Share on Google+Share on Google+

CreditCardValidator in Flex4

Advertisement
The CreditCardValidator class is used for validate a credit card number. It checks the length and correct prefix of the credit card number and check the number is currently active or not.

CreditCardValidator in Flex4:

The CreditCardValidator class is used for validate a credit card number. It checks the length and correct prefix of the credit card number and check the number is currently active or not. The cardNumberSource and cardNumberProperty properties are used for check the location of the credit card number, and the cardTypeSource and cardTypeProperty properties are used to specify the location of the credit card type to validate. The length of the credit card number are following.
1. Visa: 13 or 16 digits
2. MasterCard: 16 digits
3. American Express: 15 digits
The tag of CreditCardValidator is <mx:CreditCardValidator>.

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.controls.Alert;

]]>

</fx:Script>

<fx:Declarations>

<fx:Model id="creditcard">

<card>

<cardType>{drp.selectedItem.data}</cardType>

<cardNumber>{numberInput.text}</cardNumber>

</card>

</fx:Model>

<mx:CreditCardValidator id="creditcardV"

cardTypeSource="{creditcard}" cardTypeProperty="cardType"

cardNumberSource="{creditcard}" cardNumberProperty="cardNumber"

trigger="{btn}" triggerEvent="click"

cardTypeListener="{drp}"

cardNumberListener="{numberInput}"

valid="Alert.show('Validation Successful');"/>

</fx:Declarations>

<s:Panel title="CreditCardValidator Example" width="550">

<mx:Form width="548" backgroundColor="#101446" color="#FFFFFF">

<mx:FormItem label="Card Type">

<s:DropDownList id="drp" width="160" prompt="Card Type" color="#000000">

<s:ArrayCollection id="cardData">

<fx:Object label="American Express" data="American Express"/>

<fx:Object label="MasterCard" data="MasterCard"/>

<fx:Object label="Visa" data="Visa"/>

</s:ArrayCollection>

</s:DropDownList>

</mx:FormItem>

<mx:FormItem label="Credit Card Number">

<s:TextInput id="numberInput" color="#000000"/>

</mx:FormItem>

<mx:FormItem>

<s:Button id="btn" label="Check Validation" chromeColor="#5F1B0C"/>

</mx:FormItem>

</mx:Form>

</s:Panel>

</s:Application>

Output:

Running Application:

To view this page ensure that Adobe Flash Player version 10.0.0 or greater is installed.


Download this code

Advertisements

Advertisement

Posted on: May 26, 2010 If you enjoyed this post then why not add us on Google+? Add us to your Circles

Share this Tutorial Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.