Access to fields in document

I have form with 1 “field A” (by default=“”). also in this form there is one computed subform. Subform has one “field B” and appears only when “field A” is empty.

Is it possible to do next thing:

when somebody opens doc, the subforms will appear because field A is empty, then will enters data to “field A”, save document, and close document. After that subform will not appear, but user can still look in document via properties and find the value from “field B” in subform.

I’m interested in best way how to hide value from “field B” in subform when condition says to hide the subform.

any suggestion will be appreciated.

thanks and spasibo !

Subject: Access to fields in document

I think you have two options:Use an access limited section on the subform and remove the user from the reader list when you want to hide field B

or

Clear field B when you set value A.

Other than that, if it’s in the doc, it’s in the properties and the user can see it.