Editable Alv: ERROR in er_data_changed- display_protocol

I have one fields "Emp_dept" in the record of the ALV Grid which can be edited, but when I edit this field with enter event it will generate a error in display protocal, I want it to save in database , I debuged the program it reflect the in internal table but failed to reflect the in change in data base, as i Just started dveelopment in abap programing i searched the whole web for this problem but couldnot sucessfull please help me in this regarrd
Here is my code:
I am using module pool programing and I am following abap slandered program Bcalv_edit_03.
FUNCTION-POOL Z_EMPLOYEE. "MESSAGE-ID ..
* INCLUDE LZ_EMPLOYEED... " Local class definition
TABLES:ZEMPLOYEE, ZEMP_COMM.
DATA: zemploye TYPE TABLE OF zemployee WITH HEADER LINE,
WA TYPE zemployee .
DATA: ZEMP_COM TYPE TABLE OF ZEMP_COMM WITH HEADER LINE.
DATA : WACOMM TYPE ZEMP_COMM.
DATA: ZEMP_ADR TYPE TABLE OF ZEMP_ADRESS WITH HEADER LINE,
WA_ADR TYPE ZEMP_ADRESS.
DATA: ZEMP_EDU TYPE TABLE OF ZEMP_EDUCATION1 WITH HEADER LINE,
WA_EDU1 TYPE ZEMP_EDUCATION1.
DATA EMPD TYPE ZEMP_ID.
*data empd LIKE zemployee-emp_id.
data: O_DOCKING TYPE REF TO CL_GUI_DOCKING_CONTAINER,
O_GRID TYPE REF TO CL_GUI_ALV_GRID,"Grid
 i_selected_rows TYPE lvc_t_row,"Selected Rows
 w_selected_rows TYPE lvc_s_row,
 WA_LAYOUT TYPE LVC_S_LAYO,
class lcl_event_receiver definition deferred.
data: g_event_receiver type ref to lcl_event_receiver.
types:BEGIN OF i_zemployee ,
 emp_id type zemployee-emp_id,
 emp_name type zemployee-emp_name,
 D_O_BIRTH TYPE ZEMPLOYEE-D_O_BIRTH,
 D_o_jOIN TYPE ZEMPLOYEE-D_o_jOIN,
 EMP_DEPT TYPE ZEMPLOYEE-EMP_DEPT,
 EMP_NO type ZEMP_COMM-EMP_NO,
 eemp_id type zemp_comm-emp_id,
 EMP_ADRESS TYPE ZEMP_ADRESS-EMP_ADRESS,
 EMP_RES_ADDR TYPE ZEMP_ADRESS-EMP_RES_ADDR,
 EMP_EDU1 TYPE ZEMP_EDUCATION1-EMP_EDU1,
END OF i_zemployee.
 Data:
 i_tb type i_zemployee,
 emp_itb like table of i_tb.
 data:t_fcat TYPE lvc_t_fcat,
 wa_fcat TYPE lvc_s_fcat.
DATA:
 screen TYPE n LENGTH 4 VALUE 0100,
 screen1 TYPE n LENGTH 4 VALUE 0110,
 screen2 TYPE n LENGTH 4 VALUE 0120,
 screen3 TYPE n LENGTH 4 VALUE 0130,
 ok_code LIKE sy-ucomm.
 FORM FREE_OBJECTS .
 CALL METHOD O_GRID->FREE
 EXCEPTIONS
 CNTL_ERROR = 1
 CNTL_SYSTEM_ERROR = 2
 OTHERS = 3.
 IF SY-SUBRC <> 0.
 MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
 ENDIF.
 FREE O_GRID.
 CALL METHOD O_DOCKING->FREE
 EXCEPTIONS
 CNTL_ERROR = 1
 CNTL_SYSTEM_ERROR = 2
 OTHERS = 3.
 IF SY-SUBRC <> 0.
 MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
 ENDIF.
FREE O_DOCKING.
ENDFORM.
form sol using emp_idd .
 data l_num(5) type n.
 l_num = emp_idd.
* CALL FUNCTION 'NUMBER_GET_NEXT'
* EXPORTING
* nr_range_nr = '01'
* object = 'ZEMP_AUTO'
* IMPORTING
* number = l_num
* EXCEPTIONS
* interval_not_found = 1
* number_range_not_intern = 2
* object_not_found = 3
* quantity_is_0 = 4
* quantity_is_not_1 = 5
* interval_overflow = 6
* buffer_overflow = 7
* OTHERS = 8.
 l_num = l_num + 1.
EMP_IDD = L_NUM.
endform.
class lcl_event_receiver definition.
public section.
 methods:
 handle_data_changed
 for event data_changed of cl_gui_alv_grid
 importing er_data_changed.
private section.
* This flag is set if any error occured in one of the
* following methods:
 data: error_in_data type c.
* Methods to modularize event handler method HANDLE_DATA_CHANGED:
 methods: check_planetype
 importing
 ps_good_planetype type lvc_s_modi
 pr_data_changed type ref to cl_alv_changed_data_protocol.
* methods: ch_new_plane_v_new_seatsocc
* importing
* psg_plane type lvc_s_modi
* psg_socc type lvc_s_modi
* ps_saplane type saplane
* pr_data_changed type ref to cl_alv_changed_data_protocol.
* methods: ch_new_plane_v_old_seatsocc
* importing
* psg_plane type lvc_s_modi
* ps_saplane type saplane
* pr_data_changed type ref to cl_alv_changed_data_protocol.
* methods: check_seatsocc
* importing
* ps_good type lvc_s_modi
* pr_data_changed type ref to cl_alv_changed_data_protocol.
* This is a suggestion how you could comment your checks in each method:
* CHECK: fieldname(old/new value) !<comp> fieldname(old/new value)
* IF NOT: (What to tell the user is wrong about the input)
* Remarks:
* fieldname: fieldname of table for the corresponding column
* (old/new value): ckeck with value of GT_OUTTAB or MT_GOOD_CELLS.
* !<comp> : the value is valid if the condition <comp> holds.
* Example:
* CHECK seatsocc(new) !>= seatsmax(old)
* IF NOT: There are not enough number of seats according to this
* planetype.
endclass.
class lcl_event_receiver implementation.
 method handle_data_changed.
 data: ls_good type lvc_s_modi.
 error_in_data = space.
 loop at er_data_changed->mt_good_cells into ls_good.
 case ls_good-fieldname.
* check if column PLANETYPE of this row was changed
 when 'EMP_DEPT'.
 call method check_planetype
 exporting
 ps_good_planetype = ls_good
 pr_data_changed = er_data_changed.
 endcase.
 endloop.
*§7.Display application log if an error has occured.
