Error with Loop....endloop.

Question

Hello all i have an internal table. If i am not looping it it is doign everything fine. However if i am looping it i dont see any results.
I guess it a small error but unable to figure it.
here is the code without loop.
    data : i_output_details like ZSD_INQUIRY_OUTPUT_DETAILS occurs 0
with header line.
    data : i_errors like ZSD_INQUIRY_ERRORS occurs 0 with header line.
*Output Results
    i_output_details-CHARGE_TYPE = ' '.
    i_errors-ERROR_MESSAGE = 'ERROR'.
      if i_output_details-CHARGE_TYPE = ' '.
        CALL FUNCTION 'POPUP_TO_INFORM'
             EXPORTING
                TITEL   = i_errors-ERROR_MESSAGE
                TXT1    = 'error'
                TXT2    = 'error'
        TXT3    = ' '
        TXT4    = ' '
      else.
      write :/ 'hello'.
      endif.
HERE IS THE CODE WITH PROBLEM AFTER I HAVE LOOP.... ENDLOOP.
    data : i_output_details like ZSD_INQUIRY_OUTPUT_DETAILS occurs 0
with header line.
    data : i_errors like ZSD_INQUIRY_ERRORS occurs 0 with header line.
*Output Results
    i_output_details-CHARGE_TYPE = ' '.
    i_errors-ERROR_MESSAGE = 'ERROR'.
    Loop at i_output_details.
      if i_output_details-CHARGE_TYPE = ' '.
        CALL FUNCTION 'POPUP_TO_INFORM'
             EXPORTING
                TITEL   = i_errors-ERROR_MESSAGE
                TXT1    = 'error'
                TXT2    = 'error'
        TXT3    = ' '
        TXT4    = ' '
      else.
      write :/ 'hello'.
      endif.
    endloop.
Thanks ,
Shejal.

Answer 1

You internal table contains no data,  only the header line of the itab contains data.  You must APPEND to your itab before LOOPing at it.
i_output_details-CHARGE_TYPE = ' '.
append i_output_details.
Regards,
Rich Heilman