adding textboxes dynamically

Hi ,
in my application I have table with four clumns
id         descdription   quantity               price
txtbx1     txtbxdesc1       txtbxquant1     txtbxprice1
txtbx2    txtbxdesc2       txtbxquant 2    txtbxprice2
txtbx3    txtbxdesc3       txtbxquant3     txtbxprice3
txtbx4   txtbxdesc4     txtbxquant4    txtbxprice4
txtbx5     txtbxdesc5     txtbxquant5    txtbxprice5
                      & ...