Datagrid SelectionChanged issues

[David Bovill]

>From the docs

on selectionChanged pHilitedIndex, pPrevHilitedIndex
>     put the dgDataOfIndex [ pHilitedIndex ] of me into theSelDataA
>     uiViewRecordOfID theSelDataA["id"]
> end selectionChanged


The script in the behavior of the datagrid is:


> private command _SelectionChanged pPreviouslyHilitedIndexes
>     dispatch "selectionChanged" with sHilitedIndexes,
> pPreviouslyHilitedIndexes
> end _SelectionChanged
>

And I am having problems with old / new values when setting the dgHilite of
the dgControl from a card script, where pHilitedIndex is empty and "the
dgHilitedLine of the dgControl" is the pPrevHilitedIndex. Ho can I get
the value
for pHilitedIndex given a change of the selection initiated by "setting the
dgHilite"?