concat two fields in choiceLabels of dropdown

Question

Hello everybody,
I am new to Appian and I'm facing this issue.

I am building a simple dropdown interface, getting fields from CDT 'assets', using a local variable dataassets in the load section.
My goal is to show a 'choiceLabels' with concatenation of both fields 'manufacturer' and 'model' but all my attempts were ineffective.

The complete code (with my trials) is in attachment.

Could you please give me a suggestion?

Thanks in advance, best regards.
Paolo

toforum.txt

Josh · Answer

Hi paolos, one solution would be "choiceLabels: apply(concat(_, " ", _), merge(local!dataassets.data.manufacturer, local!dataassets.data.model))"

Mike Schmitt · Answer

I know this is an old thread now, but for the record, with the advent of Appian 17.2 and the new "a!forEach()" function, the previous best solution (per Josh ) is now replaced with a far simpler and more elegant option. 
 This would do it for you: 
 choiceLabels: a!forEach(
 local!dataAssets.data,
 fv!item.manufacturer & " " & fv!item.model
)