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Reference fields and subforms

How to control reference fields, object generators and subforms in the Web Client via popup and layout parameters.

REFERENZ LOW-CODE / DEVELOPER STAND: JUL 2026 GILT FUER NUCLOS 4.2026.X

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Reference fields / object generators in popups

Opening reference-field entries or calling object generators in popups is configured in the layout editor via the advanced property popupparameter, e.g.:

left=100,top=100,width=600,height=400,status=yes,scrollbars=yes,resizable=yes

Reference-field popup in the Web Client.

The same applies to reference fields in subforms (advanced property of the column). To open as a tab instead of a window:

menubar=yes,toolbar=yes,location=yes,status=yes,scrollbars=yes

Subform records in popups

Via the record's L&F parameters (toolbar context menu: „Open subform records in popup“) using the same popup parameters.

Initial read-only view for subforms

For faster loading of complex layouts, subforms can start read-only (advanced property initialreadonly = true). A double-click or the pencil icon switches to the regular view.

More options

Further tuning: popupparameter = false opens references from subform lists inline; NO_CLOSE = yes in LoVs suppresses auto-close after a reference change.