topic Re: ALV combox refresh description in Application Development and Automation Discussions

ALV combox refresh description

Former Member — Sat, 10 Nov 2007 10:05:26 GMT

Hi all,

I've a table with 2 columns : first a combox with identifier ; second the identifier description.

I'd like if possible to refresh in automatic the identifier description at each pick up combox identifier.

Best regards.

Miki

Re: ALV combox refresh description

Sougata — Sat, 10 Nov 2007 12:46:28 GMT

Hi Maurizio,

You might consider doing it as per instuctions below.

First, after you call the method to display the ALV Grid (call method gt_grid-><b>set_table_for_first_display</b>), add the following code as below:

* register ENTER to raise event DATA_CHANGED.
    call method gt_grid->register_edit_event
      exporting
        i_event_id = cl_gui_alv_grid=>mc_evt_modified.

* handle the events of grid after user changes grid data
    set handler go_ref->handle_data_changed for gt_grid.

Define and Implement the method handle_data_changed in your class definition followed by the method implementation as below:

class my_class definition.
 public section.
   methods: handle_data_changed for event data_changed of cl_gui_alv_grid
                                                  importing er_data_changed.
endclass

  method handle_data_changed.
    data: ls_good type lvc_s_modi.

    data_changed = abap_true.
    error_in_data = space.

* loop over table MT_GOOD_CELLS to check all values that are changed by user
    loop at er_data_changed->mt_good_cells into ls_good.
      case ls_good-fieldname.
        when 'COMBOX_ID'.
*         perform your_checks_here changing error_in_data.
*         Also Select/Move the description of the COMBOX_ID selected by user and 
*         pass it to the corresponding COMBOX_DESCRIPTION. Modify the main 
*         internal tab.that you pass to set_table_for_first_display
      endcase.
    endloop.

* display application log if an error has occured.
    if error_in_data = abap_true.
      call method er_data_changed->display_protocol.
    else.
*  No error in data is found and your main internal table is ready with all 
*  descriptions already updated - now refresh the ALV Grid
    call method gt_grid->refresh_table_display.
   endif.
  endmethod.                    "handle_data_changed

Hope this solves the problem.

Don't forget to reward points.

Cheers,

Sougata.

Re: ALV combox refresh description

Former Member — Sun, 11 Nov 2007 08:05:06 GMT

Hi,

I've used REUSE_ALV_EVENTS_GET function con event DATA_CHANGED and corresponding Form for changing the description content of alv internal table(release 46c) but with the debugging the event not trigger.

Best regards.

Miki

Re: ALV combox refresh description

Sougata — Sun, 11 Nov 2007 10:02:25 GMT

Hi,

I suggest you don't use those Function Modules for ALV display but use method SET_TABLE_FOR_FIRST_DISPLAY of class CL_GUI_ALV_GRID to output your ALV grid. The reason being that event CHECKED_DATA_CHANGED will work every time user changes any data on the grid.

Then use the code I've provided in my previous post.

<b>I've spent a lot of time on your problem so please don't forget to reward points.</b>

Cheers,

Sougata.