# Filter form field based on dropdown field in the same form or page

**URL:** <https://community.triggre.com/t/filter-form-field-based-on-dropdown-field-in-the-same-form-or-page/650>\
**Category:** Support\
**Created:** [February 26, 2024, 3:07pm UTC](https://community.triggre.com/t/filter-form-field-based-on-dropdown-field-in-the-same-form-or-page/650 "2024-02-26T15:07:57Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![niels.deboer](https://avatars.discourse-cdn.com/v4/letter/n/57b2e6/32.png) [@niels.deboer](https://community.triggre.com/u/niels.deboer)\
**Post date:** [February 26, 2024, 3:46pm UTC](https://community.triggre.com/t/filter-form-field-based-on-dropdown-field-in-the-same-form-or-page/650/3 "2024-02-26T15:46:18Z")

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Thanks Jochem!

I should have asked ofcourse also if you have an example or documentation that i have not found yet. 🙂 .  
I just found this masterclass [24. Parent-child forms - Documentation / Weekend masterclass - Triggre Community](https://community.triggre.com/t/24-parent-child-forms/571) and think it will help me a lot.

It would also be great to see the data model setup of the masterclass. Where can I find this?

Last question:  
Can I also hide a form field based on selection of the parent field? Sometimes additional fields are needed and sometimes not.

If this is possible, how can i build this?

Thanks!

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