Is it possible to disable a FormItem without changing its appearance?
By making all the disabled styles the same as the normal styles, yes. But this sounds like some kind of hack..
Just looking for a simple way to take a complex set of form layouts distributed across multiple tabs and make a “read-only” version of it. If I just disable all of the form items they’re difficult to read.
You’re probably better off either presenting the data in DetailViewers, or for a more similar layout, re-creating the forms with StaticTextItems instead of editing controls. Otherwise, you have a bunch of junk like date picker icons around, and it can be confusing that they are present but inactive.