Do we need a DDIC structure in ALV

[Former Member]

Hi,Iam new to OO ALV,this is my first program,do we need a DDIC structure if we use 'set_table_for_first_display' method?

[Former Member]

Hi,

try this program.

BCALV_GRID_DEMO

Code:

PROGRAM TEST.

DATA: OK_CODE LIKE SY-UCOMM,

GT_SFLIGHT TYPE TABLE OF SFLIGHT,

G_CONTAINER TYPE SCRFNAME VALUE 'BCALV_GRID_DEMO_0100_CONT1',

GRID1 TYPE REF TO CL_GUI_ALV_GRID,

G_CUSTOM_CONTAINER TYPE REF TO CL_GUI_CUSTOM_CONTAINER.

----

---

• MAIN *

----

---

SELECT * FROM SFLIGHT INTO TABLE GT_SFLIGHT.

CALL SCREEN 100.

----

---

• MODULE PBO OUTPUT *

----

---

MODULE PBO OUTPUT.

SET PF-STATUS 'MAIN100'.

IF G_CUSTOM_CONTAINER IS INITIAL.

CREATE OBJECT G_CUSTOM_CONTAINER

EXPORTING CONTAINER_NAME = G_CONTAINER.

CREATE OBJECT GRID1

EXPORTING I_PARENT = G_CUSTOM_CONTAINER.

CALL METHOD GRID1->SET_TABLE_FOR_FIRST_DISPLAY

EXPORTING I_STRUCTURE_NAME = 'SFLIGHT'

CHANGING IT_OUTTAB = GT_SFLIGHT.

ENDIF.

ENDMODULE.

----

---

• MODULE PAI INPUT *

----

---

MODULE PAI INPUT.

• to react on oi_custom_events:

call method cl_gui_cfw=>dispatch.

CASE OK_CODE.

WHEN 'EXIT'.

PERFORM EXIT_PROGRAM.

WHEN OTHERS.

• do nothing

ENDCASE.

CLEAR OK_CODE.

ENDMODULE.

----

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• FORM EXIT_PROGRAM *

----

---

FORM EXIT_PROGRAM.

• CALL METHOD G_CUSTOM_CONTAINER->FREE.

• CALL METHOD CL_GUI_CFW=>FLUSH.

LEAVE PROGRAM.

ENDFORM.

Regards,

Venkatesh.

[Former Member]

Hi,

Its not mandatory, to have a DDIC structure, its of most importance only when you use fieldcatalog.

Thanks & Regards,

Navneeth K.

[Former Member]

No, its not mandatory to use a DDIC structure. You can build a fieldcatalog.

CALL METHOD G_ALV_GRID->SET_TABLE_FOR_FIRST_DISPLAY
CHANGING
IT_OUTTAB = <internal table>
IT_FIELDCATALOG = <field catalog>
EXCEPTIONS
INVALID_PARAMETER_COMBINATION = 1
PROGRAM_ERROR = 2
TOO_MANY_LINES = 3
OTHERS = 4.
IF SY-SUBRC 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4. 
ENDIF.

Regards

Kannaiah

[Former Member]

Thanks,Iam using 'LVC_FIELDCATALOG_MERGE' but after calling this function module name the fieldcatalog is in initial stage only,why? I have tried by passing the Internal Table name and the structure with types declaraion but none worked.

[Former Member]

You are workin Object oriented approach or Classical approach.

[former_member188685]

in case of LVC function you need to have a DDIC structure. so to avoid this there is a work around. for more information

you can check this wiki article

https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/creating%2blvc%2bfieldcatalog%2busing%2b...

[NAeda]

Hi,

To display the output we need either structure or fieldcatlog..!

if u want to use structure,directly u can pass this structrure , other wise build the field catlog and pass this fieldcatlog internal table to your function module..

Thanks

Regards

Aeda

[Former Member]

Thanks Vijay,u have solved my problem.