Check a range of values in the pai section of a dynpro

Question

Hi,
I have a week timetable, and for each day the user has to introduce a range of hours. I need to control that the hours the user introduces is in a correct format (hh:mm).
I've seen that it's possible to set the valid range of values of an element using a field section on the dynpro's PAI (Input checks in the flow logic). Something like this:
chain
field: field1, field2, ...
values between 00:00 to 23:59
endchain
But I don't know how can I use this to set a range of values in the time format.
Is it possible?
thanks in advance

Answer 1

see you can create a module like the coding done inside of the form validate_time this.you can run this code to see if it solves your problem.
Report ZANID_TEST2 Message-ID ZM.
parameters: p_time(5).
start-of-selection.
perform validate_time.
*&      Form  validate_time
form validate_time.
data: d_hours(2),
      d_minutes(2).
data: hours type i,     
      minutes type i.
split p_time at ':' into d_hours d_minutes.
hours = d_hours.
minutes = d_minutes.
if hours > 24 or hours < 0.
    message e307 with 'Invalid Hour'.
endif.
if minutes > 60 or minutes < 0.
    message e307 with 'Invalid Minutes'.
endif.
endform.                    " validate_time