Restart F8 function in 'AT SELECTION-SCREEN'

[Former Member]

Hello Experts,

I am developing a report with a selection screen:

on 'AT SELECTION-SCREEN', validation is performed and error message(' E ') is shown if no record is retrieved based on selection:

Question:

After i input data in the selection screen ( force input not to retrieved record ), i pressed F8 ( execute ). the error message is shown.

i corrected that data and just press 'ENTER' key. No error message was shown since a record was retrieved.. but the problem is, it now continues execution on 'START-OF-SELECTION'.

My needs is only the F8 ( execute ) key should be able to execute 'START-OF-SELECTION'.

is there a way i can 'REFRESH'  the F8 whenever an Error is encountered in 'AT SELECTION-SCREEN'?

thanks a lot!

Carl

[Former Member]

Hi Carl,

You can check the sy-ucomm = 'ONLI' to check if 'EXECUTE' or F8 was pressed. Please refer the below sample code:

   at selection-screen on S_MATNR.
  if sy-ucomm = 'ONLI'.

     V_FLAG = 'X'.
  IF S_matnr is initial.
    message 'Error' type 'E'.
  ENDIF.
  ENDIF.

start-of-selection.
if      V_FLAG = 'X'

select * into table it_mara from mara up to 5 rows where matnr in s_matnr.
  loop at it_mara into wa_mara.
    write:/ wa_mara-matnr.
  endloop.

endif.

let me know if this works for you .

Regards,

Deepak.

[raymond_giuseppi]

First, declare the scren field structure with statement TABLES sscrfields in global data (start of report or top include)

Then before raising the error message, save current sscrfields-ucomm to a save variable (multiple values, can be ONLI, SJOB or PRIN). And when there is no longer any error, if the save variable is not initial, move it back to sscrfields-ucomm. You could clear the save variable at INITIALIZATION and/or START-OF-SELECTION.

NB: Testing SY-UCOMM is not good practice on selection screen since R3 4.5B.

Regards,

Raymond