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

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Hope this helps resolve your problem.
Regards,
Uday

Editable ALV, how to capture changed data

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