Validate a screen entry through message

Question

Moderator message: do NOT offer points
Dear experts,
  I have designed one screen containing 10 entries of 10 different fields.
One entry is for amount . I want that amount to be less than 1000.00 and if it is not so it should give message.
   My logic is working fine..but the only problem is that when I make a wrong entry , it should allow me to corrrect it there and there only..
now with message type E , it disables all the fields and other entries are also to be entered again...
and with message type W  and I , it is taking that as a right entry.
  So which message type should I use ? Or any other alternative ?
<<text removed>>
Edited by: Matt on Nov 24, 2008 11:21 AM

Answer 1

For validating single field:
In PAI
field <field1> module check_field1.
" if in module u thro message of type E or W after validating. The field field1 will remain available for input.
For validating multiple fields:
In PAI
chain.
field <field1>.
field <field2>.
field <field3>.
module check_fields.
endchain.
" if in module u thro message of type E or W after validating. The all the fields mentioned within chain endchain will remain available for input.
For validating fields in Table control:
In PAI
loop at itab.
Use any of above two methods
endloop.