Any experience of using Naked Objects frameworks for .net?

On first sight开发者_高级运维, Naked Objects look very promising in that they allow a full system with a basic UI to be created quickly, then refined.

Has anyone got real life experience using any of the .net Naked Objects frameworks?

How should I choose between the different Naked Objects frameworks?

Does anyone know of a .net Naked Objects frameworks that is open source, or at least does not have a per user licence cost when the finished application is deployed?

(FYI, we are very close to launching a brand new version of the product - Naked Objects MVC. This works with ASP.NET MVC 2 and gives you a complete HTML UI from the same domain objects, and then (if you really need to!) you can customise this UI using standard ASP.NET MVC patterns.

Best of all - from the point of view of your question - this will not have a per user license cost. There will be a per-developer cost (not yet fixed, but realistically priced) and there will be a free time-unlimited evaluation version (which runs locally but not on a remote IIS Server).

If you're interested in trying this out, please get in touch with me (rpawson at nakedobjects.net)

Naked Objects MVC does include (in the licensed version) the source code of the MVC UI part - though it does not include the source code of the underlying Naked Objects for .NET framework. The latter is in use in a big way in the Irish government. FYI, part of the commitment to that client is that in the event that our company is no longer able/willing to actively develop and support the product, then it will automatically revert to an open source license - I think that's as fair a commitment as one can make.

Also, FYI, though Dynamic Data has some similarities, it is not really the same thing: it does not expose object behaviour in the form of actions. This is a much bigger deal than it might sound. I agree that Microsoft does not appear to be actively promoting DD now, though. There was an attempt to re-implement DD within ASP.NET MVC, but that also has since been removed from CodePlex.

As there is not an open source port of Naked Object to .net, the options at present seem to be:

• Naked Object MVC (Naked Objects is now open source on .net)
• ASP.NET Dynamic Data – A attempt by Microsoft to solve the same problem. (free, no source code, does not seem to be “actively promoted” by Microsoft)

In both cases I have to ask myself how long will they be actively developed.

Ian, the source is available at http://sourceforge.net/projects/nakedobjects/ but it's only Java. But I guess you could run it through Microsoft's Java to .Net converter.