Using the new ExternalInterface API we can now communicate seamlessy from Flex to Javascript and from Javascript to Flex. Check out the sample by running the code below.

This sample requires the Flash 8.5 player.

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Here is what I didto get the new FlexBuilder 2 - ColdFusion adapter.

My CF server is localhost:8500 so your config could be a little different.

After following the directions from macromdeia:
To install the FlexBuilder 2-ColdFusion Adapter:

1. Extract the files in the cfzorn.zip file as follows:
   

   File	Extract to:
   hf701-61119.jar	cfusion\lib\updates (mine was at C:\CFusionMX7\lib\updates)
   crossdomain.xml	your web root (for example wwwroot, or inetpub\wwwroot) (mine was at C:\CFusionMX7\wwwroot)
   flex-services.xml flex-services.xsd coldfusionsamples.xml	WEB-INF\flex (mine was at C:\CFusionMX7\wwwroot\WEB-INF) Note: The WEB-INF\flex directory does not already exist.

2. Modify the web.xml file, which is located in the WEB-INF directory by doing the following:.
   1. In the section of the file that contains the servlet configurations, add the following:
      <servlet> <servlet-name>MessageBrokerServlet</servlet-name> <servlet-class>coldfusion.bootstrap.BootstrapServlet</servlet-class> <init-param> <param-name>servlet.class</param-name> <param-value>flex.messaging.MessageBrokerServlet</param-value> <param-name>services.configuration.file</param-name> <param-value>/WEB-INF/flex/flex-services.xml</param-value> </init-param> <load-on-startup>14</load-on-startup> </servlet>
   2. In the section of the file that contains the servlet-mappings, add the following:
      <servlet-mapping id="macromedia_mapping_0"> <servlet-name>MessageBrokerServlet</servlet-name> <url-pattern>/flex2gateway/*</url-pattern> </servlet-mapping>
3. If your ColdFusion server uses something other than port 8500:
   1. Open the file C:\CFusionMX7\wwwroot\Web-INF\flex\flex-services.xml.
   2. Change the following to specify the port you are using:
      <endpoint uri="/flex2gateway/" port="8500" in flex-services.xml
   3. Save the file.
4. Restart the ColdFusion server.

I then did the following:
Created a com folder and then a local folder within com.
I then created a cfc named TestCFC.cfc with the following code:
<cfcomponent>
<cffunction name=”getTestString” returntype=”string”>
<cfreturn “Test from ColdFusion”>
</cffunction>
</cfcomponent>

I added the following to my coldfusionsamples.xml file:
<destination id=”TestCFC”>
<properties>
<source>com.local.TestCFC</source>
<lowercase-keys>true</lowercase-keys>
</properties>
<channels>
<channel ref=”my-cfamf”/>
</channels>
</destination>

I then created an mxml file with the following code:
<?xml version=”1.0″ encoding=”utf-8″?>
<mx:Application xmlns:mx=”http://www.macromedia.com/2005/mxml” xmlns=”*”>
<mx:RemoteObject id=”testCFC”
destination=”TestCFC”
result=”mx.controls.Alert.show(’result = ‘ + event.result, ‘Result’)”
fault=”mx.controls.Alert.show(’error = ‘ + event.fault, ‘Error’)”/>
<mx:Canvas width=”100%” height=”100%”>
<mx:Button click=”testCFC.getTestString()” label=”Get String” />
</mx:Canvas>
</mx:Application>

Lastly I added the following to my Project -> Properties -> Flex Compiler:

Here is a simple Regular Expression email validator. This sample requires the Flash 8.5 player.
You can also run it from the permanent link in the header of this page.
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I created a Flex Blog Reader that parses all of the Flex blogs posted at weblogs.macromedia.com. This is a Cairngorm v.99 application based on the macromedia simpleblog reader.
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A new entry has made it into the Flex Hall of Fame is the Design Center localed at http://www.omnova.com.
This site shows excellent use of RIA and a nice clean design.
Please nominate your choice for the next entry into the hall in the comments section.