The scenario I am considering is if you accidentally leave a form field in the form/view model that you removed from your view and then use techniques to automatically assign data back to the model. Obviously I know little of the F# frameworks :) On Wed, Jun 1, 2011 at 9:14 AM, Justin Greene wrote:

Hi Greg,

From what I can tell, the form/view model is roughly the same as building

...

up an applicative form. If you build a custom form, you have to declare a field both in your form/view model and in your view, which is the kind of insecure duplication we would like to avoid when possible.

I am unclear as to what you mean by "insecure". You do have to specify where you want your field to render, but there is no chance of someone maliciously adding fields to your form, or inserting data into fields that you do not specify.