Access the row instance in the onRowSelectionChange callback function

[elliotgonzalez123]

I'd like to propose adding a feature where we can get access to the selected row instance in the onRowSelectionChange callback. Currently, the callback is an updater function that sets the row selection state using and id and a boolean { 1 : true}. It would be incredibly useful if the selected row instance is also available in this callback. This would allow us to add the row.original to another piece of state being managed in the component during the onChange event.

ex:

 onRowSelectionChange: (fn, row) => {
      setRowSelection(fn);
      setSelectedRows(row.original)
    },

This will come in handy when creating tables where selecting a row immediately shows or aggregates data in the UI somewhere. The current solution is to do this in a useEffect:

 React.useEffect(() => {
    if (rowSelection) {
      const rows = table
        .getSelectedRowModel()
        .flatRows.map((row) => row.original);
      setSelectedRows(rows);
    }
  }, [setSelectedRows, rowSelection, table]);

It would be great to be able to remove this useEffect and just do it in the callback. Here is an old discussion on the issue: #2155

[Jdruwe]

I assume this is still an 'issue'?

[TransonQ]

If this feature were implemented, that's great