button

Hi, 

If you add a button in a Ninox form it does nothing in the first instant. You need to insert a formula into the function field. 

Please have a look into our User Manual. As I know you are understand German, I would suggest to use the German "Benutzerhandbuch" because it is very new and a bit more wide-ranging.

https://ninoxdb.de/de/manual/erweiterte-Berechnungen/die-programmiersprache-nx

King regards, Jörg