 if error_in_data eq 'X'.
 call method er_data_changed->display_protocol. ( Error line) <-------------------------------
 endif.
 endmethod.
 method check_planetype.
 data: l_planetype type zemp_dept,
 ls_saplane type zemployee,
 ls_good_seatsocc type lvc_s_modi.
 call method pr_data_changed->get_cell_value
 exporting i_row_id = ps_good_planetype-row_id
 i_fieldname = ps_good_planetype-fieldname
 importing e_value = l_planetype.
MODIFY ZEMPLOYEE FROM TABLE emp_itb.
 select single * from zemployee into ls_saplane where
 emp_dept = l_planetype.
 if sy-subrc ne 0.
 call method pr_data_changed->add_protocol_entry
 exporting
 i_msgid = '0K' i_msgno = '000' i_msgty = 'E'
 i_msgv1 = text-m03 "Flugzeugtyp
 i_msgv2 = l_planetype
 i_msgv3 = text-m05 "exitstiert nicht
 i_fieldname = ps_good_planetype-fieldname
 i_row_id = ps_good_planetype-row_id.
 error_in_data = 'X'.
 exit. "plane does not exit, so we're finished here!
 endif.
endmethod.
endclass.
**********************************************Module output****************
MODULE STATUS_0120 OUTPUT.
SET PF-STATUS 'START'.
SET TITLEBAR 'STARTT'.
IF O_DOCKING IS INITIAL.
* Creating Docking Container
 data: lt_exclude type ui_functions.
 CREATE OBJECT O_DOCKING
 EXPORTING
 RATIO = '95'.
 IF SY-SUBRC EQ 0.
* Creating Grid
 CREATE OBJECT O_GRID
 EXPORTING
 I_PARENT = O_DOCKING.
 ENDIF.
endif.
* Filling the fieldcatalog table
* CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
* EXPORTING
* I_STRUCTURE_NAME = 'i_tb'
* CHANGING
* CT_FIELDCAT = t_fcat
* EXCEPTIONS
* INCONSISTENT_INTERFACE = 1
* PROGRAM_ERROR = 2
* OTHERS = 3.
 WA_LAYOUT-GRID_TITLE = 'EMPLOYEE TABLE DETAILS'.
 WA_LAYOUT-ZEBRA = 'X'.
 WA_LAYOUT-EDIT = 'X'.
IF T_FCAT is initial.
* wa_fcat-fieldname = 'EMP_ID'.
* wa_fcat-ref_table = 'ZEMPLOYEE'.
* wa_fcat-ref_field = 'EMP_ID'.
* wa_fcat-col_pos = 2.
* APPEND wa_fcat TO t_fcat.
* CLEAR wa_fcat.
 wa_fcat-fieldname = 'EMP_NAME'.
 wa_fcat-ref_table = 'ZEMPLOYEE'.
 wa_fcat-ref_field = 'EMP_NAME'.
 wa_fcat-col_pos = 3.
 APPEND wa_fcat TO t_fcat.
 CLEAR wa_fcat.
 wa_fcat-fieldname = 'EMP_DEPT'.
 wa_fcat-ref_table = 'ZEMPLOYEE'.
 wa_fcat-ref_field = 'EMP_DEPT'.
 wa_fcat-col_pos = 4.
 APPEND wa_fcat TO t_fcat.
 CLEAR wa_fcat.
 wa_fcat-fieldname = 'D_O_BIRTH'.
 wa_fcat-ref_table = 'ZEMPLOYEE'.
 wa_fcat-ref_field = 'D_O_BIRTH'.
 wa_fcat-col_pos = 5.
 APPEND wa_fcat TO t_fcat.
 CLEAR wa_fcat.
 wa_fcat-fieldname = 'D_O_JOIN'.
wa_fcat-ref_table = 'ZEMPLOYEE'.
wa_fcat-ref_field = 'D_O_JOIN'.
