topic Re: about function module in alv in Application Development and Automation Discussions

about function module in alv

Former Member — Fri, 15 Sep 2006 08:59:00 GMT

hai all

iwant to know about few function modules in alv

1) reuse_alv_default_varients_get.

2)reuse alv_varients_f4

what is the use of these function modules

how to use these function modules, what r the structures used to use these function module. where to pass this in

in list and grid display function modules.

plz help me.

thanks & regards

sindu

Re: about function module in alv

Former Member — Fri, 15 Sep 2006 09:04:00 GMT

lets assume my selection screen field for variant is

PARAMETERS : P_VARI TYPE DISVARIANT-VARIANT. 
   "Layout
this is used to have one of the already saved variants to be displayed.


about<b> 'REUSE_ALV_VARIANT_DEFAULT_GET'</b>
this is used to get any default layout variant exists or not. we normally call this FM in INITIALIZATION Event.

*----------------------------------------------------------------------*
*                  INITIALIZATION
*----------------------------------------------------------------------*
<b>INITIALIZATION.</b>

  V_REPID = SY-REPID.
  V_VARIANT_SAVE = 'A'.
  CLEAR V_VARIANT.
  V_VARIANT-REPORT = V_REPID.
*-- Default-Variant
  V_DEF_VARIANT = V_VARIANT.
  CALL FUNCTION <b>'REUSE_ALV_VARIANT_DEFAULT_GET'</b>
    EXPORTING
      I_SAVE     = V_VARIANT_SAVE
    CHANGING
      CS_VARIANT = V_DEF_VARIANT
    EXCEPTIONS
      NOT_FOUND  = 2.
  IF SY-SUBRC = 0.
    P_VARI = V_DEF_VARIANT-VARIANT.
  ENDIF.


another FM <b>'REUSE_ALV_VARIANT_F4'</b>
this is to give F4 help to the user to choose one of the layouts,which already saved.

*-- F4 help for Variant
<b>AT SELECTION-SCREEN ON VALUE-REQUEST FOR P_VARI.
  PERFORM F4_FOR_VARIANT.</b>
*----------------------------------------------------------------------*
*       FORM  F4_FOR_VARIANT                                           *
*----------------------------------------------------------------------*
*       Provide F4 help for the Variant                                *
*----------------------------------------------------------------------*
FORM F4_FOR_VARIANT .

  CALL FUNCTION 'REUSE_ALV_VARIANT_F4'
    EXPORTING
      IS_VARIANT    = V_VARIANT
      I_SAVE        = V_VARIANT_SAVE
    IMPORTING
      E_EXIT        = V_VARIANT_EXIT
      ES_VARIANT    = V_DEF_VARIANT
    EXCEPTIONS
      NOT_FOUND     = 1
      PROGRAM_ERROR = 2
      OTHERS        = 3.
  IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE 'S' NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ELSE.
    IF V_VARIANT_EXIT = SPACE.
      P_VARI = V_DEF_VARIANT-VARIANT.
    ENDIF.
  ENDIF.
ENDFORM.                    " F4_FOR_VARIANT

and while calling the ALV function module,

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      I_CALLBACK_PROGRAM = V_REPID
      IT_FIELDCAT        = IT_FIELDCAT
      I_DEFAULT          = 'X'
      I_SAVE             = 'A'
<b>      IS_VARIANT         = V_VARIANT</b> 
   TABLES
      T_OUTTAB           = P_ITAB[]
    EXCEPTIONS
      PROGRAM_ERROR      = 1
      OTHERS             = 2.
  IF SY-SUBRC <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.

Message was edited by: Srikanth Kidambi

Re: about function module in alv

Former Member — Fri, 15 Sep 2006 09:06:20 GMT

- reuse_alv_default_varients_get: it returns the default layout variant, so you can inizialize the parameters you have to transfer to the ALV:

PARAMETERS: P_VARI LIKE DISVARIANT-VARIANT.

INITIALIZATION.

DATA: G_SAVE(1) TYPE C VALUE 'A',

GX_VARIANT LIKE DISVARIANT.

GX_VARIANT-REPORT = SY-REPID.

GX_VARIANT-USERNAME = SY-UNAME.

CALL FUNCTION 'REUSE_ALV_VARIANT_DEFAULT_GET'

EXPORTING

I_SAVE = G_SAVE

CHANGING

CS_VARIANT = GX_VARIANT

EXCEPTIONS

WRONG_INPUT = 1

NOT_FOUND = 2

PROGRAM_ERROR = 3

OTHERS = 4.

