Please help us help you and fill where relevant: Your LimeSurvey version: 5.3.15 Own server or LimeSurvey hosting: own Survey theme/template: Owm version of Vanilla
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I want each row to choose maximum 1 column, not multiple.
So not:
But each workshop (up to three workshops) can only choose one column.
using Array by column: do I add this as just like you wrote as the question validation? Then it does not work. I can choose multiple workshops as a first choice
using normal Array this does not work either. I can still choose for 1 workshop "first choice" as well as "second choice" as well as "third choice"
But I can only do this in question preview, because group preview will hide both questions.
Tammo ter Hark at Respondage
For Limesurvey reporting, education and customized themes
respondage.nl
In your attached LSS export I see no unique(self) in the "question validation equation" fields. In both questions you have added it to the display condition instead of the validation.