topic Re: alv grid (automatic) message error in Application Development and Automation Discussions

alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 11:37:53 GMT

I've written a table maintenance program with an editable alv grid as per SAP example (BCALV_EDIT_04).

It works like a charm except for the NON desired message error log on a specific field/column (<b>PROD_NUM</b>) for appended rows. That is, when I click 'ENTER' (or 'check entries' button) a message error log is raised somehow, which I didn't cater for!

I am calling my grid as follows:


*...initialize alv grid
    CALL METHOD g_grid->set_table_for_first_display
      EXPORTING
        is_layout            = ps_layout
        it_toolbar_excluding = lt_exclude
      CHANGING
        it_fieldcatalog      = pt_fieldcat
        it_outtab            = pt_outtab[].

I also cater for changed data event as follows:


SET HANDLER g_event_receiver->handle_data_changed FOR g_grid.
*---register ENTER to raise event DATA_CHANGED.
    CALL METHOD g_grid->register_edit_event
      EXPORTING
        i_event_id = cl_gui_alv_grid=>mc_evt_enter.

As said before, I don't handle any checks for data (or existance) integrity or anything of the sort in my handle_data_changed method. This error seems to be raised almost automatically.

My field catalog is derived from the structure. In the structure, PROD_NUM is defined as Built-in type CHAR 02.

Is there a way to deactivate this error checking?

Nhlanhla Ndlovu

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 11:47:25 GMT

Hi,

what is the error you are getting. is it related to PROD_NUM. can you specify what is that error.

Regards

vijay

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 11:50:35 GMT

hi,

use following sy-subrc check after you call the display method.

IF SY-SUBRC <> 0.

MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

Hope this helps..

Regards,

Shashank

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 12:12:30 GMT

The message says:

'Enter a valid value'.

See, I do want it to accept initial values as well for field PROD_NUM but it flags these as erroneous input on the alv message log.

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 12:15:09 GMT

I do not understand, Shashank. Please re-iterate.

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 12:20:35 GMT

Hi,

Try following code..

*...initialize alv grid

CALL METHOD g_grid->set_table_for_first_display

EXPORTING

is_layout = ps_layout

it_toolbar_excluding = lt_exclude

CHANGING

it_fieldcatalog = pt_fieldcat

it_outtab = pt_outtab[].

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 HANDLER g_event_receiver->handle_data_changed FOR g_grid.

*---register ENTER to raise event DATA_CHANGED.

CALL METHOD g_grid->register_edit_event

EXPORTING

i_event_id = cl_gui_alv_grid=>mc_evt_enter.

IF SY-SUBRC <> 0.

MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

Regards,

Shashank

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 12:29:21 GMT

can you show the data declaration of internal table and fieldcatalog.

Regards

vijay

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 12:38:52 GMT

Hi Shashank,

I've tried this, Sir. Nothing happens, i.e. when I run the program, change edit values on the grid and click the 'check entries' button or 'ENTER' it just displays the alv grid message 'error log' with 'Enter a valid value' (this is for column PROD_NUM'.

sy-subrc is 0 in all cases.

Regards,

Nhlanhla Ndlovu

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 12:51:04 GMT

Can you show the declaration part of PROD_NUM .

if you enter invalid obviously you get error from alv.

that is the reason i was asking you to show the declaration ,you need to change the data type then only it will stop throwing the error.

Regards

vijay

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 13:27:36 GMT

The field catalog declaration:


 CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'  
   EXPORTING                             
     i_structure_name = 'ZST_ZMODEL_PARM'
   CHANGING                              
     ct_fieldcat      = pt_fieldcat.

PROD_NUM in structure 'ZST_MODEL_PARM':


PROD_NUM	ZLAUNCH_MTH_START	NUMC	2	0	Month of Launch Start

Vijay, I think I've played around with this data type to realize that this is probably not where the problem is. Could it be something else?

Re: alv grid (automatic) message error

Former Member — Mon, 06 Mar 2006 13:36:56 GMT

what are you entering.

(when you got the message what value you entered).

Regards

vijay