automatic refresh in alv grids

Hi,

In ALV, to refresh the table you have to call the method "refresh_table_display".

It has the syntax very similar to creating the table.

It has two parameters. In the first one, you can mention if you want to refresh only the data (the icons are not refreshed)

or

if you want to refresh only the icons around the grid (the data is not refreshed - this option is mostly not used in day to day applications).

the synatx is :-

call method grid (name of grid )->refresh_table_display

exporting

IS_STABLE = <STRUCT OF TYPE LVC_S_STBL> (THIS IS FOR DATA REFRESHING)

I_SOFT_REFRESH = <VARIABLE OF CHAR 01> (THIS IS FOR ICON REFRESHING).

Regards

Sudheer

Is the data ready in the internal table for grid2, by the time you have called

call method grid2->refresh_table_display?

Regards,

Ravi

Hello Ingo

It is important to realise that pushing a toolbar button does <b>NOT </b>trigger PAI of the dynpro where the ALV list is displayed.

In order to refresh the display of the other two ALV grids you need to pass PAI (followed by PBO). How to do that? There are at least two possible ways:

(1) You handle the SAVE command in your method HANDLE_USER_COMMAND. Within this method you update the internal tables for grid2 and grid3 depending on the contents of grid1. At the end of this method you call method CL_GUI_CFW=>set_new_ok_code( 'REFRESH' ). This will trigger PAI of the dynpro. In the PAI module (e.g. USER_COMMAND_0100) you could write the following coding:

  CASE gd_okcode.
    WHEN 'REFRESH'.  
      go_grid2->refresh_table_display( ).
      go_grid3->refresh_table_display( ).
...
  ENDCASE.

(2) You handle the SAVE command in your method HANDLE_USER_COMMAND and call method CL_GUI_CFW=>set_new_ok_code( 'REFRESH' ) without updating the itab2 and itab3 here. The updating of these itabs occurs in the PAI module.

The following sample report shows you the second approach. On the first ALV grid customers are displayed. If you double-click on a single customer its sales areas (if any) are displayed in the second ALV list.

*&---------------------------------------------------------------------*
*& Report  ZUS_SDN_TWO_ALV_GRIDS
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

REPORT  zus_sdn_two_alv_grids.




DATA:
  gd_okcode        TYPE ui_func,
*
  go_docking       TYPE REF TO cl_gui_docking_container,
  go_splitter      TYPE REF TO cl_gui_splitter_container,
  go_cell_top      TYPE REF TO cl_gui_container,
  go_cell_bottom   TYPE REF TO cl_gui_container,
  go_grid1         TYPE REF TO cl_gui_alv_grid,
  go_grid2         TYPE REF TO cl_gui_alv_grid,
  gs_layout        TYPE lvc_s_layo.


DATA:
  gt_knb1          TYPE STANDARD TABLE OF knb1,
  gt_knvv          TYPE STANDARD TABLE OF knvv.





*---------------------------------------------------------------------*
*       CLASS lcl_eventhandler DEFINITION
*---------------------------------------------------------------------*
*
*---------------------------------------------------------------------*
CLASS lcl_eventhandler DEFINITION.

  PUBLIC SECTION.
    CLASS-METHODS:
      handle_double_click FOR EVENT double_click OF cl_gui_alv_grid
        IMPORTING
          e_row
          e_column
          es_row_no
          sender.


ENDCLASS.                    "lcl_eventhandler DEFINITION



*---------------------------------------------------------------------*
*       CLASS lcl_eventhandler IMPLEMENTATION
*---------------------------------------------------------------------*
*
*---------------------------------------------------------------------*
CLASS lcl_eventhandler IMPLEMENTATION.

  METHOD handle_double_click.
*   define local data
    DATA:
      ls_knb1      TYPE knb1.

    CHECK ( sender = go_grid1 ).

    READ TABLE gt_knb1 INTO ls_knb1 INDEX e_row-index.
    CHECK ( ls_knb1-kunnr IS NOT INITIAL ).

    CALL METHOD go_grid1->set_current_cell_via_id
      EXPORTING
*        IS_ROW_ID    =
*        IS_COLUMN_ID =
        is_row_no    = es_row_no.


*   Triggers PAI of the dynpro with the specified ok-code
    CALL METHOD cl_gui_cfw=>set_new_ok_code( 'DETAIL' ).



