alv grid / method cl_alv_changed_data_protocol-add_protocol_entry

[Former Member]

I used the demo program BCALV_GRID_EDIT to implement my editable grid and now I got stuck in the

method data_changed, where I do that loop:

LOOP AT rr_data_changed->mt_good_cells INTO ls_mod_cells.

where I check, get the values and modify the cells.

If something is wrong, I call the alv error protocol like this:

CALL METHOD rr_data_changed->add_protocol_entry

EXPORTING

i_msgid = '0K'

i_msgno = '000'

i_msgty = 'E'

i_msgv1 = text-004 "Buchungskreis

i_msgv2 = l_rbukrs

i_msgv3 = text-006 "exisitiert nicht

i_fieldname = ls_mod_cells-fieldname

i_row_id = ls_mod_cells-row_id.

The right wrong value is highlighted in red, the message is displayed, everything works fine until I change the value back to normal.

Then I get a run time error TSV_TNEW_PAGE_ALLOC_FAILED because MT_GOOD_CELLS couldn't be expanded.

It happened in class CL_ALV_CHANGED_DATA_PROTOCOL, in method MODIFY_STYLE in line 41.

append ls_modi to mt_good_cells.

I already tried to debug that method, to see what went wrong, but the debugger doesn't work any more at this point.

I guess I use the method wrong.

Does it has got something to do with

cl_gui_control=>www_active which is not active in my test? (p_loce in BCALV_GRID_EDIT)

I tried already many things with refresh_protocol and protocol_is_visible but the problem does not change.

Any suggestions? Should I simply choose to a message_list class and do the highlighting manually?

[Former Member]

My problem is solved, because the method modify_style was the reason for the run time error.

I called for one special field in the loop at mt_good_cells the method modify style

which tried to append a line to it.

append ls_modi to mt_good_cells.

in a loop to change the internal table the loop is based on isn't a good idea.

So the memory ran out and the system hang up when the memory size for the table was overrun.

Thanks for listening, the problem is solved.