Text Field Formatting Validation

[Altair]

How do I make my fields check and validate if the entered field is following a specified format? Like the email validation for example. I would like to have the same for fiscal ID's, etc. Any ideas?

[Nuke354]

This links might give you an idea on how it can be done by adding a required pattern attribute to your text fields.

https://stackoverflow.com/questions/39343696/jquery-fiscal-code-validation

https://stackoverflow.com/questions/39592208/dynamically-adding-pattern-and-title-attributes-to-input-control

Here's an example that you can test in an HTML Block w/ Header and Footer for the styles:
 

<div>FISCAL ID: <input type="text" name="name" required pattern="[A-Z]{6}\d{2}[A-E,H,L,M,P,R,S,T]{1}\d{2}[A-Z]{1}\d{3}[A-Z]{1}" /></div>

<style>  
input:required:invalid {background-color: lightcoral;}
input:required:valid {background-color: lightgreen;} 
</style>

With this knowledge, you can select the Caspio text field and use:

.setAttribute("pattern","[A-Z]{6}\\d{2}[A-E,H,L,M,P,R,S,T]{1}\\d{2}[A-Z]{1}\\d{3}[A-Z]{1}");