Column selection in ALV not working

[TMNielsen]

Hi

I have a strange problem with an OO alv.

When I select one or more columns and press one of the standard alv functions like sort or summarize, the selected columns are not recognized as selected, and a popup says "Select at least one column".

The column is clearly selected as you can see:

What is wrong with my coding:

    ls_layout-cwidth_opt = 'X'.

    ls_layout-sel_mode   = 'A'.

    ls_layout-zebra      = 'X'.

    ls_layout-stylefname = 'CELLTAB'.

    ls_layout-no_rowmark = 'X' .

    CALL METHOD cr_alv_grid->set_table_for_first_display

      EXPORTING

        is_layout       = ls_layout

        is_variant      = ls_variant

        i_save          = 'A'

      CHANGING

        it_outtab       = ct_output[]

        it_fieldcatalog = ct_fcat.

Best regards

[TMNielsen]

Hmm

I narrowed the problem down to this code called in an event handler for event data_changed_finished

gs_stbl-row = 'X'.

gs_stbl-col = 'X'.

CALL METHOD gr_main_alv_grid->refresh_table_display

   EXPORTING

     is_stable = gs_stbl.

The purpose of this code was to refresh totals and sub totals of an input column after change of one of the input values.

This works, but at the same time it seems to de-select the columns before the standard functions are called.

[Former Member]

Will a DELTA_REFRESH Or SOFT_REFRESH_TABLE_DISPLAY or a combination do the trick?

I believe the  SOFT_REFRESH_TABLE_DISPLAY is meant to preserve the front-end settings

[TMNielsen]

No a soft_refresh did not fix the problem.

[Former Member]

A workaround would be to get the selected colums using GET_SELECTED_COLUMNS and after the refresh table SET_SELECTED_COLUMNS

[TMNielsen]

Found a solution.

For some reason event data_changed_finished is raised for every action even when no data is changed.

So my solution is to use the event data_changed to set a flag that data was changed.

Then in the data_changed_finished, I only call refresh_table_display if data was actually changed.

With this solution it is not possible to change data and use one of the SAP standard ALV functions at the same time, but that is not a major problem in my scenario.

Probably the workaround suggested by Byju is even better, but I'm happy with my own.

[bernat_loscos]

Hi Thomas,

When generating fieldcatalog try to activate the do_sum catalog property, like this:

loop ct_fcat Into wa_fieldcat.

if wa_fieldcat-fieldname = 'your_fieldname'.

     wa_fieldca-do_sum = 'X'.

endif.

endloop.

Regards,

[Former Member]

hi,

If we want to select the multiple columns in the alv by using ooabap

so in the class CL_GUI_ALV_GRID  it is having one method SET_TABLE_FOR_FIRST_DISPLAY

it is having one importing parameter IS_LAYOUT of type lvc_s_layo type

and this structure contains one field SEL_MODE and set that field value as 'A'.

then we can select the multiple rows in alv grid

Regards,

gopi