Query about Regex Validation

[Sandip Bhogal]

Say if i have a user form with Multi Text field - is there possibility on limiting lines? So the person who fills in the form cannot exceed more than 2 lines, if so, what would be the regex validation?

Also would like to know, what would be the regex validation for inputting numbers only? We dont want users to input letters in single text field. 

Would appreciate your support. 

Kind regards

Sandip 

[Steve Giller]

For numbers only you can use

^\d*$

I'm not sure about the 2 line limit.

[Sandip Bhogal]

Hi Steve, 

Thanks for getting back and that's very useful to know. Is there a way of restricting it to 2 digits only? If that's possible, what would be the regex? 

[Steve Giller]

For 2 digits at most (including just leaving it blank) I think (please check this) that it's

^\d{0-2}$

And for 2 digits exactly

^\d{2}$