Autocomplete text box based on dependent dropdown choice

It will be helpful if you can share your current script or a copy of that PDF to assist you better.

From the way you've described your requirement it sounds like you already have hardcoded the values that need to be displayed on the second dropdown field. However, Are you asking to just display  in that second combobox the export value of a selection made in combobox1 or are you asking to also insert that event value as an listed item in dropdown2?

There are plenty of scripts and methods that can takle care of that, but we are unclear of what needs to happen.

For example, are users allowed to enter custom text in both dropdown menus?  If yes, what do you need to happen with custom entries?

On the other hand, using the changeEx keystroke method that is referenced in the link that above, it only pushes out the export value of whatever item is selected from dropdown1 to dropdown2; dropdown2 will just display that export value as its event value and nothing else.

If you need to make a current selection of dropdown1 immediately available  in dropdown2 and include it as a list item with the same (or a different) export value,  you must modify the keystroke script with other property methods, such as insertItemAt(), or a combination of getItemAt() with "currentValueIndices".

See examples here: Combo box fields 

Hi @Rotem26005237hpuw,

Hope you are doing well. Per the description, I understand that you want to the auto-populate the field using multiple drop downs.

You can try adding the command GetItemsAt() to get the values from the second drop-down and then populate the text field.

You may refer to the link for more: How do you use a selection from a drop down menu to auto populate a selection in a textbox. (JavaScript) (acrobatusers.com)

Hope this helps.

-Souvik.