Event Link_click

[Former Member]

Hello!!

I have a problem because when I click on the button-luggweight. I can't see any message so my program can't detect any event.

I think that in my code I forget something but I don't know what. Anybody can help me, please?

ZBC405_INCLUDE_CLASS

CLASS LCL_HANDLER DEFINITION.
  PUBLIC SECTION.
    CLASS-METHODS:
    ON_LINK_CLICK
    FOR EVENT LINK_CLICK OF CL_SALV_EVENTS_TABLE
    IMPORTING
       ROW
       COLUMN.
ENDCLASS.  
CLASS LCL_HANDLER IMPLEMENTATION.
  METHOD ON_LINK_CLICK.
    CASE COLUMN.
      WHEN 'LUGGWEIGHT'.
        MESSAGE I041.
ENDCASE.
ENDMETHOD.
ENDCLASS.

_____________________________________

ZBC405_05_COLUM_TOP

TABLES: SBOOK,SCARR,SFLIGHT.
TYPE-POOLS: COL,ICON.

TYPES: BEGIN OF ST_BOOK.
        INCLUDE STRUCTURE SBOOK.

TYPES:  IT_CELL_TYPES TYPE SALV_T_INT4_COLUMN,
        IT_HYPERLINK TYPE SALV_T_INT4_COLUMN,
        URL TYPE SERVICE_RL,
        END OF ST_BOOK.
DATA: IT_BOOK TYPE TABLE OF ST_BOOK.
DATA: WA_BOOK LIKE LINE OF IT_BOOK,
          WA_CELL_TYPES LIKE LINE OF WA_BOOK-IT_CELL_TYPES.
DATA: GR_ALV TYPE REF TO CL_SALV_TABLE,
      LR_COLUMNS TYPE REF TO CL_SALV_COLUMNS_TABLE,
      LR_COLUMN TYPE REF TO CL_SALV_COLUMN_TABLE.

__________________________________________________________

ZBC405_05_COLUMN_PROGRAM

SELECT * FROM SBOOK INTO CORRESPONDING FIELDS OF WA_BOOK
                      WHERE CARRID = M_CARRID.
    INSERT WA_BOOK INTO TABLE IT_BOOK.
  ENDSELECT.
CALL METHOD CL_SALV_TABLE=>FACTORY
          EXPORTING
                 LIST_DISPLAY   = IF_SALV_C_BOOL_SAP=>FALSE
*             R_CONTAINER    =
*             CONTAINER_NAME =
           IMPORTING
                 R_SALV_TABLE   = GR_ALV
           CHANGING
                  T_TABLE        = IT_BOOK.
PERFOM PESO.
FORM PESO.

  LOOP AT IT_BOOK INTO WA_BOOK.
    IF WA_BOOK-LUGGWEIGHT = 0
        AND WA_BOOK-WUNIT = 'KG'
        AND WA_BOOK-SMOKER = ' '.

      CLEAR WA_CELL_TYPES.

      WA_CELL_TYPES-COLUMNNAME = 'LUGGWEIGHT'.
      WA_CELL_TYPES-VALUE = IF_SALV_C_CELL_TYPE=><b>BUTTON.</b>
      APPEND WA_CELL_TYPES TO WA_BOOK-IT_CELL_TYPES.
    ENDIF.

    MODIFY IT_BOOK FROM WA_BOOK TRANSPORTING IT_CELL_TYPES.
  ENDLOOP.

  LR_COLUMNS = GR_ALV->GET_COLUMNS( ).
  TRY.
      LR_COLUMNS->SET_CELL_TYPE_COLUMN( VALUE = 'IT_CELL_TYPES' ).
    CATCH CX_SALV_DATA_ERROR.
  ENDTRY.
  TRY.
      CALL METHOD GR_ALV->GET_EVENT
        RECEIVING
          VALUE = LR_EVENT.
    CATCH CX_SALV_DATA_ERROR.
  ENDTRY.
    SET HANDLER LCL_HANDLER=>ON_LINK_CLICK
  FOR LR_EVENT.



ENDFORM.                    "PESO

thanks a lot.

[Former Member]

Where have you instantiated your local class LCL_HANDLER

[marcelo_ramos1]

Hi Ana,

Take a look at the program SALV_DEMO_TABLE_EVENTS, it's a Demonstration of Event In ALV Model. It does what you want.

