Multilevel form

[sn4h]

Hi!

I'm trying to create a multilevel form with a repeater pattern, and I’m wondering if that’s possible.

For example, I’d like to create a form where users can add new rows dynamically, like this:

We also have sections like this, where each section can contain multiple rows, with an “Add new line” button similar to the screenshot.

Is there a good way to structure this with the builder library? Thanks!

[slargat]

@sn4h did you try using an entity of type group maybe and children of type row with relation constraints ?

[sandulat]

@sn4h It is indeed possible. Here's a live example I implemented for your use case:
https://stackblitz.com/edit/coltorapps-builder-nested-cjr4c9p6

The idea is that you can define multiple builders, nest them within each other, and recursively chain their validations.
The example includes a main builder used to create section and table entities, and a table builder whose schema is stored in the columns attribute of table entities.

Feel free to take a look at the code and let me know if you need any help.

[sn4h]

Awesome! I will test this and get back 👍