@Override
    public void setValueAt(Object o, int row, int col)
    {
        StockItem s = info.get(row);
        switch (col)
        {
           case 0: s.getChargeNo(); break;
           case 1: s.getMaterial().getName(); break;
           case 2: s.getCoilType().getThickness(); break;
           case 3: s.getLength(); break;
           case 4: s.getCoilType().getWidth(); break;
           case 5: s.getStockQuantity(); break;
        }
    }