  ENDMETHOD.                    "handle_double_click

ENDCLASS.                    "lcl_eventhandler IMPLEMENTATION






START-OF-SELECTION.

  SELECT        * FROM  knb1 INTO TABLE gt_knb1
         WHERE  bukrs  = '1000'.


* Create docking container
  CREATE OBJECT go_docking
    EXPORTING
      parent                      = cl_gui_container=>screen0
      ratio                       = 90
    EXCEPTIONS
      OTHERS                      = 6.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.


* Create splitter container
  CREATE OBJECT go_splitter
    EXPORTING
      parent            = go_docking
      rows              = 2
      columns           = 1
*      NO_AUTODEF_PROGID_DYNNR =
*      NAME              =
    EXCEPTIONS
      cntl_error        = 1
      cntl_system_error = 2
      OTHERS            = 3.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.

* Get cell container
  CALL METHOD go_splitter->get_container
    EXPORTING
      row       = 1
      column    = 1
    RECEIVING
      container = go_cell_top.
  CALL METHOD go_splitter->get_container
    EXPORTING
      row       = 2
      column    = 1
    RECEIVING
      container = go_cell_bottom.

* Create ALV grids
  CREATE OBJECT go_grid1
    EXPORTING
      i_parent          = go_cell_top
    EXCEPTIONS
      OTHERS            = 5.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.


* Set event handler
  SET HANDLER: lcl_eventhandler=>handle_double_click FOR go_grid1.


  CREATE OBJECT go_grid2
    EXPORTING
      i_parent          = go_cell_bottom
    EXCEPTIONS
      OTHERS            = 5.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.


* Display data
  gs_layout-grid_title = 'Customers'.
  CALL METHOD go_grid1->set_table_for_first_display
    EXPORTING
      i_structure_name = 'KNB1'
      is_layout        = gs_layout
    CHANGING
      it_outtab        = gt_knb1
    EXCEPTIONS
      OTHERS           = 4.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.

  gs_layout-grid_title = 'Customers Details (Sales Areas)'.
  CALL METHOD go_grid2->set_table_for_first_display
    EXPORTING
      i_structure_name = 'KNVV'
      is_layout        = gs_layout
    CHANGING
      it_outtab        = gt_knvv  " empty !!!
    EXCEPTIONS
      OTHERS           = 4.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.


* Link the docking container to the target dynpro
  CALL METHOD go_docking->link
    EXPORTING
      repid                       = syst-repid
      dynnr                       = '0100'
*      CONTAINER                   =
    EXCEPTIONS
      OTHERS                      = 4.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.


* NOTE: dynpro does not contain any elements
  CALL SCREEN '0100'.
* Flow logic of dynpro (does not contain any dynpro elements):
*
*PROCESS BEFORE OUTPUT.
*  MODULE STATUS_0100.
**
*PROCESS AFTER INPUT.
*  MODULE USER_COMMAND_0100.



END-OF-SELECTION.

*&---------------------------------------------------------------------*
*&      Module  STATUS_0100  OUTPUT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
MODULE status_0100 OUTPUT.
  SET PF-STATUS 'STATUS_0100'.  " contains push button "DETAIL"
*  SET TITLEBAR 'xxx'.


* Refresh display of detail ALV list
  CALL METHOD go_grid2->refresh_table_display
*    EXPORTING
*      IS_STABLE      =
*      I_SOFT_REFRESH =
    EXCEPTIONS
      OTHERS         = 2.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.


ENDMODULE.                 " STATUS_0100  OUTPUT

*&---------------------------------------------------------------------*
*&      Module  USER_COMMAND_0100  INPUT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
MODULE user_command_0100 INPUT.

  CASE gd_okcode.
    WHEN 'BACK' OR
         'END'  OR
         'CANC'.
      SET SCREEN 0. LEAVE SCREEN.

*   User has pushed button "Display Details"
    WHEN 'DETAIL'.
      PERFORM entry_show_details.

    WHEN OTHERS.
  ENDCASE.

  CLEAR: gd_okcode.

ENDMODULE.                 " USER_COMMAND_0100  INPUT

*&---------------------------------------------------------------------*
*&      Form  ENTRY_SHOW_DETAILS
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM entry_show_details .
* define local data
  DATA:
    ld_row      TYPE i,
    ls_knb1     TYPE knb1.

