Sy-index / sy-tabix wrong within loop

Question

Hi friends,
i do a loop over a a table and am writing out the field contents like this:
LOOP AT <dyn_table> INTO <dyn_wa>.
        do.
      assign component sy-index
         of structure <dyn_wa> to <dyn_field>.
        if sy-subrc <> 0.
         EXIT.
        else.
* Here it gets the name of the field based on the sy-index of the component
        READ TABLE l_tab_fields INTO w_tab_fields INDEX sy-index.
      endif.
  ENDLOOP.
What now doesnt work is, that whenever i have the read statement uncommented the loop doesnt increment so i only get the first row but that n-times.
any idea where the error is  ?
thank you! i am awarding points generously

Answer 1

LOOP AT <dyn_table> INTO <dyn_wa>.
        do.
      assign component sy-index
         of structure <dyn_wa> to <dyn_field>.
        if sy-subrc <> 0.
         EXIT.
        else.
Here it gets the name of the field based on the sy-index of the component
        READ TABLE l_tab_fields INTO w_tab_fields INDEX sy-index.
      endif.
  ENDLOOP.
If i gt you rite..i would suggest this
Data: l_tabix type sy-tabix.
LOOP AT <dyn_table> INTO <dyn_wa>.
  l_tabix - sy-tabix.
      assign component l_tabix
         of structure <dyn_wa> to <dyn_field>.
        if sy-subrc <> 0.
         EXIT.
        else.
Here it gets the name of the field based on the sy-index of the component
        READ TABLE l_tab_fields INTO w_tab_fields INDEX l_tabix.
      endif.
  ENDLOOP.
santhosh