Call user command / PAI from ALV

Question

Hello,
Is there a possibility to call a user command from within an ALV method? I want the PAI module of the ALV's screen to run.
best regards
Roland

Answer 1

Hi,
Yes you can make an ALV interactive which will execute is PAI (USER COMMAND) when user performs any action.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
   EXPORTING
     i_callback_program                = sy_repid       " report id
     i_callback_pf_status_set          = 'PF'           " for PF-STATUS
     i_callback_user_command           = 'COMMAND'      " for User-Command
     is_layout                         = wa_layout      " for layout
     it_fieldcat                       = it_field       " field catalog
   TABLES
     t_outtab                          = it_final      " internal table
   EXCEPTIONS
     program_error                     = 1
     OTHERS                            = 2.
When you double-click on any cell of alv grid, use this code to fetch the data of the line that you currently clicked, its working:-
When you double click on the ALV grid line, you will have sy-ucomm = '&IC1'.
So when you define a i_callback_user_command for the FM reuse_alv_grid_display, and create it as:-
FORM command USING ucomm LIKE sy-ucomm selfield TYPE slis_selfield.
  DATA : ok_code TYPE sy-ucomm.
  ok_code = ucomm.
  CASE ok_code.
    WHEN '&IC1'. "for double click on alv grid line
      " your code
  ENDCASE.
ENDFORM.
As you have used selfield TYPE slis_selfield, the field selfield will hold all the values.
To know on which row you have clicked and to retain that line, use code:-
Suppose you are currently displaying data from internal table itab and corresponding to it you have work area wa.
read table itab into wa index selfield-tabindex. "index value of line you clicked
" now you have the contents of line that you double clicked currently
Now to know the field name that you clicked, use:-
selfield-fieldname " will fetch you the name of field that you clicked
Now using the work-area and the name of field that you clicked, you can easily make out the details of the field i.e., field name and field value and you can code as per your requirement.
Also you can refer this wiki by me on:-
ALV Grid Display with checkbox to process selected records at runtime
https://www.sdn.sap.com/irj/scn/wiki?path=/display/snippets/alv%252bgrid%252bdisplay%252bwith%252bcheckbox%252bto%252bprocess%252bselected%252brecords%252bat%252bruntime
To have checkbox with each record in alv and display on those records on next display which were selected by the user on initial grid.
Hope this helps you.
Regards,
Tarun
Edited by: Tarun Gambhir on Mar 6, 2009 2:48 PM