mxml

<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate SwitchSymbolFormatter. -->
<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>
        <![CDATA[
            import mx.formatters.SwitchSymbolFormatter;
            import mx.events.ValidationResultEvent;

            private var vResult:ValidationResultEvent;

            // Event handler to validate and format input.
            private function Format():void {
                vResult = scVal.validate();

                if (vResult.type == ValidationResultEvent.VALID) {
                    var switcher:SwitchSymbolFormatter = new SwitchSymbolFormatter('#');
                    formattedSCNumber.text = switcher.formatValue("Formatted Social Securty number: ###-##-#### ", scNum.text);
                } else {
                    formattedSCNumber.text= "";
                }
            }
        ]]>
    </fx:Script>

    <fx:Declarations>
        <mx:SocialSecurityValidator id="scVal" source="{scNum}" property="text"/>
    </fx:Declarations>

    <s:Panel title="SwitchSymbolFormatter Example"
            width="75%" height="75%"
            horizontalCenter="0" verticalCenter="0">
        <s:VGroup left="10" right="10" top="10" bottom="10">
            <s:Label text="Enter a 9 digit Social Security number with no separator characters:" />
            <s:TextInput id="scNum" text="" maxChars="9" width="50%" />

            <s:Button label="Validate and Format" click="Format();" />
            <s:TextInput id="formattedSCNumber" editable="false" width="75%" />
        </s:VGroup>
    </s:Panel>

</s:Application>

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SwitchSymbolFormatter - AS3 Flex

類別 x

SwitchSymbolFormatter

formatValue