oops ALV in background mode

[Former Member]

Hi Experts,

I know this topic is discussed several times but I still have a confusion.

I have created one ALV report using custom container like the usual way. As per my understanding this report shouldn't execute in background

but when I execute the report in background in development system, it's not throwing any error and I am able to get the spool.

Why is this happening? Is there a possibility that if I transport the object to other system I may get error?

Please share your thoughts.

Thanks,

Tiki

[Former Member]

Hi Experts,

I know this topic is discussed several times but I still have a confusion.

I have created one ALV report using custom container like the usual way. As per my understanding this report shouldn't execute in background

but when I execute the report in background in development system, it's not throwing any error and I am able to get the spool.

Why is this happening? Is there a possibility that if I transport the object to other system I may get error?

Please share your thoughts.

Thanks,

Tiki

[former_member201275]

ALV list is possible in background, but ALV grid not.

The FM automatically handles the background mode & switches to ALV list, without you doing anything.

[SimoneMilesi]

It's not true.. it dependes by how you developed the code.

i use CL_GUI_GRID class and manage the background option without any problem.

[Former Member]

Ok... I saw lot of threads about this and thought to try if using custom container works in background mode or not. I was surprised that it worked.

So It shouldn't have any problem if I transport the code to next environment right?

And in which case it's supposed to throw error in background mode, asking just for understanding.

you have any idea??

[SimoneMilesi]

This is my "common code" i use to manage CL_GUI_GRID in background without touching the output screen to define a container

CLASS lcl_event_handler DEFINITION DEFERRED.
 DATA: gr_event_handler      TYPE REF TO lcl_event_handler.
 *---- ALV Grid instance reference
 DATA: gr_alvgrid            TYPE REF TO cl_gui_alv_grid.
 *---- Custom container instance reference
 DATA: gr_splitter_container TYPE REF TO cl_gui_splitter_container,
       gr_container          TYPE REF TO cl_gui_container.
 *---- Header container
 DATA: gr_docking_container  TYPE REF TO cl_gui_docking_container,
       gr_document           TYPE REF TO cl_dd_document.

IN PBO

IF sy-batch = 'X'.
 
 *---- Creating ALV grid within a docking container
       CREATE OBJECT gr_alvgrid
         EXPORTING
           i_parent = gr_docking_container.
 
     ELSE.
 
 *---- Creating Splitted Containers
 *    
       CREATE OBJECT gr_splitter_container
         EXPORTING
           parent  = cl_gui_container=>screen0
           rows    = 1
           columns = 1.
       CALL METHOD gr_splitter_container->set_border
         EXPORTING
           border = cl_gui_cfw=>false.
       CALL METHOD gr_splitter_container->set_row_mode
         EXPORTING
           mode = gr_splitter_container->mode_relative.
       gr_container =
         gr_splitter_container->get_container( row = 1 column = 1 ).
 
 
 *---- Creating ALV Grid instance
       CREATE OBJECT gr_alvgrid
         EXPORTING
           i_parent = gr_container.
 
 
 *---- Preparing document header

       PERFORM prepare_header.
 
     ENDIF.
 
 *-- Creating an instance for the event handler
     CREATE OBJECT gr_event_handler.
 *-- Registering handler methods to handle ALV Grid events
 *   NOTA: Qua vanno registrati eventuali metodi aggiunti per gestire
 *   altri eventi della classe CL_GUI_ALV_GRID.
     SET HANDLER gr_event_handler->handle_double_click  FOR gr_alvgrid.
     SET HANDLER gr_event_handler->handle_hotspot_click FOR gr_alvgrid.
     SET HANDLER gr_event_handler->handle_data_changed  FOR gr_alvgrid.
     SET HANDLER gr_event_handler->handle_data_changed_finished
                                                        FOR gr_alvgrid.
     SET HANDLER gr_event_handler->handle_toolbar       FOR gr_alvgrid.
     SET HANDLER gr_event_handler->handle_user_command  FOR gr_alvgrid.
 
 *-- Preparing layout structure
     PERFORM prepare_layout.
 
 *-- Preparing print structure
     PERFORM prepare_print.
 
 *-- Preparing field catalog
     PERFORM prepare_field_catalog.
 
 *-- Preparing sort criteria table
     PERFORM prepare_sort_criteria.
 
 *-- Prepating filter criteria table
     PERFORM prepare_filter_criteria.
 
 *-- Preparing function codes to exclude from the toolbar
     PERFORM prepare_toolbar_exclude.
 
 *-- Preparing the output for the ALV grid list
 *-- NOTE: set I_BUFFER_ACTIVE = 'X' to speed to the list display
 *-- if the ALV grid uses statically always the same field catalog
     CALL METHOD gr_alvgrid->set_table_for_first_display
       EXPORTING
 *       i_buffer_active               = 'X'
 *       i_structure_name              = 'GS_OUTTAB'
         is_variant                    = gs_variant
         i_save                        = 'A'
         i_default                     = 'X'
         is_layout                     = gs_layout
         is_print                      = gs_print
 *       IT_SPECIAL_GROUPS             =
         it_toolbar_excluding          = gt_exclude[]
 *       IT_HYPERLINK                  =
 *       IT_ALV_GRAPHICS               =
       CHANGING
         it_outtab                     = gt_outtab[]
         it_fieldcatalog               = gt_fieldcat[]
         it_sort                       = gt_sort[]
         it_filter                     = gt_filter[]
       EXCEPTIONS
         invalid_parameter_combination = 1
         program_error                 = 2
         too_many_lines                = 3
         OTHERS                        = 4.
 
 *-- Allows to edit the toolbar
     CALL METHOD gr_alvgrid->set_toolbar_interactive.

[Clemenss]

Hi Tiki,

actually, all ALV, SALV, OO or functiuonal do encapsuling of the grid object. I remember the difference is if it is full-screen (in background converted to list) or not.

If background works in development, then it will work everywhere 🙂

Regards

Clemens

[Former Member]

Thanks Clemens:)