"Leslie P. Polzer"
<[email protected]> writes:

>
> Take a look at the on-query slot; just specialize a datagrid
> to use your own function there (which in turn can derive
> the objects to return from the data-class slot, or have
> its own logic to decide between Friends and Enemies).
>
>   Leslie

Thank you for the hint.  It took a few tries but I got it working.

Kind regards,
Wim Oudshoorn.

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