User command not working in ALV

[Former Member]

Hi,

I am generating the ALV grid using the FM REUSE_ALV_GRID_DISPLAY.

I want to capture the event of a button click on the toolbar.

When I click on the button or do anything on the screen like click on back button, it gives a runtime error saying "Assignment error: Overwriting a protected field."

There is a user_command perform in the report to handle the i_callback_user_command parameter of the FM.

Kindly suggest what could be missing.

Regards,

kshitija

[Former Member]

Hi,

I am generating the ALV grid using the FM REUSE_ALV_GRID_DISPLAY.

I want to capture the event of a button click on the toolbar.

When I click on the button or do anything on the screen like click on back button, it gives a runtime error saying "Assignment error: Overwriting a protected field."

There is a user_command perform in the report to handle the i_callback_user_command parameter of the FM.

Kindly suggest what could be missing.

Regards,

kshitija

[Former Member]

Hi

TO fetch the user command in your ALV, you need to create a FORM and do your coding to fetch the functionality for your FCODE of the button.

Then pass this FORM to i_callback_user_command.

I hope this will work for you.

Thanks

Lalit Gupta

[Former Member]

I have the form for user_command already.

While debugging I saw that this form is not being called at all.

in th call to the FM REUSE_ALV_GRID_DISPLAY i have passed the form name as well:

i_callback_user_command = 'USER_COMMAND'

Any hints why?

[Former Member]

Hi

Have you coded for the USER_COMMAND in the subroutine just refer below code:_

FORM USER_COMMAND USING L_UCOMM LIKE SY-UCOMM
LS_SELFIELD TYPE SLIS_SELFIELD.
CASE L_UCOMM.
WHEN '&IC1'.
READ TABLE IT_SFLIGHT INDEX LS_SELFIELD-TABINDEX INTO WA_SFLIGHT.
SELECT * FROM SPFLI INTO TABLE IT_SPFLI
WHERE CARRID = WA_SFLIGHT-CARRID.
WRITE : / SY-VLINE,(10) 'CARRID' CENTERED COLOR 7,
SY-VLINE,(10) 'CONNID' CENTERED COLOR 7,
SY-VLINE,(10) 'CITYFROM' CENTERED COLOR 7,
SY-VLINE,(10) 'CITYTO' CENTERED COLOR 7,
SY-VLINE,/ SY-ULINE.
LOOP AT IT_SPFLI INTO WA_SPFLI.
WRITE :/ SY-VLINE,(10) WA_SPFLI-CARRID COLOR 1,
SY-VLINE,(10) WA_SPFLI-CONNID COLOR 1,
SY-VLINE,(10) WA_SPFLI-CITYFROM COLOR 1,
SY-VLINE,(10) WA_SPFLI-CITYTO COLOR 1,
SY-VLINE,/ SY-ULINE.
ENDLOOP.
ENDCASE.
ENDFORM. "USER_COMMAND

Regards

Abhii

[Former Member]

yes

[Former Member]

can you post the relevant code??

Regards

Abhii

[Former Member]

FM call:

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'

EXPORTING

• I_BACKGROUND_ID = 'ALV_BACKGROUND'

• i_buffer_active = 'X'

i_callback_program = g_repid

i_callback_user_command = 'USER_COMMAND'

i_callback_pf_status_set = 'SET_PF_STATUS'

i_structure_name = 'ZFDD_HD'

is_layout = gs_layout

• i_save = 'X'

• IS_VARIANT = GS_VARIANT

• IT_EVENTS = GT_EVENTS[]

• I_SCREEN_START_COLUMN = 0 "Use coordinates for

• I_SCREEN_START_LINE = 0 "display as dialog box

• I_SCREEN_END_COLUMN = 0

• I_SCREEN_END_LINE = 0

IMPORTING

e_exit_caused_by_caller = g_exit_caused_by_caller

es_exit_caused_by_user = gs_exit_caused_by_user

TABLES

t_outtab = is_po_hdr

EXCEPTIONS

program_error = 1

OTHERS = 2.

User command perform:

FORM user_command USING p_ucomm LIKE sy-ucomm

p_selfield TYPE slis_selfield.

CASE p_ucomm.

WHEN '&F03' OR '&F15' OR '&F12'.

LEAVE TO SCREEN 0.

WHEN '&IC1'. " SAP standard code for double-clicking

call to another fm.

endcase.

endform.

[Former Member]

Hi

I beleive this is because you are not passing the program name in I_callback_program parameter in your FM.

declare a variable in which pass the Sy-Repid and then pass this variable to this parameter of FM Reuse_ALV_Grid.

See below.

DATA V_REPID TYPE SY-REPID. " VARIABLE FOR SY-REPID.

Also Why you are calling another FM in side the form for user command, and which fm you are calling.

I beleive there is a minor mistake.