answer "bla bla" in LC serverscript

[Richard Gaskin]

Klaus wrote:
> How can I show a system dialog to the user in that case?
> I'm afraid I'm not too familiar with html/Javascript and  I need 
> to inform the user to fill all neccessary field in a webform if 
> he/she didn't.


Good news: web tech has grown up a lot over the years.  Much of what used to require JavaScript is now handled more easily in CSS and HTML.

In recent HTML versions, a form's input element has a lot more attributes than in the olden days:
https://www.w3schools.com/tags/tag_input.asp

The one you're looking for here is the "required" attribute - you can explore how it prevents form submission unless a field is filled in here:
https://www.w3schools.com/tags/att_input_required.asp

If a field requires a specific pattern to the input data, you can use Regex to define that in the input element's "pattern" attribute:
https://www.w3schools.com/tags/att_input_pattern.asp


If you're looking to brush up on newer HTML and CSS features, Kevin Powell's channel is among my faves, worth watching a least a few of his vids to see how things on the web have been evolving lately:
https://www.youtube.com/@KevinPowell/videos

--
Richard Gaskin
FourthWorld.com