Simple Character Check For Inline Validation
I'm just trying to make a simple inline validation for a form field and have been running into some issues creating it.
I have an input box, but if I enter a character that is forbidden (anything that isn't a number, comma, or period), I would like to make the text box red.
I've tried creating a logic that that: IF value of [inputbox] HAS Uppercase OR Lowercase THEN change style to a red border. But it doesn't seem to be working for me.
Any help is appreciated.