Update new fields in table control prior to validation

Hello,

I'm modifying a dynpro application with the addition of two fields to an internal table linked to a table control( e.g. item level table).  These fields(in entire table) are not updated when I get to my validation routine.  I need to update this entire item level table at ENTER or SAVE so I can determiine if there have been any duplicate entries in these new fields.   The validation routine is within a Loop with CHAIN on these fields in PAI so I need all screen entries updated prior to validation.  Any ideas?

Thank you,

JR