topic On help-request for in Application Development and Automation Discussions

On help-request for

Former Member — Fri, 16 Jun 2006 20:17:00 GMT

Hello, there

I have written the follwing segment of code:

AT SELECTION-SCREEN.

DATA: IT_PCFILES TYPE FILETABLE,

LV_RC TYPE I.

AT SELECTION-SCREEN ON HELP-REQUEST FOR P_PCPATH.

CALL METHOD CI_GUI_FRONTEND_SERVICES=>FILE_OPEN_DIALOG

CHANGING

FILE_TABLE = IT_PCFILES

RC = LV_RC.

When I tried to compile it, it says:

Field "IT_PCFILES" is unknown. It is neither in one of the specified tables nor defined by a "DATA" statement. "DATA" statement.

However, if I remove the line:

AT SELECTION-SCREEN ON HELP-REQUEST FOR P_PCPATH.

Then the syntax check is fine.

May I know why is that so and how can I fix the code. Many thanks!

Re: On help-request for

Former Member — Fri, 16 Jun 2006 20:18:00 GMT

hi Check this out

http://help.sap.com/saphelp_erp2005/helpdata/en/c5/aa575426ad11d2954d0000e8353423/frameset.htm

declare it in this way

AT SELECTION-SCREEN ON HELP-REQUEST.

The error could be because you might have declared P_PCPATH.

declare it and then use ...

<b>i.e, PARAMETERS: P_PCPATH TYPE STRING.

AT SELECTION-SCREEN ON HELP-REQUEST FOR P_PCPATH.</b>

Regards,

Santosh

Re: On help-request for

RichHeilman — Fri, 16 Jun 2006 20:18:00 GMT

By defining IT_PCFILES inside the AT SELECTION-SCREEN event, you are making them local to that event. Put that at the top of the program. Also use VALUE-REQUEST

<b>report zrich_0001.

DATA: IT_PCFILES TYPE FILETABLE,
LV_RC TYPE I.

parameters: p_pcpath type localfile.


AT SELECTION-SCREEN.</b>


AT SELECTION-SCREEN ON <b>VALUE-REQUEST</b> FOR P_PCPATH. 
CALL METHOD <b>CL</b>_GUI_FRONTEND_SERVICES=>FILE_OPEN_DIALOG
CHANGING
FILE_TABLE = IT_PCFILES
RC = LV_RC.

Regards,

Rich Heilman

Re: On help-request for

RichHeilman — Fri, 16 Jun 2006 20:21:16 GMT

Here is a complete solution.



report zrich_0001 .

data: it_pcfiles type filetable,
      wa_pcfiles like line of it_pcfiles,
      lv_rc type i.

parameters: p_pcpath type localfile.

at selection-screen.

at selection-screen on value-request for p_pcpath.

  call method cl_gui_frontend_services=>file_open_dialog
         changing
            file_table = it_pcfiles
            rc = lv_rc.

  read table it_pcfiles into wa_pcfiles index 1.
  if sy-subrc = 0.
    p_pcpath = wa_pcfiles-filename.
  endif.

Regards,

Rich Heilman

Re: On help-request for

RichHeilman — Fri, 16 Jun 2006 20:23:09 GMT

You can also declare the IT_PCFILES table in that particular event.



report zrich_0001 .


parameters: p_pcpath type localfile.

at selection-screen.

at selection-screen on value-request for p_pcpath.



<b>  data: it_pcfiles type filetable,
        wa_pcfiles like line of it_pcfiles,
        lv_rc type i.</b>

  call method cl_gui_frontend_services=>file_open_dialog
         changing
            file_table = it_pcfiles
            rc = lv_rc.

  read table it_pcfiles into wa_pcfiles index 1.
  if sy-subrc = 0.
    p_pcpath = wa_pcfiles-filename.
  endif.

Regards,

Rich Heilman

Re: On help-request for

Former Member — Fri, 16 Jun 2006 20:56:35 GMT

Hi Anyi Zhu,

Ur code.

AT SELECTION-SCREEN.

DATA: IT_PCFILES TYPE FILETABLE,

LV_RC TYPE I.

U r decalring the variable in the AT SELECTION-SCREEN event.

Thats what the error is Coming.

PUT the declaration part above the AT SELECTION-SCREEN Event.

like this.

DATA: IT_PCFILES TYPE FILETABLE,

LV_RC TYPE I.

AT SELECTION-SCREEN.

or delete the AT SELECTION-SCREEN event.

- Selvapandian Arunachalam

Re: On help-request for

Former Member — Fri, 16 Jun 2006 21:00:37 GMT

Hi,

If you want to get the File browsing option:

use ON VALUE-REQUEST

If want F1 help

Use ON HELP-REQUEST

- Selva