# Custom form / Computed columns **URL:** https://community.glideapps.com/t/custom-form-computed-columns/73520 **Category:** Ask for Help **Created:** [May 21, 2024, 1:57am UTC](https://community.glideapps.com/t/custom-form-computed-columns/73520 "2024-05-21T01:57:08Z") **Posts on this page:** 1 **Showing post:** 7
### Author: ![Darren\_Murphy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/darren_murphy/32/47326_2.png) [@Darren\_Murphy](https://community.glideapps.com/u/Darren_Murphy) #### Post date: [May 21, 2024, 1:19pm UTC](https://community.glideapps.com/t/custom-form-computed-columns/73520/7 "2024-05-21T13:19:57Z")
It’s unfortunate that your screen shots don’t show the left and right hand panels in the builder. Those panels provide additional context that helps us to interpret what is going on. But anyway, if I’m understanding correctly, it looks like you are trying to use a Table Collection as a form? If that’s true, that certainly explains why you are struggling to get things working as you would like. That’s not the intended purpose of a collection, and so it’s like trying to insert a square block in a round hole - it won’t work. A custom form is something completely different. Have a read through the below thread: > [@How do I create a custom form?](https://community.glideapps.com/t/how-do-i-create-a-custom-form/25014): > > I’m just dropping this here so I have something to refer people to when they ask. This is a simple concept app (copyable), that demonstrates the following techniques: Building custom forms for adding and editing list items (as an alternative to the native forms provided by Glide) Preventing duplicate new entries using [User Specific Columns](https://docs.glideapps.com/all/reference/data-editor/user-specific-columns) and [Relations](https://docs.glideapps.com/all/reference/data-editor/computed-columns/relation-column) Enforcing mandatory input items The use of visibility conditions and user specific booleans to control user flow There is nothing particular… --- _[View the full topic](https://community.glideapps.com/t/custom-form-computed-columns/73520)._