<b>Don't forget to reward points for useful answers.</b>

Regards.

Marcelo Ramos

[marcelo_ramos1]

Hi Ana,

See the follow my example, it was based on 'SALV_DEMO_TABLE_EVENTS.

1 - It seems you forgetting to create a object of your class like

DATA: gr_events TYPE REF TO lcl_handle_events.

2 - You must instantiate this object like

CREATE OBJECT gr_events.

3 - You can set up your field as Hotspot with this statement

  TRY.
      lr_column ?= lr_columns->get_column( 'CARRID' ).
      lr_column->set_cell_type( if_salv_c_cell_type=>hotspot ).
    CATCH cx_salv_not_found.                            "#EC NO_HANDLER
  ENDTRY.

4 - You Must create and instantiate a object of class <b>cl_salv_events_table</b> responsible to get all events. You can do as follow

 
  DATA: lr_events TYPE REF TO cl_salv_events_table.
  lr_events = gr_table->get_event( ).

5 - You MUST active event handler for events that you want to work

  SET HANDLER gr_events->on_link_click FOR lr_events.

<b>You can see it working running the code below. I hope I have helped you with this informations. Good Look !

Ps.: Don't forget to reward points for useful answers and close this thread when your question be answered !.

</b>

REPORT zsalv_event_mar NO STANDARD PAGE HEADING.

*----------------------------------------------------------------------*
*       CLASS lcl_handle_events DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS lcl_handle_events DEFINITION.
  PUBLIC SECTION.
    METHODS:
      on_link_click FOR EVENT link_click OF cl_salv_events_table
        IMPORTING row column.
ENDCLASS.                    "lcl_handle_events DEFINITION

*----------------------------------------------------------------------*
*       CLASS lcl_handle_events IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS lcl_handle_events IMPLEMENTATION.
  METHOD on_link_click.

    DATA: l_row_string TYPE string,
          l_col_string TYPE string,
          l_row        TYPE char128.

    MESSAGE i000(0k) WITH 'You Clicked on Line'
                           row
                           'Of Column'
                           column.

  ENDMETHOD.                    "on_single_click
ENDCLASS.                    "lcl_handle_events IMPLEMENTATION

DATA: gr_events TYPE REF TO lcl_handle_events.

DATA: gt_outtab TYPE STANDARD TABLE OF alv_tab.

DATA: gr_table   TYPE REF TO cl_salv_table.

SELECTION-SCREEN BEGIN OF BLOCK gen WITH FRAME.
PARAMETERS: p_amount TYPE i DEFAULT 30.
SELECTION-SCREEN END OF BLOCK gen.

START-OF-SELECTION.

  PERFORM select_data.

  PERFORM display.

*&---------------------------------------------------------------------*
*&      Form  select_data
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM select_data .

  SELECT *
    FROM alv_tab
    INTO TABLE gt_outtab
        UP TO p_amount ROWS.

ENDFORM.                    " select_data
*&---------------------------------------------------------------------*
*&      Form  display
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM display .

  TRY.
      cl_salv_table=>factory(
        IMPORTING
          r_salv_table = gr_table
        CHANGING
          t_table      = gt_outtab ).
    CATCH cx_salv_msg.                                  "#EC NO_HANDLER
  ENDTRY.

  DATA: lr_functions TYPE REF TO cl_salv_functions_list.

  lr_functions = gr_table->get_functions( ).
  lr_functions->set_default( abap_true ).

*... set the columns technical
  DATA: lr_columns TYPE REF TO cl_salv_columns_table,
        lr_column  TYPE REF TO cl_salv_column_table.

  lr_columns = gr_table->get_columns( ).
  lr_columns->set_optimize( abap_true ).

  TRY.
      lr_column ?= lr_columns->get_column( 'CARRID' ).
      lr_column->set_cell_type( if_salv_c_cell_type=>hotspot ).
    CATCH cx_salv_not_found.                            "#EC NO_HANDLER
  ENDTRY.

  DATA: lr_events TYPE REF TO cl_salv_events_table.
  lr_events = gr_table->get_event( ).

  CREATE OBJECT gr_events.

  SET HANDLER gr_events->on_link_click FOR lr_events.

  gr_table->display( ).

ENDFORM.                    " display

Regards.

Marcelo Ramos

[Former Member]

Thanks, your answers have been very useful.