wa_fcat-col_pos = 6.
 APPEND wa_fcat TO t_fcat.
 CLEAR wa_fcat.
wa_fcat-fieldname = 'EMP_NO'.
wa_fcat-ref_table = 'ZEMP_COMM'.
wa_fcat-ref_field = 'EMP_NO'.
wa_fcat-col_pos = 7.
 APPEND wa_fcat TO t_fcat.
 CLEAR wa_fcat.
 wa_fcat-fieldname = 'EMP_ADRESS'.
 wa_fcat-ref_table = 'ZEMP_ADRESS'.
 wa_fcat-ref_field = 'EMP_ADRESS'.
 wa_fcat-col_pos = 7.
 APPEND wa_fcat TO t_fcat.
 CLEAR wa_fcat.
 wa_fcat-fieldname = 'EMP_RES_ADDR'.
 wa_fcat-ref_table = 'ZEMP_ADRESS'.
 wa_fcat-ref_field = 'EMP_RES_ADDR'.
 wa_fcat-col_pos = 8.
 APPEND wa_fcat TO t_fcat.
 CLEAR wa_fcat.
 wa_fcat-fieldname = 'EMP_EDU1'.
 wa_fcat-ref_table = 'ZEMP_EDUCATION1'.
 wa_fcat-ref_field = 'EMP_EDU1'.
 wa_fcat-col_pos = 9.
 APPEND wa_fcat TO t_fcat.
 CLEAR wa_fcat.
ENDIF.
* CALL METHOD o_grid->register_edit_event
* EXPORTING i_event_id = cl_gui_alv_grid=>mc_evt_modified.
* W_VARIANT-REPORT = SY-REPID.
* Displaying the output
 CALL METHOD O_GRID->SET_TABLE_FOR_FIRST_DISPLAY
 EXPORTING
* IS_VARIANT = VARIANT
 I_SAVE = 'A'
 I_STRUCTURE_NAME = 'i_tb'
 IS_LAYOUT = WA_LAYOUT
 it_toolbar_excluding = lt_exclude
 CHANGING
 IT_OUTTAB = emp_itb
 IT_FIELDCATALOG = t_fcat
 EXCEPTIONS
 INVALID_PARAMETER_COMBINATION = 1
 PROGRAM_ERROR = 2
 TOO_MANY_LINES = 3
 OTHERS = 4.
 IF SY-SUBRC <> 0.
 MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
 ENDIF.
*call method cl_gui_control=>set_focus exporting control = O_GRID.
* call method cl_gui_cfw=>flush.
 CALL METHOD o_grid->set_ready_for_input
 EXPORTING
 I_READY_FOR_INPUT = 1.
CALL METHOD O_GRID->REGISTER_EDIT_EVENT
 EXPORTING
 I_EVENT_ID = CL_GUI_ALV_GRID=>mc_evt_enter.
* EXCEPTIONS
* ERROR = 1
* OTHERS = 2.
**** UPDATE zemployee FROM TABLE emp_itb.
create object g_event_receiver.
 set handler g_event_receiver->handle_data_changed for o_grid.
* IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
* ENDIF.
ENDMODULE. " STATUS_0120 OUTPUT
*& Module USER_COMMAND_0120 INPUT
* text
MODULE USER_COMMAND_0120 INPUT.
DATA LV_UCOMM TYPE SY-UCOMM.
* data: ok_code like sy-ucomm .
LV_UCOMM = SY-UCOMM.
 CASE LV_UCOMM.
WHEN 'CANCEL' OR 'EXIT'.
 PERFORM FREE_OBJECTS.
 LEAVE PROGRAM.
 WHEN 'BACK'.
 CALL METHOD o_grid->set_frontend_fieldcatalog
 EXPORTING
 it_fieldcatalog = t_fcat[].
 if o_grid is not initial.
 CALL METHOD o_grid->refresh_table_display
 EXCEPTIONS
 finished = 1
 OTHERS = 2.
endif.
 PERFORM FREE_OBJECTS.
 CALL SCREEN 110.
* SET SCREEN '0'.
* LEAVE SCREEN.
 ENDCASE.
ENDMODULE.
Please help me to solve this porblem..

