I have a Summary view interface with tabs at the bottom that each display another Read-Only Grid interface displaying info from related tables. I need to be able to have the information on those tabs to only show the records related to the parent record being viewed on the summary view. I know you can set filters at the Read-Only grid level on the individual interfaces, but at that point there is no parent record to reference so it returns an error. Does anyone have a way around this?
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What do you mean with "but at that point there is no parent record"? Which point? Design time?
You can make that filter conditional using the applyWhen parameter.