is_empty(this.NAOK) or regexMatch("/^[a-zA-Z]+$/", this.NAOK)
Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member,
professional service on demand
,
plugin development
. I don't answer to private message.
Last edit: 7 years 3 months ago by DenisChenu.
The following user(s) said Thank You: anuragkh1711