  CALL METHOD go_grid1->get_current_cell
    IMPORTING
      e_row = ld_row.

  READ TABLE gt_knb1 INTO ls_knb1 INDEX ld_row.
  CHECK ( syst-subrc = 0 ).

  SELECT        * FROM  knvv INTO TABLE gt_knvv
         WHERE  kunnr  = ls_knb1-kunnr.



ENDFORM.                    " ENTRY_SHOW_DETAILS

Regards

Uwe

Hi all,

I have one screen(100),which contains records.User can select any one record and click 'Details' button.Then it will take to screen 110.When I am coming back to screen 110 again.The previously selected row is again in selected mode only.Now if I am selecting another row and click the 'Detail' button.I am getting the error saying that 'Please select one record'.In debugging mode also I checked using the FM get_current_cell but nothing is getting selected surprisingly.

Even I used CALL METHOD grid->refresh_table_display in the PBO of screen 100.

Below is the code I used in PBO of screen 100

ODULE STATUS_0100 OUTPUT.

SET PF-STATUS 'PF100'.

SET TITLEBAR 'TITLE'.

DATA: G_CONSISTENCY_CHECK TYPE CHAR1.

DATA: G_EXCLUDE TYPE UI_FUNCTIONS.

IF container100 IS INITIAL.

*ex_FUNCTIONS-

*-- Check execution mode (foreground/background)

IF cl_gui_alv_grid=>offline( ) IS INITIAL.

CREATE OBJECT CONTAINER100

EXPORTING CONTAINER_NAME = 'CONTAINER100'.

CREATE OBJECT GRID

EXPORTING I_PARENT = CONTAINER100.

CALL METHOD GRID->SET_TABLE_FOR_FIRST_DISPLAY

EXPORTING

I_BYPASSING_BUFFER = 'X'

I_BUFFER_ACTIVE = ''

I_CONSISTENCY_CHECK = G_CONSISTENCY_CHECK

• IT_TOOLBAR_EXCLUDING = G_EXCLUDE

IT_TOOLBAR_EXCLUDING = IT_TOOLBAR

• I_STRUCTURE_NAME =

IS_VARIANT = gs_layout

I_SAVE = 'A'

I_DEFAULT = 'X'

IS_LAYOUT = X_LAYOUT

• IS_PRINT =

• IT_SPECIAL_GROUPS =

• IT_TOOLBAR_EXCLUDING = IT_TOOLBAR

• IT_HYPERLINK =

• IT_ALV_GRAPHICS =

• IT_EXCEPT_QINFO =

CHANGING

IT_OUTTAB = IT_YAPOHDR_MAIN[]

IT_FIELDCATALOG = IT_FIELDCAT[].

• IT_SORT =

• IT_FILTER =

• EXCEPTIONS

• INVALID_PARAMETER_COMBINATION = 1

• PROGRAM_ERROR = 2

• TOO_MANY_LINES = 3

• others = 4.

ENDIF.

*--Register enter key for data changed event

• CALL METHOD grid->set_ready_for_input

• EXPORTING i_ready_for_input = 0.

create object event_receiver.

• Register the 'hotspot' event handler method dynamically...

• set handler event_receiver->handle_hotspot_click for grid.

• Register the User Command event handler method dynamically...

• set handler event_receiver->handle_user_command for grid.

• Register the User Command event handler method dynamically...

• set handler event_receiver->handle_data_changed for grid.

else.

CALL METHOD grid->refresh_table_display.

endif.

ENDMODULE. " STATUS_0100 OUTPUT

The below is the code I used in PAI of screen 110.

MODULE USER_COMMAND_0110 INPUT.

DATA : LT_DETAILS_MAIN LIKE YAPOPLN_ITM OCCURS 0 WITH HEADER LINE,

LV_POP TYPE C,

APPROVE.

CASE SY-UCOMM.

WHEN 'BACK'.

CALL METHOD grid->REFRESH_TABLE_DISPLAY.

CALL METHOD grid->GET_FRONTEND_FIELDCATALOG.

LEAVE TO SCREEN 0.

WHEN 'EXIT'.

LEAVE TO SCREEN 0.

Please Let me know if there is any solution.

Thanks,

Balaji