Logic needed to modify internal Table

[Former Member]

IF i_tab-bwart = '102' OR i_tab-bwart = '122' .

IF i_tab-lfbnr IS NOT INITIAL.

MOVE-CORRESPONDING i_tab TO wa_i_tab.

READ TABLE i_tab WITH KEY lfbnr = i_tab-lfbnr.

IF i_tab-menge = wa_i_tab-menge.

DELETE i_tab WHERE lfbnr = i_tab-lfbnr.

ELSEIF i_tab-menge NE wa_i_tab-menge.

i_tab-menge = i_tab-menge - wa_i_tab-menge.

MOVE i_tab-menge to i_tab-menge.

modify i_tab. " This is giving dump because i'm modifying in between Plz suggest

ENDIF.

ENDIF.

ELSE.

APPEND i_tab.

ENDIF.

[Former Member]

modify i_tab. Out side the Loop will give you short Dump.

1) Either Use:

Modify i_tab index <Index_no>.

2) Or Use:

Modify table i_tab[] from I_tab.                " Modify from Header Line

Regards,

Gurpreet

[Former Member]

you use the following technique.

declare a variable v_tabis type sy-tabix.

IF i_tab-bwart = '102' OR i_tab-bwart = '122' .
IF i_tab-lfbnr IS NOT INITIAL.
MOVE-CORRESPONDING i_tab TO wa_i_tab.
READ TABLE i_tab WITH KEY lfbnr = i_tab-lfbnr.
*v_tabix = sy-tabix.*
IF i_tab-menge = wa_i_tab-menge.
DELETE i_tab WHERE lfbnr = i_tab-lfbnr.
ELSEIF i_tab-menge NE wa_i_tab-menge.
i_tab-menge = i_tab-menge - wa_i_tab-menge.
MOVE i_tab-menge to i_tab-menge.
*modify i_tab index v_tabix.* " This is giving dump because i'm modifying in between Plz suggest
ENDIF. 
ENDIF.
ELSE.
APPEND i_tab.
ENDIF.

[Former Member]

Hi Abhut,

IF i_tab-bwart = '102' OR i_tab-bwart = '122' .
IF i_tab-lfbnr IS NOT INITIAL.
MOVE-CORRESPONDING i_tab TO wa_i_tab.
READ TABLE i_tab WITH KEY lfbnr = i_tab-lfbnr.
IF i_tab-menge = wa_i_tab-menge.
DELETE i_tab WHERE lfbnr = i_tab-lfbnr.
ELSEIF i_tab-menge NE wa_i_tab-menge.
i_tab-menge = i_tab-menge - wa_i_tab-menge.
MOVE i_tab-menge to i_tab-menge. " why do you need this line. move same value to same variable ??
modify i_tab from index sy-tabix transporting menge.. "look this.
ENDIF. 
ENDIF.
ELSE.
APPEND i_tab.
ENDIF.

Thanks