But my problem was that I didn't use a dynpro so the program can't detect the button (I think )but it can detect a hotspot.

I can't see the difference between use BUTTON and HOTSPOT because if my program can detect the HOTSPOT why don't detect the BUTTON?

OK lr_column ?= lr_columns->get_column( 'CARRID' ).

lr_column->set_cell_type( if_salv_c_cell_type=>hotspot ).

KO lr_column ?= lr_columns->get_column( 'CARRID' ).

lr_column->set_cell_type( if_salv_c_cell_type=>BUTTON ).

[marcelo_ramos1]

Hi,

Maybe this code be useful for you, it uses events <b>on_link_click</b> and <b>on_double_click</b> and display a field as icon that trigger its events.

REPORT zsalv_event_mar NO STANDARD PAGE HEADING.

INCLUDE <icon>.

*----------------------------------------------------------------------*
*       CLASS lcl_alv DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS lcl_alv DEFINITION.
  PUBLIC SECTION.

    METHODS select_alv IMPORTING amount TYPE i.

    METHODS display_alv.

    METHODS on_link_click
                FOR EVENT link_click OF cl_salv_events_table
                IMPORTING row column.

    METHODS on_double_click
               FOR EVENT double_click OF cl_salv_events_table
               IMPORTING row column.

  PROTECTED SECTION.

    DATA: o_table   TYPE REF TO cl_salv_table,
          o_columns TYPE REF TO cl_salv_columns_table,
          o_column  TYPE REF TO cl_salv_column_table,
          o_events  TYPE REF TO cl_salv_events_table.

    DATA: BEGIN OF s_alv2.
    INCLUDE TYPE alv_tab.
    DATA:   button      TYPE icon_d,
          END   OF s_alv2.

    DATA t_alv2 LIKE TABLE OF s_alv2.

ENDCLASS.                    "lcl_alv DEFINITION

*----------------------------------------------------------------------*
*       CLASS lcl_alv IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS lcl_alv IMPLEMENTATION.

  METHOD select_alv.

    SELECT *
      FROM alv_tab
      INTO CORRESPONDING FIELDS OF TABLE t_alv2
          UP TO amount ROWS.

    LOOP AT t_alv2 INTO s_alv2.
      MOVE icon_oo_class_event TO s_alv2-button.
      MODIFY t_alv2 FROM s_alv2 INDEX sy-tabix.
    ENDLOOP.

  ENDMETHOD.                    "SELECT_ALV

  METHOD display_alv.

    TRY.
        cl_salv_table=>factory(
          IMPORTING
            r_salv_table = o_table
          CHANGING
            t_table      = t_alv2 ).
      CATCH cx_salv_msg.
    ENDTRY.

    o_columns = o_table->get_columns( ).
    o_columns->set_optimize( abap_true ).

    TRY.
        o_column ?= o_columns->get_column( 'CARRID' ).
        o_column->set_cell_type( if_salv_c_cell_type=>hotspot ).
      CATCH cx_salv_not_found.
    ENDTRY.

    TRY.
        o_column ?= o_columns->get_column( 'BUTTON' ).
        o_column->set_icon( if_salv_c_bool_sap=>true ).
        o_column->set_cell_type( if_salv_c_cell_type=>hotspot ).
        o_column->set_long_text( 'My Button' ).
      CATCH cx_salv_not_found.
    ENDTRY.

    o_events = o_table->get_event( ).

    SET HANDLER me->on_link_click FOR o_events.

    SET HANDLER me->on_double_click FOR o_events.

    o_table->display( ).

  ENDMETHOD.                    "display_alv

  METHOD on_link_click.

    MESSAGE i000(0k) WITH 'You Clicked on Line'
                           row
                           'Of Column'
                           column.

  ENDMETHOD.                    "on_single_click

  METHOD on_double_click.

    MESSAGE i000(0k) WITH 'You Double Clicked on Line'
                       row
                       'Of Column'
                       column.

  ENDMETHOD.                    "on_double_click

ENDCLASS.                    "lcl_alv IMPLEMENTATION

DATA o_alv TYPE REF TO lcl_alv.

START-OF-SELECTION.

  CREATE OBJECT o_alv.

  o_alv->select_alv( 30 ).
  o_alv->display_alv( ).

Regards.

Marcelo Ramos

[Former Member]

Thanks a lot . I resolved the problem