Hey James,

Thanks for the idea, what we'll do in Contour 3.0 with the razor render macro is make it possible to hook into the form validation (from a fieldtype and from an event handler so that should take care of the scenarion described here :) )

Early preview of the razor render: http://www.screenr.com/Omf8

So should be something like: 

    public class ValidationTest: ApplicationBase
    {
        public ValidationTest()
        {
            Controllers.FormRenderController.FormValidate += new EventHandler<FormViewEventArgs>(FormRenderController_FormValidate);
        }

        void FormRenderController_FormValidate(object sender, FormViewEventArgs e)
        {
            ((Controller)sender).ModelState.AddModelError(string.Empty,"testing this");
        }
    }

Wow Tim, what a fantastic response.  I'll really look forward to testing 3.  The razor render looks really useful.  I know its intended for release later in the year, don't suppose you have a more definite release date yet?

Should be in oktober but nightly builds are already available http://nightly.umbraco.org/Umbraco%20Contour/ 

And now its released (in beta), and with a blog post to document it fully.  See http://www.nibble.be/?p=205 ; Fantastic!

is working on a reply...