Hi suhas,
my issue is not the lack of data .....
my issue is about the error handling in data_changed event in alv oops application....am able to display the error log using display_protocol method..,.. but after displaying the error log am still able to save the changes which should not happen....the thing is we should not be able to save the changes...... am having the same issue as the following thread
Re: CL_ALV_CHANGED_DATA_PROTOCOL - Protocol Popup is not modal
if u still require any clarifications...pls let me know ur mail-id ill post my code to u ..
thanks
suresh

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Message was edited by:
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Error message when running editable alv

Hi all,
I hava a problem with an editable ALV. I created it with the following method wddoinit:
METHOD wddoinit .
initialize ALV Component
DATA: l_ref_cmp_usage TYPE REF TO if_wd_component_usage.
l_ref_cmp_usage = wd_this->wd_cpuse_alv( ).
IF l_ref_cmp_usage->has_active_component( ) IS INITIAL.
    l_ref_cmp_usage->create_component( ).
ENDIF.
Get model data
DATA: l_ref_interfacecontroller TYPE REF TO iwci_salv_wd_table .
l_ref_interfacecontroller = wd_this->wd_cpifc_alv( ).
DATA:
l_value TYPE REF TO cl_salv_wd_config_table.
l_value = l_ref_interfacecontroller->get_model( ).
set read only mode to false (and display edit toolbar)
DATA: lr_table_settings TYPE REF TO
if_salv_wd_table_settings.
lr_table_settings ?= l_value.
lr_table_settings->set_read_only( abap_false ).
set cell editor for input fields (~make colum editable)
DATA: lr_column TYPE REF TO cl_salv_wd_column.
DATA: lr_column_settings TYPE REF TO if_salv_wd_column_settings,
lr_input_field TYPE REF TO cl_salv_wd_uie_input_field.
lr_column_settings ?= l_value.
lr_column = lr_column_settings->get_column( 'SAMPLE' ).
CREATE OBJECT lr_input_field
    EXPORTING
      value_fieldname = 'SAMPLE'.
lr_column->set_cell_editor( lr_input_field ).
ENDMETHOD.
But when I run the Web Dynpro Application I get an error message with the note:
"Access over "Null" Object Reference not possible" ( I translated it from german to english )
The error occures in the line:
lr_column->set_cell_editor( lr_input_field ).
But what is wrong?
Thanks for your help!!
Regards
Ingmar

Sorry. I'm stupid. I didn't the "Sample" for column and field!!!
But:
How can I reach that not only one cell is editable, but the whole table? And how can I save the data that I put in, when I add a new line?
Thanks!!

Skipping domain errors in editable ALV

Hi Gurus,
Have a concern wrt an editable ALV.
I have an editable ALV in which a field's(Chain ID is the name of the field) domain has
fixed intervals. The fixed interval is defined as:
T000000000 TZZZZZZZZZ
S000000000 SZZZZZZZZZ
Which means that the values for this field can start only with T or S. In the ALV, for this
field I may have blank values getting displayed. If I enter a valid value in the ALV then
its ok but when I delete the same value the ALV protocol shows an error 'Enter a valid
value'. The system is interpreting the value to be 'entered' in the ALV as 'space' as its
not valid as per the fixed intervals. BUt this actually should not happen because I am just
undoing my change. Can anyone suggest a way so that this validation is skipped and the ALV thus can accept initial value?
Thanks and Regards,
Sravan.
Edited by: sravan sriram on May 19, 2010 6:54 AM

Skipping processing of the chain block will not stop the message from coming as the message is raised from the domain level. If you mean that among other things I need to delete that message from the protocol then in that case the changed value strangely does not get deleted. It comes back to the value which has been put before deleting it...

Supress error log display in editable ALV

Hi,
I am using an editable ALV to get input. Some of the fields in the grid are assigned a check table. So when a entry which does not exist in the check table is made for these fields ALV by default displays a error log.
Is there any way to supress the display of this error log and collect the errors in this log to some internal table? I want to do this because apart from the standard validations done by the ALV i am performing some validations in the program and displaying a log. So i want to capture the error log of the ALV and display them in my log so that 2 error logs wont be displayed.
Thanks in advance,
Tongston Immanuel.

I'm building a kind of feature, where you can go different ways in a tree, based on a condition. The values for this condition are entered in an ALV-grid, which is a table with fields of type C(30). However to have a F4 help, I fill in ref_field and ref_table in the fieldcatalog. Most of the time, this works fine, but for fields of type NUMC, even if no F4 help is available, this doesn't work since internally it wants to convert this NUMC field to my CHAR field and it fails.
I refreshed my log table in the DATA_CHANGED event. Thanks for your suggestion!

