sample of M/D with webcore

BIZ TMS XData
9

You code seems to be generated by Data Modeler, so in this case you can ask Data Modeler to add the many-valued association in this section:

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Select and check the Many-Valued Association you want to add to mapping and it will be generated. In the case of your mapping, you have this:

    [ManyValuedAssociation([TAssociationProp.Lazy], CascadeTypeAllRemoveOrphan)]
    FDOC_MOV_MAG_R: Proxy<TList<TDOC_MOV_MAG_R>>;
    function Get_DOC_MOV_MAG_R: TList<TDOC_MOV_MAG_R>;

But then in your mapping you didn't add the ForeignJoin column, which you should do, as specified here: https://download.tmssoftware.com/business/aurelius/doc/web/manyvaluedassociation.html