I am trying to change input field type according to http://www.episerver.com/templates/ForumItem____2094.aspx which works well to some extent. I can change the type of input field to all kinds of FieldType in EPiServer.Core.FieldType EXCEPT for the Hidden type. And of course, I want the field to be a Hidden... I use EPiServer 4.41.0.71 on Win XP Pro En.