Validation of data in editable ALV report output for particular field

Hi Experts,
I have one input enabled field in ALV output. How to validate the data once user enters in that field and press enter? Is it possible to capture the value, hit the enter after user enters the data?
Thanks,
Surya Prakash

Halo Prakash,
1 First you should registeer the ENTER Event.
call method g_grid->register_edit_event
               exporting
                  i_event_id = cl_gui_alv_grid=>mc_evt_enter.
2 Declare event handler method for Event data_changed of cl_gui_alv_grid.
handle_data_changed
         for event data_changed of cl_gui_alv_grid
             importing er_data_changed.
3 Inside the Event handler method , you get the event parameter er_data_changed type ref to CL_ALV_CHANGED_DATA_PROTOCOL.
loop at er_data_changed->mt_good_cells into ls_good.
      case ls_good-fieldname.
        when 'FIELD1'.
          call method check_FIELD1.
        when 'FIELD2 '.
          call method check_FIELD2
      endcase.
    endloop.
4 Inside the Method check_FIELD1 and check_FIELD2 you can do the validation check .
call method er_data_changed->get_cell_value( Passing the row no and field name).
if the check fails you can use add_protocol_entry to write the error.
5 Finally call
er_data_changed->display_protocol.
Regards
Arshad

Editable ALV, how to capture changed data

Hi All,
I have created an editable ALV. User can make some changes in the displayed record and press "Submit" button (custom button on application toolbar), the program should validate the data and write the file on application server if validations are successful otherwise controls stay on the same screen.
I am handling this validation and writing file part in PAI of the screen.
Problem: The program is capturing the data when user changes it for the first, but program is failing to capture the subsequent changes (user makes after the validation fails). Program processes always the first time changed data only. Please help me in getting this problem resolved.
Step1 : Program shows output.
Step2: User changes Company Code.
Step3: User clicks on Submit Button.
Step3.1: Program reads the new data and performs validation.
Step3.2: New Company code is not valid, error displayed.
Step4: User changes the company code again, presses submit button.
Goto step 3.1 -> Here program does not read the new data, rather first time changes company code is again read and validated, and program shows the same error again, which is not a desired result

Hi Ashish,
you need a method HANDLE_DATA_CHANGED as handler for grid event DATA_CHANGED.
Use
LOOP AT er_data_changed->mt_mod_cells ASSIGNING <mod>.
to check all changed data. In this event, add the error messages to ER_DATA_CHANGED object.
set all required handlers, i.e.
SET HANDLER:
 handle_data_changed FOR ro_grid,
 handle_data_changed_finished FOR ro_grid,
 handle_toolbar_set FOR ro_grid,
 handle_user_command FOR ro_grid,
 handle_hotspot_click FOR ro_grid,
 handle_f4 FOR ro_grid,
 handle_f1 FOR ro_grid.
 ro_grid->set_toolbar_interactive( ).
Register ENTER and MODIFIED events.
 ro_grid->register_edit_event( cl_gui_alv_grid=>mc_evt_enter ).
 ro_grid->register_edit_event( cl_gui_alv_grid=>mc_evt_modified ).
Regards,
Clemens

Row id in editable ALV while using MP_MOD_ROWS

Hi Experts
I have an editable alv with 13 fields editable in it. Inside the DATA_CHANGED event i am making use of the attribute MP_MOD_ROWS for doing some specific validations. But I am not able to pass the row_id to the the mehod add_protocal_entry while multiple rows are in MP_MOD_ROWS ,since its not available MP_MOD_ROWS .
Can anyone tell me how i can get the row_id for each row in MP_MOD_ROWS.
Since I need the full row for validations , i cant use MT_MOD_CELLS.
Regards,
Suniljith.SS

