Conditional form for Parent child categories

- Create parent category drop down

- Create child category drop downs

- On each child category drop down, edit the field and select the Advanced tab. Turn on conditional logic and select the parent drop down and the value you want to trigger displaying the child category.

- Repeat for each child category drop down.

That should be all there is to it. Under the advanced tab you turn on conditional logic and tell it which condition must be true (or false) in order for that field to appear.

You place the conditional logic on the field that you want to show/hide... NOT on the parent field that triggers that show/hide.

That should point you in the right direction... let me know how it goes.

My mistake, I misunderstood and was not thinking Post Categories and was just thinking you were using drop downs with information you were populating them with.

Currently conditional logic does not work off a Post Category field. Conditional Logic can only take an action from a Drop Down, Multiple Choice or Checkbox field.

The big question is... do you need to store the parent category? If not then here is a solution...

- Add a Drop Down field to your form and populate it with the Parent Categories. Yes it would have to be hardcoded in this case.

- Add a Post Category field to your form and choose it to be select categories and pick the child categories for the first parent category.

- Go to the Advanced Tab on the Post Category field you just created, turn on conditional logic and select which Parent needs to be selected in order for that child to be displayed.

Basically you will need to use Post Category fields that work on conditional logic from a Drop Down (non-post) field.