topic Re: Overwriting the ALV refresh method in Application Development and Automation Discussions

Overwriting the ALV refresh method

Former Member — Wed, 14 May 2008 07:46:25 GMT

Hello Gurus, i need to refresh my ALV after modifications in the database. Can i overwrite the refresh method ? because i have to refresh the internal table too.

The refresh button won`t work.

I will reward points.

Re: Overwriting the ALV refresh method

Former Member — Wed, 14 May 2008 07:48:27 GMT

Hi,

The following method call is used to refresh the data displayed within an ALV object grid:

CALL method gd_tree->REFRESH_TABLE_DISPLAY.

CALL METHOD gd_tree->set_table_for_first_display

EXPORTING

is_layout = gd_layout

CHANGING

it_fieldcatalog = gd_fieldcat

it_sort = it_sortcat

it_outtab = it_report.

CALL method gd_tree->REFRESH_TABLE_DISPLAY.

CALL METHOD cl_gui_cfw=>flush.

Regards,

Bhaskar

Re: Overwriting the ALV refresh method

Former Member — Wed, 14 May 2008 07:51:53 GMT

Hi,

Use below code

DATA : DATA ref1 TYPE REF TO cl_gui_alv_grid.

CALL FUNCTION 'GET_GLOBALS_FROM_SLVC_FULLSCR'

IMPORTING

e_grid = ref1.

CALL METHOD ref1->check_changed_data.

CALL METHOD ref1->refresh_

do like this

data: o_alv type ref to CL_SALV_TABLE.

then use the method

CALL METHOD o_alv->refresh

EXPORTING

refresh_mode = if_salv_c_refresh=>soft.

Another method:

If you are using the function module ALV, you need to set the REFRESH flag in the USER_COMMAND routine. HEre is an example.

code

Call ABAP List Viewer (ALV)

call function 'REUSE_ALV_GRID_DISPLAY'

exporting

i_callback_program = repid

i_callback_user_command = 'HANDLE_USER_COMMAND'

it_fieldcat = ifc

tables

t_outtab = itab.

endform.

***********************************************************************

FORM handle_User_Command *

***********************************************************************

form handle_user_command using r_ucomm like sy-ucomm

rs_selfield type slis_selfield.

case r_ucomm.

when '&IC1'.

DO Something

rs_selfield-refresh = 'X'.

endcase.

endform.

Regards,

Shiva K

Re: Overwriting the ALV refresh method

uwe_schieferstein — Wed, 14 May 2008 08:07:36 GMT

Hello Ioan

To be honest I do not understand where your problem is. If you need to distinguish between unmodified and modified ALV list data simply use two internal tables, e.g.:

1.) Select data from DB table and fill GT_OUTTAB_PBO.

2.) Set: GT_OUTTAB_PAI = GT_OUTTAB_PBO. The PAI itab is displayed on the editable ALV list

3.) User changes values of GT_OUTTAB_PAI and pushes SAVE button.

4.) Retrieve current PAI data using method go_grid->check_changed_data.

5.) If GT_OUTTAB_PAI <> GT_OUTTAB_PBO then execute SAVE routine with DB update. Set GT_OUTTAB_PAI = GT_OUTTAB_PBO.

6.) The SAVE routine is executed at PAI of your screen followed by PBO. Then the current GT_OUTTAB_PAI data are displayed which should be identical to the records in the DB table.

Regards

Uwe

Re: Overwriting the ALV refresh method

Former Member — Wed, 14 May 2008 11:56:37 GMT

I have two transactions: one for displaying (using ALV) and one for editing (using ALV), a DB table.

They are running both at the same time in two different sessions. After the user alters the DB table in the edit sessions / transaction, i must refresh the display ALV in the display session so i can see the new DB table.

The problem is that if i press the refresh button i won`t refresh with the new DB table. I have tried to write something like this:


CLASS lcl_event_receiver DEFINITION.
  
PUBLIC SECTION.

    METHODS:
    on_data_changed for event data_changed of cl_gui_alv_grid
       importing er_data_changed.

    METHODS:
    toolbar_handler FOR EVENT toolbar OF cl_gui_alv_grid
    importing
      E_OBJECT
      E_INTERACTIVE.

ENDCLASS. 
......
CLASS lcl_event_receiver IMPLEMENTATION.
.....
  method toolbar_handler.
    SELECT * FROM zianexe into TABLE itab. " Refresh the itab with the new DB data
  endmethod.

When i press the refresh button the "toolbar" event is triggered and the "toolbar_handler" method called.

Now my problem is that i have to press two times the refresh button for my ALV to be displayed with the new DB table.

I hope its clear.

Thank you for the interest.