IF SY-SUBRC = 0.

P_VARI = GX_VARIANT-VARIANT.

ELSE.

CLEAR GX_VARIANT.

ENDIF.

2) reuse alv_varients_f4 is to manage the search help for layout variant:

AT SELECTION-SCREEN ON VALUE-REQUEST FOR P_VARI.

G_VARIANT-REPORT = SY-REPID.

G_VARIANT-USERNAME = SY-UNAME.

CALL FUNCTION 'REUSE_ALV_VARIANT_F4'

EXPORTING

IS_VARIANT = G_VARIANT

I_SAVE = G_SAVE

IMPORTING

E_EXIT = G_EXIT

ES_VARIANT = GX_VARIANT

EXCEPTIONS

NOT_FOUND = 2.

IF SY-SUBRC = 2.

MESSAGE ID SY-MSGID TYPE 'S' NUMBER SY-MSGNO

WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

CLEAR: G_VARIANT, GX_VARIANT.

ELSE.

IF G_EXIT = SPACE.

P_VARI = GX_VARIANT-VARIANT.

ENDIF.

Max

Re: about function module in alv

Former Member — Fri, 15 Sep 2006 09:08:40 GMT

Hi sindu,

answer to 2)

try this extract:

SELECTION-SCREEN: BEGIN OF LINE.

SELECTION-SCREEN: COMMENT 01(30) T_VARIAN.

PARAMETERS: P_VARIAN LIKE DISVARIANT-VARIANT.

SELECTION-SCREEN: END OF LINE.

DATA: VARIANT LIKE DISVARIANT.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR P_VARIAN.

DATA: I_VARIANT LIKE DISVARIANT.

DATA: E_VARIANT LIKE DISVARIANT.

I_VARIANT-REPORT = SY-REPID.

CALL FUNCTION 'REUSE_ALV_VARIANT_F4'

EXPORTING

IS_VARIANT = I_VARIANT

I_SAVE = 'A'

IMPORTING

ES_VARIANT = E_VARIANT

EXCEPTIONS

NOT_FOUND = 1

PROGRAM_ERROR = 2

OTHERS = 3.

IF SY-SUBRC <> 0.

MESSAGE I010 WITH 'Es sind keine Varianten angelegt'.

CLEAR: P_VARIAN.

ELSE.

P_VARIAN = E_VARIANT-VARIANT.

ENDIF.

INITIALIZATION.

T_VARIAN = 'Anzeigevariante'.

...

START-OF-SELECTION.

...

VARIANT-VARIANT = P_VARIAN.

...

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'

EXPORTING

...

IS_VARIANT = VARIANT

...

Regards, Dieter

Re: about function module in alv

Former Member — Fri, 15 Sep 2006 09:12:29 GMT

hi Priya,

Check this out

http://www.sap-img.com/abap/use-simple-alv-functions-to-make-reporting-easy.htm

Regards,

Santosh

Re: about function module in alv

Former Member — Fri, 15 Sep 2006 09:24:44 GMT

HI,

check this.

REPORT Z_TEST_alv_variant .

TYPE-POOLS : SLIS.

PARAMETERS: ONE RADIOBUTTON GROUP G1 DEFAULT 'X',

TWO RADIOBUTTON GROUP G1.

DATA: BEGIN OF I_TAB OCCURS 0,

FIELD1 TYPE I,

FIELD2 TYPE I,

END OF I_TAB.

DATA: GT_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV,

LS_FIELDCAT TYPE SLIS_FIELDCAT_ALV.

DATA: L_VARIANT TYPE DISVARIANT,

LX_VARIANT LIKE DISVARIANT,

L_SAVE TYPE C,

L_EXIT(1) TYPE C.

SELECTION-SCREEN BEGIN OF BLOCK 0 WITH FRAME TITLE TEXT-VAR.

PARAMETERS: P_VARI LIKE DISVARIANT-VARIANT.

SELECTION-SCREEN END OF BLOCK 0.

INITIALIZATION.

L_SAVE = 'A'.

PERFORM VARIANT_INIT.

Get default variant

LX_VARIANT = L_VARIANT.

CALL FUNCTION 'REUSE_ALV_VARIANT_DEFAULT_GET'

EXPORTING

I_SAVE = L_SAVE

CHANGING

CS_VARIANT = LX_VARIANT

EXCEPTIONS

NOT_FOUND = 2.

IF SY-SUBRC = 0.

