Restrict list question to be numeric

Syntax
1

Dear SS team,

Is it possible to restrict a list question to be numeric only. I have been able to restrict the length of the variable.

regards
Rabelani

2

It is possible to use validation conditions that will flag an error if the condition you write evaluates to be false. You can not restrict anything.

But if you would like to flag an error if an interviewer does not enter only numeric values to a list question, e.g. called q_list, you could use a validation condition at q_list:

self.All(x=>Convert.ToDouble(x.Item2)!=null)

3

Thank you Peter

Regards
Rabelani