Hi,
this is an excerpt of what we dir:
METHOD handle_data_changed.
FIELD-SYMBOLS:
 <dat> TYPE ANY,
 <mod> TYPE LINE OF lvc_t_modi,
LOOP AT er_data_changed->mt_mod_cells ASSIGNING <mod>.
* error case, sy-subrc <> 0 returned by MESSAGE ... RAISING
 symsg2alv_changed_data_prot( ir_cl_alv_changed_data_prot = er_data_changed
 is_modi = <mod> ).
 DELETE er_data_changed->mt_mod_cells.
using the method
METHOD symsg2alv_changed_data_prot.
MESSAGE
 ID sy-msgid
 TYPE sy-msgty
 NUMBER sy-msgno
 WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4
 INTO mv_msg. "for debug transparancy
ir_cl_alv_changed_data_prot->add_protocol_entry(
 i_msgid = sy-msgid
 i_msgty = sy-msgty
 i_msgno = sy-msgno
 i_msgv1 = sy-msgv1
 i_msgv2 = sy-msgv2
 i_msgv3 = sy-msgv3
 i_msgv4 = sy-msgv4
 i_fieldname = is_modi-fieldname
 i_row_id = is_modi-row_id
* i_tabix = i_tabix
ENDMETHOD.
I do not understand your question about row_id as this is a component lvc_t_modi table. I don't know MP_MOD_ROWS as there is only attribute MT_MOD_ROWS of parameter ER_DATA_CHANGED of event DATA_CHANGED of CL_GUI_ALV_GRID.
Regards,
Clemens

Check_changed_data method on editable ALV Grid ( class cl_gui_alv_grid)

Hi guys,
I use the following method (register_edit_event) in the PBO soon after first display of an editable ALV grid to register enter as an event to do validations on fields like qty. If user enters some character like 'abc' for qty and hits enter on keyboard, ALV grid pop's up a standard message ( I haven't coded for this.Since I use DDIC structure in field catalog, the Std. ALV program takes care of it. ). THis takes care of the validation before I click on save.
call method alv_grid->register_edit_event
                        exporting
                           i_event_id = cl_gui_alv_grid=>mc_evt_enter.
This works fine. But I want this validation to run when I also click the SAVE button of the screen. Is it possible to run this standard validation in my PAI event eg. SAVE ? I thought I will be, by calling the method check_changed_data in my PAI event. But this is doing nothing. Does this method conflict with register_edit_event or something ? So , basically what I am looking for is to trigger the event or call the method which does the same work as the "check" button on ALV grid.
Any advice or tips or sample code is greatly appreciated.
Thanks,
Shareen

Hi Shareen,
Handle the data_changed event in the grid.
Whenever you make changes in the data in ALV Grid this event would be triggered. Here you can perform additional validations that you may need to perform.
    METHODS handle_data_changed
      FOR EVENT data_changed OF cl_gui_alv_grid
      IMPORTING er_data_changed.
Implementation:
METHOD handle_data_changed.
    PERFORM validations USING er_data_changed.
ENDMETHOD.
FORM validations USING er_data_changed TYPE REF TO cl_alv_changed_data_protocol.
DATA: ls_good TYPE lvc_s_modi.
DATA wa LIKE LINE OF lt_good_cells.
CALL METHOD g_grid->register_edit_event
    EXPORTING
      i_event_id = cl_gui_alv_grid=>mc_evt_modified.
LOOP AT er_data_changed->mt_good_cells INTO ls_good.
    CASE ls_good-fieldname.
    WHEN 'FIELDNAME'. "Your fieldname
        CALL METHOD er_data_changed->get_cell_value "Get the changed value
          EXPORTING
            i_row_id    = ls_good-row_id
            i_fieldname = ls_good-fieldname
          IMPORTING
            e_value     = temp. "Your temp variable
        "Make your validations here.
    ENDCASE.
Ps: Reward points if helpful.
Regards,
Wenceslaus.

Editable Alv: ERROR in er_data_changed- display_protocol

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