NumberFormatter in Flex4


 

NumberFormatter in Flex4

The NumberFormatter class formats the decimal rounding and precision, thousand separator and negative sign.

The NumberFormatter class formats the decimal rounding and precision, thousand separator and negative sign.

NumberFormatter in Flex4:

The NumberFormatter class formats the decimal rounding and precision, thousand separator and negative sign. for example,203.4567=203.456 . You can use the precision property for decimal length. If an error occurs this error is saved to the error property. The error property has two types of error values: Invalid value, Invalid format. The tag of NumberFormatter is <mx:NumberFormatter>.
You will be declare a formatter in <fx:Declarations> tag.

Example:

<?xml version="1.0" encoding="utf-8"?>

<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"

minWidth="955" minHeight="600">

<fx:Script>

<![CDATA[

import mx.events.ValidationResultEvent;

private var result:ValidationResultEvent;

private function checkFormat():void

{

result = numValidate.validate();

if (result.type==ValidationResultEvent.VALID) {

numval.text= numberFormatter.format(numtxt.text);

}

else {

numval.text= "Invalid Number";

}

}

]]>

</fx:Script>

<fx:Declarations>

<mx:NumberFormatter id="numberFormatter" precision="3"

 useThousandsSeparator="true" useNegativeSign="true"/>

<mx:NumberValidator id="numValidate" source="{numtxt}" property="text"

 allowNegative="true" domain="real"/>

</fx:Declarations>

<s:Panel title="NumberValidator Example" width="506">

<mx:Form backgroundColor="#096465" width="504">

0

<mx:FormItem label="Enter number:" color="#FFFFFF" fontFamily="verdana">

<s:TextInput id="numtxt" text="" width="100%" color="#000000" fontFamily="verdana"/>

</mx:FormItem>

1

<mx:FormItem label="Formatted Value: " color="#FFFFFF" fontFamily="verdana">

<s:Label id="numval" color="#FFFFFF" fontFamily="verdana"/>

</mx:FormItem>

2

<mx:FormItem>

<s:Button label="Format" click="checkFormat();"/>

</mx:FormItem>

3

</mx:Form>

</s:Panel>

</s:Application>

4

Output:

Running Application:

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