doubt in selection screen -reg

[Former Member]

Hi all

can anybody tell logic behind below that gives the error message wrong entry if we enter year only two or three digits.

What i didnt understand here is how it finds the above wrong entry using simply year+2(1) etc.

SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME.

PARAMETERS : p_month(2) TYPE c,

p_year(4) TYPE c.

SELECTION-SCREEN END OF BLOCK b1.

AT SELECTION-SCREEN.

IF p_year2(1) = ' ' OR p_year3(1) = ' ' OR p_year+2(2) = ' '.

MESSAGE 'Wrong entry in year field! Enter year in 4 characters .......' TYPE 'E'.

ENDIF

thanks in adv

sateesh

[Former Member]

In a particular date either date or month or year cant be zero.

if anyone is zero that is a wrong date.

[amit_khare]

This is called offset.

e.g. if year = 2014

Then year+2(1) means 1.

As it starts with 0.

Regards,

Amit

reward al helpful replies.

[former_member196299]

hi ,

In the code :

IF p_year2(1) = ' ' OR p_year3(1) = ' ' OR p_year+2(2) = ' '.

the logic is used to check if there is a space somethere in the in the value entered. if a space is there, then that means the number is not proper and so the year .And accordingly the error message is passed .

Hope this explains properly to you !!

Regards,

Ranjita

[former_member219399]

Hi,

Here the validation check is for all 4 digits to be filled in the year field. if only 1 or 2 or 3 digits filled, it will give an error message.

With regards,

Vamsi

[Former Member]

This is just to validate if the length of the field p_year is 4, also try this

AT SELECTION-SCREEN.

len = strlen(p_year).
if len ne 4.
  message........
endif.