I need some way of selecting a cascadeFrom relationship other than the Id, because there is a dynamic list of cascading dropdowns (see illustration below).
Table
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Row 1 [ Dropdown 1 ] [ Dropdown 2 ] [ Dropdown 3 ] [ Dropdown 4 ]
Row 2 [ Dropdown 1 ] [ Dropdown 2 ] [ Dropdown 3 ] [ Dropdown 4 ]
Row 3 [ Dropdown 1 ] [ Dropdown 2 ] [ Dropdown 3 ] [ Dropdown 4 ]
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[ Add more rows ]
Table
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Row 1 [ Dropdown 1 ] [ Dropdown 2 ] [ Dropdown 3 ] [ Dropdown 4 ]
Row 2 [ Dropdown 1 ] [ Dropdown 2 ] [ Dropdown 3 ] [ Dropdown 4 ]
Row 3 [ Dropdown 1 ] [ Dropdown 2 ] [ Dropdown 3 ] [ Dropdown 4 ]
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[ Add more rows ]