Firstworkdate with holiday

[phongnnguyen]

Hi guys,

I want to add holiday list into firstworkdate function. With checkwd is a field contains 1 and 0 ( if 1 is holiday )

this is my expression but its result not what i want

firstworkdate(max(Tradedate),5,concat(${<checkwd={'1'}>}Tradedate,','))

Many thanks for your help