By Peter Morris

If you have ever tried reading constraints from an ECO model you have probably noticed by now that there are lots of auto-generated multiplicity constraints.

I personally like to add my own constraints for multiplicity so that I can specify a more concise error message

    Customer required:customer <> nil

To disable multiplicity constraints you need to attach a .net attribute to your EcoSpace like so

[UmlTaggedValue("Eco.GenerateMultiplicityConstraints", "False")]
public class ProjectManagerEcoSpace: Borland.Eco.Handles.DefaultEcoSpace

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