TXFAInstancePresentation.DispatchConditionalEvent
Unit: HPDFXFAPresentation
function DispatchConditionalEvent(const WidgetID, Activity: AnsiString): Boolean;
Finds a matching field event with application/x-javascript content type and runs the bounded profile; this.rawValue reads the committed widget value
See Dynamic XFA Instance Presentation for binding and selector rules, supported event syntax, budget defaults, transactional publication, persistence, painting, and compatibility boundaries