Apply Validation to Forms

You can validate your form fields using the validation options available in the properties panel.

First select the field you'd like to validate:

In the properties panel add new validation rule:

You will see the validation rules, grouped in categories like: text, numbers, date & time:

Select the one you need and add it. We add a required validation:

You can customize the error text:

Add as many rules as you need for this field:

We open the text validation rules category:

And select alphanumeric rule:

You can customize the error message. Also you can remove a rule from a form field by clicking on the blue checkbox:

The validation rules will prevent the form from submitting until all the fields are properly filled: