Title: Example for custom element forms
Last modified: August 21, 2016

---

# Example for custom element forms

 *  [hpiili](https://wordpress.org/support/users/hpiili/)
 * (@hpiili)
 * [11 years, 10 months ago](https://wordpress.org/support/topic/example-for-custom-element-forms/)
 * Hi,
 * I need to do dropdown lists that are interdependent. I did the customization 
   already among the participant database sources using js, but now I would like
   to do it properly using the custom filters.
 * Would anyone have an example of custom element code for forms?
 * It would greatly help me to see an example files pdb-set_form_element_types.php
   and pdb-form_element_build_$type.php
 * Br, Harri
 * [https://wordpress.org/plugins/participants-database/](https://wordpress.org/plugins/participants-database/)

The topic ‘Example for custom element forms’ is closed to new replies.

 * ![](https://ps.w.org/participants-database/assets/icon-256x256.jpg?rev=1389807)
 * [Participants Database](https://wordpress.org/plugins/participants-database/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/participants-database/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/participants-database/)
 * [Active Topics](https://wordpress.org/support/plugin/participants-database/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/participants-database/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/participants-database/reviews/)

## Tags

 * [custom element](https://wordpress.org/support/topic-tag/custom-element/)
 * [forms](https://wordpress.org/support/topic-tag/forms/)
 * [participant database](https://wordpress.org/support/topic-tag/participant-database/)

 * 0 replies
 * 1 participant
 * Last reply from: [hpiili](https://wordpress.org/support/users/hpiili/)
 * Last activity: [11 years, 10 months ago](https://wordpress.org/support/topic/example-for-custom-element-forms/)
 * Status: not resolved