Hi all,
I've spent most of the day trying to track down a nasty bug with Flex (or Flash) in ASP.NET. I've not yet tried in Firefox, but it's present in IE6 and IE7. ASP.NET wraps pretty much the entire page in <form></form> tags. Unfortunately, either Flex or the Flashplayer includes javascript that relies on the movie not being inside forms, when you use ExternalInterface. Eg. Create a new flex project like this: <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="absolute" creationComplete="initApp();"> <mx:Script> <![CDATA[ public function initApp():void { // Add interface so Javascript can call our setData method ExternalInterface.addCallback("setData", setData); } public function setData(sXml:String):void { // Do nothing } ]]> </mx:Script> </mx:Application> It simply registers a method than be called in javascript. If you run this, you'll just get a blank flex app. Now open the index.template.html file, and add form tags immediately inside the body tag: <body> <form> // rest of page // </form> </body> Now try running it again. You'll get a javascript error to the effect of "'FormTestProject' is undefined". It comes from this code (I don't know if this comes form Flex or the FP) which gets loaded into the document: function __flash_unloadHandler() { FormTestProject.style.display = 'none'; // Snip } Note that FormTestProject is not wrapped in document.getElementById(). This seems to work by fluke when the object is in the main page, but when inside a form, it doesn't. I can't find anyone else having this issue on flexcoders (though searching for "form" returns anything containing formatting, etc. etc.!), which kinda surprises me, given it's a big show stopper for anyone using asp.net and ExternalInterface. Anyone else hit this problem? Any workarounds? Thanks, Danny -------------------------------------------------------- The information contained in this e-mail and/or any attachments is confidential and intended only for the individual(s) to which it is addressed. If you are not named as an addressee you must not disclose, copy or take any action in reliance of this transmission. This e-mail and its attachments have been scanned for viruses by MessageLabs Ltd. ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
