Loop problem

[Former Member]

I am doing table control but I have error. Here are my codes:

report ZHERA_TABLE_CONTROL.

CONTROLS flights TYPE TABLEVIEW USING SCREEN 3000.

DATA: ok_code TYPE sy-ucomm,

save_ok TYPE sy-ucomm.

DATA: itab TYPE TABLE OF ZHERA,

fill TYPE i.

TABLES demo_conn.

DATA: lines TYPE i,

limit TYPE i.

SELECT * FROM ZHERA INTO CORRESPONDING FIELDS OF TABLE itab.

DATA wa_hera like line of itab.

CALL SCREEN 3000.

MODULE status_3000 OUTPUT.

SET PF-STATUS 'SCREEN_3000'.

DESCRIBE TABLE itab LINES fill.

flights-lines = fill.

ENDMODULE.

MODULE fill_table_control OUTPUT.

READ TABLE itab INTO demo_conn INDEX flights-current_line.

ENDMODULE.

MODULE cancel INPUT.

LEAVE PROGRAM.

ENDMODULE.

MODULE read_table_control INPUT.

lines = sy-loopc.

MODIFY itab FROM demo_conn INDEX flights-current_line.

ENDMODULE.

MODULE user_command_3000 INPUT.

save_ok = ok_code.

CLEAR ok_code.

CASE save_ok.

WHEN 'NEXT_LINE'.

flights-top_line = flights-top_line + 1.

limit = fill - lines + 1.

IF flights-top_line > limit.

flights-top_line = limit.

ENDIF.

WHEN 'PREV_LINE'.

flights-top_line = flights-top_line - 1.

IF flights-top_line < 0.

flights-top_line = 0.

ENDIF.

WHEN 'NEXT_PAGE'.

flights-top_line = flights-top_line + lines.

limit = fill - lines + 1.

IF flights-top_line > limit.

flights-top_line = limit.

ENDIF.

WHEN 'PREV_PAGE'.

flights-top_line = flights-top_line - lines.

IF flights-top_line < 0.

flights-top_line = 0.

ENDIF.

WHEN 'LAST_PAGE'.

flights-top_line = fill - lines + 1.

WHEN 'FIRST_PAGE'.

flights-top_line = 0.

ENDCASE.

ENDMODULE.

Screen 3000 codes:

PROCESS BEFORE OUTPUT.

MODULE status_3000.

LOOP AT itab into wa_hera with control FLIGHTS.

MODULE fill_table_control.

ENDLOOP.

PROCESS AFTER INPUT.

MODULE cancel AT EXIT-COMMAND.

LOOP AT ZHERA.

MODULE read_table_control.

ENDLOOP.

MODULE user_command_3000.

Can anyone tell me what is my problem? I keep getting the "LOOP" cannot be assigned to any field at the sentence 'LOOP AT itab into wa_hera with control FLIGHTS.'

[Former Member]

Hi,

there is no append statement in ur code.

u need to append the data into internal table.

write the module_append in PAI.

module_append.

append wa_tab into fs_tab.

plzz reward points if useful.