Conditional field protection

[JanBayer]

Hi all,
New to this forum, I have a question that I would need an answer to, in order to proceed with my project. Is there a possibility to block data entry/modification of a (text) field, conditioned by the content of another (text) field. Say, if field A contains the value "no", field B becomes unmodifiable ?!
I hope the question is clear, and I thank you in advance for your help.
Amicalement,
Jan Bayer

 

[JeanW]

Make a reference in field B to field A in the Validation by Calculation box that you can find in the option screen for field B.