topic refreshing the screen in Application Development and Automation Discussions

refreshing the screen

Former Member — Mon, 08 Aug 2005 23:20:43 GMT

hi,

i'm trying to throw an error message in the selection screen if there is any unwanted selection in the selection screen and im doing that in at selection-screen. it works well but the screen is not being refreshed, every time it shows an error message i need to refresh the screen .how can i do this. i'm not using modification groups.

thanks,

ravi.

Re: refreshing the screen

Former Member — Mon, 08 Aug 2005 23:56:54 GMT

If are validating at selection screen event, why dont you initialize your selection fields before your pop-up the error message?

Re: refreshing the screen

RichHeilman — Tue, 09 Aug 2005 00:24:34 GMT

As Shankar said, Try clearing that value before you throw the message.

Parameters: p_datum type sy-datum.

at selection-screen.

if p_datum > sy-datum.
clear p_datum.
message E000(00) with 'Date must be before today'.
endif.

Regards,

Rich Heilman

Re: refreshing the screen

Former Member — Tue, 09 Aug 2005 03:45:21 GMT

Hi Ravi,

But why exactly do you want to refresh ur screen ?

If you refresh the screen before throwing the error, the user may or may not understand the error any more, for he doesnt see the values entered by him anymore.

Pls tell as to why you want to do this.

Reg,

PP.

Re: refreshing the screen

jayanthi_jayaraman — Tue, 09 Aug 2005 05:04:17 GMT

Hi,

Here is the sample code for refreshing the screen.Kindly reward points,if it is useful.

You can accomplish this with a RFC enabled Function module.

1. Create a function module. The only functionality will be to wait for 10 secs.

2. Create a subroutine which will set a user-command.

3. and at user-command call the function module.

Below is the code, I found on the web. It is quite simple..

DATA: ZNUM LIKE SY-TABIX.

: GET TIME.

: WRITE: /01 'Update Number:', ZNUM, SY-UZEIT.

: CALL FUNCTION 'Z_WAIT_30_SECS'

: STARTING NEW TASK 'IF'

: PERFORMING START_REFRESH ON END OF TASK.

: AT USER-COMMAND.

: IF SY-UCOMM = 'REFR'.

: SY-LSIND = SY-LSIND - 1.

: ADD 1 TO ZNUM.

: GET TIME.

: WRITE: /01 'Update Number:', ZNUM, SY-UZEIT.

: CALL FUNCTION 'Z_WAIT_30_SECS'

: STARTING NEW TASK 'IF'

: PERFORMING START_REFRESH ON END OF TASK.

: ENDIF.

: FORM START_REFRESH USING TASKNAME.

: SET USER-COMMAND 'REFR'.

: ENDFORM. "

: FUNCTION Z_WAIT_30_SECS.

: DATA: ZTIME LIKE SY-UZEIT.

: GET TIME.

: ZTIME = SY-UZEIT + 30.

: DO.

: GET TIME.

: IF SY-UZEIT >= ZTIME.

: EXIT.

: ENDIF.

: ENDDO.

: ENDFUNCTION.

Re: refreshing the screen

andreas_mann3 — Tue, 09 Aug 2005 06:01:25 GMT

Hi ravi,

use:

AT SELECTION-SCREEN <b>ON</b> p_datum. 
  if p_datum > sy-datum.
   message E000(00) .
  endif.

Andreas

Re: refreshing the screen

Former Member — Tue, 09 Aug 2005 06:41:03 GMT

Hi,

In the

AT SELECTION-SCREEN ON s_budat.

perform validation.

http://www.sapdevelopment.co.uk/reporting/selscr/selscrhome.htm