Constraint "None"

[solotheking]

May I know what’s wrong with my constraint syntax to prevent selecting “None” and any other option in a select_multiple question type but it’s not working at all.:
not(selected(.,‘None’) and count-selected(.)>1)

[Kal_Lam]

@solotheking, this post discussed previously should help you solve your issue:

How to add multiple constraints (none and declined to answer) for multiple choice question

You could do the same as outlined in the image below: In the survey tab of your xlsform: [Image 1] In the choices tab of your xlsform: [Image 2] Data entry screen as seen in Enketo: (when a condition is met) [Image 3] Data entry screen as seen in Enketo: (when a condition is not met) [Image 4] Data entry screen as seen in Enketo: (when a condition is not met) [Image 5] Data entry screen as seen in Enketo: (when a condition is not met) [Image 6] Data entry screen as seen in Enketo…

[solotheking]

Thanks a lot. You’ve saved a situation right now. May you be blessed beyond measure. select_multiple blessing