CL_SALV_TABLE list refresh after change of field visibility (set_technical)

[Former Member]

Dear all,

in a ALV list i hide some collums with method cl_salv_column_table-set_technical. If the user presses a butten, i like to show the hidden columns, but the filelds are still hidden. I called the method cl_salv_table->refresh and i tryed method cl_salv_table->set_data, but no effect. Only if i destroy the ALV Object the hidden fields are shown. How can i show the hidden fields without creating the ALV new?

Here a short code fragment:

  IF r_dock_cont_top IS INITIAL.                      "Reference to Dynprocontainer
    CREATE OBJECT r_dock_cont_top
      EXPORTING
        side      = r_dock_cont_top->dock_at_top
        extension = '250'.

    TRY.
        CALL METHOD cl_salv_table=>factory
          EXPORTING
            r_container  = r_dock_cont_top
          IMPORTING
            r_salv_table = r_salv_top
          CHANGING
            t_table      = <t_alv_top>.
      CATCH cx_salv_msg .
    ENDTRY.
    PERFORM alv_field_visibility.                      "hide collumns SET_TECNICAL = TRUE
    r_salv_top->display( ).

  ELSE.
    PERFORM alv_field_visibility.                       "show hidden collumns SET_TECNICAL = FALSE
    CALL METHOD r_salv_top->set_data         " no effect
      CHANGING
        t_table = <t_alv_top>.
*    r_salv_top->refresh( refresh_mode = if_salv_c_refresh=>full ). " no effect
  ENDIF.

Thanks for Answer!

Wolfgang

Edited by: Wolfgang Boehm on Jan 5, 2012 11:36 AM

[Harsh_Bansal]

Hi,

you used set_technical = true to hide the columns.

Did you try set_technical = false to make them visible??

Apart from this, there is another method available in same class -

Set_visible

Try using this.

Regards,

Harsh Bansal

[Former Member]

Hello Harsh,

thank you, you are right, i did it like you said .But your solution does'nt work:

FORM alv_field_visibility_set
  USING ib_list_status TYPE boolean
        ir_colt        TYPE REF TO cl_salv_columns_table
        iv_col_name    TYPE fieldname.

  DATA:
    lr_col  TYPE REF TO cl_salv_column_table.

  TRY.
      lr_col ?= ir_colt->get_column( iv_col_name ).
    CATCH cx_salv_not_found.
  ENDTRY.

  IF ib_list_status = false.
    TRY.
        CALL METHOD lr_col->set_technical( true ).
      CATCH cx_salv_data_error.
    ENDTRY.

  ELSE.
    TRY.
      CALL METHOD lr_col->set_visible( true ).
        catch cx_salv_data_error.
    ENDTRY.
  ENDIF.
ENDFORM.                    " ALV_OO_VISIBILITY_SET

Edited by: Wolfgang Boehm on Jan 5, 2012 12:09 PM

Edited by: Wolfgang Boehm on Jan 5, 2012 12:11 PM

[SuhaSaha]

Hello,

Instead of

TRY.
    CALL METHOD lr_col->set_visible( true ).
  CATCH cx_salv_data_error.
ENDTRY.

Try,

TRY.
    CALL METHOD lr_col->set_technical( if_salv_c_bool_sap=>false ).
  CATCH cx_salv_data_error.
ENDTRY.

I feel that although you're setting the visibility attribute as true, but technical attribute is still true & hence you do not see the column.

BR,

Suhas

[Former Member]

Hello Suhas,

thanks a lot, this is the solution! But it seems not ligical to me, to hide one statement, to unhide two statments. Neverless, it runs!

    IF ib_list_status = false.
    TRY.
        CALL METHOD lr_col->set_technical( true ).
      CATCH cx_salv_data_error.
    ENDTRY.

  ELSE.
    TRY.
        CALL METHOD lr_col->set_technical( false ).
      CATCH cx_salv_data_error.
    ENDTRY.
    TRY.
        CALL METHOD lr_col->set_visible( true ).
      CATCH cx_salv_data_error.
    ENDTRY.
  ENDIF. 

Regards,

Wolfgang

[Former Member]

Hello Suhas,

i liked to close this thread to click on solved to your post, but i clicked on the wrong butten and i can't undo it. Please replay to this message so i will give you 10 points.

Regards,

Wolfgang

[ThomasZloch]

Done.

Thomas