topic Re: check_changed_data in Application Development and Automation Discussions

check_changed_data

Former Member — Mon, 06 Aug 2012 13:13:45 GMT

save_ok = ok_code.

CLEAR ok_code.

CASE save_ok.

WHEN 'EXIT' OR 'BACK'.

PERFORM exit_program.

WHEN '&DATA_SAVE'.

CALL METHOD grid1->check_changed_data

IMPORTING

e_valid = l_valid.

IF l_valid = 'X'.

PERFORM call_transaction.

ENDIF.

WHEN OTHERS.

* do nothing

ENDCASE.

here check_changed_data is returning always X to l_valid. 😞 how do i manipulate the code such that l_valid is blank initially and gets changed to X only if i change the value of an eidtable field in alv display???

Re: check_changed_data

Former Member — Mon, 06 Aug 2012 13:58:28 GMT

Need more explanations

Re: check_changed_data

Former Member — Mon, 06 Aug 2012 17:23:50 GMT

initially the value of l_valid will be initial , later after executing the check_changed_data, the value is changing to X even though no change has been made to ALV display. why is it changing to X ??

Re: check_changed_data

Former Member — Mon, 06 Aug 2012 17:48:25 GMT

The method check_changed_data returns X if no error occur, this method triggers the event DATA_CHANGED where all controls should be done.

In this event if an error occurs the error message can be triggered by the parameters ER_DATA_CHANGED, in this case the method check_changed_data will return the SPACE for I_VALID.

So if you don't use the event ER_DATA_CHANGED, I_VALID will always be equal to X: you don't have to use this method to check if a modification has been done, but just only to trigger the event for the control.

Max

Re: check_changed_data

Clemenss — Mon, 06 Aug 2012 21:14:59 GMT

... if you create your own handler you can check

if er_data_changed->mt_mod_cells is initial, that means no data have been changed.

Regards,

Clemens

Re: check_changed_data

phillip_manning2 — Mon, 06 Aug 2012 23:26:24 GMT

CHECK_CHANGED_DATA, although it has the word CHECK in it, is not a boolean method but a functional method.

You call this to ensure all the changes waiting on the SAPGUI are flushed through to the SAP Backend. I.e. if a user has typed in a cell, but not hit enter yet, CHECK_CHANGED_DATA will bring the change through.

In my programs for editable ALVs, I always keep an original copy of the data (for undo functionality).

So, after you call this method, just compare the origirinal ITAB with the current ITAB and you will know if a change has occurred.

Cheers,

Phil

Re: check_changed_data

Former Member — Tue, 07 Aug 2012 05:48:01 GMT

Hi Karthik,

Please check whether your system field SY-DATAR is getting populted, If yes

manipulate your code according to that.

SY-DATAR returns whether the user enters something on the screen.

Regards,

Arun