Are the ContextKeys ever going to become functional? And will the be editable via javascript before the file is sent for upload? I see in the sample that ContextKeys is a property but it's not accessible through the AjaxFileUploadEventArgs. Would also be useful to be able to edit it through Javascript. For instance, if we want to dynamically append an orderid or if we want to change the file name to something from a dropdownlist that it could be accomplished in script before the file is uploaded.
Thanks.