Restriction of options based on previously selected answer

[Kal_Lam]

OK, if this is the case, you could do it as outlined in the post discussed previously:

How to keep some choice(s) visible at all times with the aid of a cascading select function?

Well this is very clear now. 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] In the settings tab of your xlsform: [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 met) [Image 5] Reference xlsform: Cascading Select.xlsx (13.3 KB)