Why do some dropdowns (classic) have a filter box, and others do not?

[genesiusj]

Hello,

Why do some dropdowns have a filter box and others don't?

Are there options on the <input type="dropdown"...> tag that needs to be set?

What other options are available for dropdowns?

Thanks and God bless,
Genesius

[bowesmana]

The ones with an input box are most likely multiselect dropdowns, where you can select more than one option from the dropdown, whereas standard dropdown has no filter.

[genesiusj]

TY @bowesmana 

That is not the case. The searches for both dropdowns are the same inputlookup* file; one dropdown is one field, and the other is the other. But only one of the dropdowns has the filter box. 

*Have to use inputlookup and not index because data is originating from dbconnect.

The second dropdown (displays the filter box) is text. The first dropdown is a number (no filter box displayed). I converted to a string (added AAA in front of the number), but this did not work either.

Each dropdown search includes one of these
| search fieldA=$fieldA_from_other_dropdown$
| search fieldB=$fieldB_from_other_dropdown$

I also tried reversing the order of the dropdowns in the dashboard. But this did not fix the issue.

Thanks for any guidance you can provide.

God bless,
Genesius

[bowesmana]

Then it's this setting in the input

<allowCustomValues>true</allowCustomValues>