P_VARI = LX_VARIANT-VARIANT.

ENDIF.

Process on value request

AT SELECTION-SCREEN ON VALUE-REQUEST FOR P_VARI.

PERFORM F4_FOR_VARIANT.

I_TAB-FIELD1 = 19.

I_TAB-FIELD2 = 20.

APPEND I_TAB.

I_TAB-FIELD1 = 19.

I_TAB-FIELD2 = 20.

APPEND I_TAB.

I_TAB-FIELD1 = 19.

I_TAB-FIELD2 = 20.

APPEND I_TAB.

I_TAB-FIELD1 = 19.

I_TAB-FIELD2 = 20.

APPEND I_TAB.

I_TAB-FIELD1 = 19.

I_TAB-FIELD2 = 20.

APPEND I_TAB.

PERFORM INITIALIZE_FIELDCAT USING GT_FIELDCAT[].

PERFORM CALL_ALV TABLES I_TAB[]

USING GT_FIELDCAT.

&----

*& Form initialize_fieldcat

&----

text

----

-->P_GT_FIELDCAT[] text

----

FORM INITIALIZE_FIELDCAT USING L_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV.

LS_FIELDCAT-FIELDNAME = 'FIELD1'.

LS_FIELDCAT-KEY = 'X'.

LS_FIELDCAT-COL_POS = 1.

LS_FIELDCAT-SELTEXT_S = 'Work center'.

LS_FIELDCAT-SELTEXT_L = 'Work center'.

APPEND LS_FIELDCAT TO L_FIELDCAT.

CLEAR LS_FIELDCAT.

LS_FIELDCAT-FIELDNAME = 'FIELD2'.

LS_FIELDCAT-KEY = ' '.

LS_FIELDCAT-COL_POS = 2.

LS_FIELDCAT-SELTEXT_S = 'Work center2'.

LS_FIELDCAT-SELTEXT_L = 'Work center2'.

APPEND LS_FIELDCAT TO L_FIELDCAT.

CLEAR LS_FIELDCAT.

ENDFORM. " initialize_fieldcat

&----

*& Form call_alv

&----

text

----

-->P_GT_FIELDCAT text
-->P_I_TAB text

----

FORM CALL_ALV TABLES P_TAB

USING P_GT_FIELDCAT .

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'

EXPORTING

I_CALLBACK_PROGRAM = SY-REPID

IT_FIELDCAT = P_GT_FIELDCAT

I_DEFAULT = 'X'

IS_VARIANT = L_VARIANT

I_SAVE = L_SAVE

TABLES

T_OUTTAB = P_TAB[]

EXCEPTIONS

PROGRAM_ERROR = 1

OTHERS = 2.

IF SY-SUBRC <> 0.

MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

ENDFORM. " call_alv

&----

*& Form VARIANT_INIT

&----

text

----

FORM VARIANT_INIT.

CLEAR L_VARIANT.

L_VARIANT-REPORT = SY-REPID.

ENDFORM. " VARIANT_INIT

&----

*& Form variant_SELECTION_SCREEN

&----

text

----

FORM VARIANT_SELECTION_SCREEN .

IF NOT P_VARI IS INITIAL.

MOVE L_VARIANT TO LX_VARIANT.

MOVE P_VARI TO LX_VARIANT-VARIANT.

CALL FUNCTION 'REUSE_ALV_VARIANT_EXISTENCE'

EXPORTING

I_SAVE = L_SAVE

CHANGING

CS_VARIANT = LX_VARIANT.

L_VARIANT = LX_VARIANT.

ELSE.

PERFORM VARIANT_INIT.

ENDIF.

ENDFORM. " variant_SELECTION_SCREEN

&----

*& Form F4_FOR_VARIANT

&----

text

----

FORM F4_FOR_VARIANT.

CALL FUNCTION 'REUSE_ALV_VARIANT_F4'

EXPORTING

IS_VARIANT = L_VARIANT

I_SAVE = L_SAVE

IMPORTING

E_EXIT = L_EXIT

ES_VARIANT = LX_VARIANT

EXCEPTIONS

NOT_FOUND = 2.

IF SY-SUBRC = 2.

MESSAGE ID SY-MSGID TYPE 'S' NUMBER SY-MSGNO

WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ELSE.

IF L_EXIT = SPACE.

P_VARI = LX_VARIANT-VARIANT.

ENDIF.

ENDFORM. "F4_FOR_VARIANT

Regards,

Laxmi.