AS3 doesn't have the concept of generics, so yes, all collections should be instances of mx.collections.ArrayCollection by default. Types like mx.collections.ArrayCollection can only really be sent and received properly by AMF3, so any remoting endpoint would have to understand this version of the AMF protocol. Any remoting solution working with Flex 2's RemoteObject should be aware of the messaging infrastructure that is used to send messages for any remote service request and response. If Fluorine isn't sending back the result wrapped in a typed instance of flex.messaging.messages.AcknowledgeMessage (or an error wrapped in an mx.messaging.messages.ErrorMessage) with a correct correlationId property to match the request mx.messaging.remoting.RemotingMessage's messageId - then it won't work. .
________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of khmerang Sent: Friday, June 15, 2007 2:14 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Flex Remoting and complex objects Hi all, I'm beginner with Flex, but have quite a lot experience with .Net. We have been testing to move some complicated UI to Flex using Fluorine as the remoting host. Almost everything seems to be working fine, but sending complex objects from Flex seems to have some serious issues. We have value objects that contain nested lists, for example: Project + Sections : List<ProjectSection> ProjectSection + Assets : List<Asset> Asset + AvailableColors : List<Color> These objects are received by Flex (all generic lists are converted to ArrayCollections) just fine, but I am getting an error when trying to send the object back to the host: TypeError: Error #1034: Type Coercion failed: cannot convert [EMAIL PROTECTED] to mx.messaging.messages.IMessage. As a breakpoint inside Fluorine service will not trigger, I am expecting that the problem happens inside Flex. Has anybody experience with objects like this? We are using Cairngorm in Flex, could that be an issue? Or do you think the problem would be with Fluorine (haven't tested with WebOrb)? Any ideas appreciated, Miika
