table control is not displaying

[Former Member]

Hi All,

Is ther any thing wrong with the below code:

PROCESS BEFORE OUTPUT.

LOOP AT it_zmonths_data WITH CONTROL tabcontrol_1000 CURSOR

tabcontrol_1000-current_line.

MODULE status_1000.

ENDLOOP.

*

PROCESS AFTER INPUT.

MODULE user_command_1000.

LOOP AT it_zmonths_data.

ENDLOOP.

***********************************************

MODULE status_1000 OUTPUT.

SET PF-STATUS 'MENU_1000'.

• SET TITLEBAR 'xxx'.

IF NOT it_months_data[] IS INITIAL.

CLEAR:it_months_data.

LOOP AT it_months_data.

zmonths_data = it_months_data.

APPEND zmonths_data.

CLEAR zmonths_data.

ENDLOOP.

ENDIF.

ENDMODULE. " STATUS_1000 OUTPUT

**************************************************

MODULE user_command_1000 INPUT.

CASE sy-ucomm.

WHEN 'DISP'.

break hfrmm037.

PERFORM validate_period.

PERFORM get_month_days_weeks.

PERFORM get_data_from_custom_tables.

PERFORM get_data_for_months.

PERFORM z1000_include.

• break hfrmm037.

IF NOT it_months_data[] IS INITIAL.

DATA:lines TYPE sy-tabix.

DESCRIBE TABLE it_months_data LINES lines.

ENDIF.

tabcontrol_1000-lines = lines.

WHEN 'EXIT'.

LEAVE PROGRAM.

ENDCASE.

ENDMODULE. " USER_COMMAND_1000 INPUT

******************************************************************

And the error is:

This error is connected to the processing of an internal table with the

field or variable "IT_ZMONTHS_DATA", and was triggered within in the program.

Please advice.

Thanks a lot.

[Former Member]

it's my mistake. The table which I have defined at the screen level is the structure instead of database table or internal table.