topic ALV Using ABAPOO in Application Development and Automation Discussions

ALV Using ABAPOO

Former Member — Fri, 21 Jul 2006 12:05:27 GMT

hi,

i am new in ABAP OO, i want to develop a simple report in ALV using ABAP OO, please help me to do that.

thanks in advance

Re: ALV Using ABAPOO

oliver — Fri, 21 Jul 2006 12:10:34 GMT

Hi Jodinger,

take a look into the class cl_gui_alv_grid on SE24. This is the OO implementation of the ALV Grid. You will find more documentation on that on help.sap.com.

It's possible to subclass this or write a wrapper like this:

* DEFINITION
CLASS lcl_alv_wrapper DEFINITION.

  PUBLIC SECTION.
    METHODS:
      constructor
        IMPORTING i_parent    TYPE REF TO cl_gui_container OPTIONAL,

      set_title
        IMPORTING i_title     TYPE lvc_s_layo-grid_title,

      set_parent
        IMPORTING i_parent    TYPE REF TO cl_gui_container,

      show,
      free.

  PROTECTED SECTION.
    METHODS:
      init_outtab
        IMPORTING i_tabstruct TYPE dd02l-tabname
        CHANGING  i_outtab    TYPE ANY TABLE,


*     Referenz auf Ausgabetabelle
      rt_outtab TYPE REF TO data,

*     Zeiger auf ALV
      r_alv TYPE REF TO cl_gui_alv_grid.

ENDCLASS.

* IMPLEMENTATION
CLASS lcl_alv_wrapper IMPLEMENTATION.

************************************************************************
* Form  constructor
************************************************************************
  METHOD constructor.

    r_parent = i_parent.

    CALL METHOD disable_buffer.

  ENDMETHOD.

************************************************************************
* Form  init_outtab
************************************************************************
  METHOD init_outtab.

    h_tabstruct = i_tabstruct.

*   Referenz auf Ausgabetabelle sichern
    GET REFERENCE OF i_outtab INTO rt_outtab.

  ENDMETHOD.

************************************************************************
* Form  show
************************************************************************
  METHOD show.

    FIELD-SYMBOLS: <itab> TYPE STANDARD TABLE.

    CHECK NOT r_parent IS INITIAL.

    ASSIGN rt_outtab->* TO <itab>.
    CHECK sy-subrc IS INITIAL.

*   erzeuge ALV Grid Objekt
    CREATE OBJECT r_alv
      EXPORTING i_parent = r_parent.

*   Feldkatalog aus übergebener Struktur erzeugen
    CALL METHOD build_fieldcat.
    CALL METHOD build_sorttab.
    CALL METHOD build_colortab.
    CALL METHOD build_layout.
    CALL METHOD build_variant.

*   ALV Grid vorbereiten
    CALL METHOD r_alv->set_table_for_first_display
      EXPORTING
        i_bypassing_buffer = h_use_buffer
        is_variant         = s_variant
        is_layout          = s_layout
        i_save             = 'A'
      CHANGING
        it_fieldcatalog    = it_fieldcat
        it_sort            = it_sortdef
        it_outtab          = <itab>.

*   ALV bekommt Fokus
    CALL METHOD cl_gui_control=>set_focus
         EXPORTING control = r_alv.

  ENDMETHOD.

  METHOD free.

*   ALV bekommt Fokus
    CALL METHOD r_alv->free.

    FREE r_alv.

  ENDMETHOD.

ENDCLASS.

It's just an extraction of my code so don't expect it to work but it should give you some hints.

Regards,

Re: ALV Using ABAPOO

Former Member — Fri, 21 Jul 2006 12:12:14 GMT

Hi,

these are the steps to create a report using OO techniques.

1. Create a Control (for Custom and Split Containers only)

2. Instantiate a Container Object (in case of Custom and Split Containers, specify the control which is created by us in Screen painter) CREATE OBJECT <Container Object>

3. Instantiate an Object of the kind of report that has to be displayed (List, Grid or Tree). CREATE OBJECT <List/Grid/Tree>. Here we need to specify the Parent Container as the <Container object> so that it sits in that container.

4. Call appropriate methods to display the report on the screen. CALL METHOD <List/Grid/Tree>-><Method Name>

If you need a sample pgm do let me know.

Regards,

Sumit.

Re: ALV Using ABAPOO

Former Member — Fri, 21 Jul 2006 12:12:34 GMT

Hi Joginder,

In your screen, create a container element(name is CONTAINER)

In the main program , declare the variables like this

data: container type ref to CL_GUI_CUSTOM_CONTAINER,

alv type ref to CL_GUI_ALV_GRID.

data: itab type table of sflight with header line.

In PBO

If container is initial.

create object cont

exporting container_name = 'CONTAINER'.

create object alv

exporting

parent = cont.

SELECT * FROM SFLIGHT INTO TABLE ITAB.

call method alv->set_table_for_first_display

exporting

i_structure_name = 'SFLIGHT'

changing

it_outtab = ITAB[].

endif.

This is the simplest way of creating ALV using OO ABAP.

You can refer this document.

http://esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt

You can explore OOALV through this link.

http://esnips.com/doc/2d953590-e8c5-490c-a607-d1ab7cf517d7/ALV.pdf

Regards,

SP.

Re: ALV Using ABAPOO

Former Member — Fri, 21 Jul 2006 12:13:09 GMT

Hello,

Please look into the example prgrams

BCALV_GRID_DEMO

or you can also see in se38 BCAL*

Reward points if helps.

Thanks,

Krishna

Re: ALV Using ABAPOO

Laxmana_Appana_ — Fri, 21 Jul 2006 12:13:35 GMT

Hi,

Go to SE38 and search for programs using pattern 'BCALV', you will have many examples in the system or use transaction DWDM for sample programs.

Regards

Appana

Re: ALV Using ABAPOO

Former Member — Fri, 21 Jul 2006 12:17:06 GMT

Hi Joginder,

Just to brief you....

data: OBJ_CNTR_DETAIL TYPE SCRFNAME VALUE 'ZMPGUI_DETAILS_DISPLAY'(this is name of the custom container created in the screen),

OBJ_GRID_DETAIL TYPE REF TO CL_GUI_ALV_GRID,

OBJ_CUSTOM_DETAIL TYPE REF TO CL_GUI_CUSTOM_CONTAINER.

METHOD CREATE_AND_INIT_ALV.

*--Creating the coustom container object to display item details

IF OBJ_GRID_DETAIL IS INITIAL.

CREATE OBJECT OBJ_CUSTOM_DETAIL

EXPORTING CONTAINER_NAME = OBJ_CNTR_DETAIL.

*--Creating the alv grid object to display item details

CREATE OBJECT OBJ_GRID_DETAIL

EXPORTING I_PARENT = OBJ_CUSTOM_DETAIL.

ELSE.

*--Refreshing the item details table displayed using alv grid

CALL METHOD OBJ_GRID_DETAIL->REFRESH_TABLE_DISPLAY.

ENDIF.

END METHOD.

Now after doing this build a fieldcatalog, layout as we do in normal ALV

now to display the ALV

*--displaying the item details

CALL METHOD OBJ_GRID_DETAIL->SET_TABLE_FOR_FIRST_DISPLAY

EXPORTING

IS_LAYOUT = X_LAYOUT

IS_VARIANT = X_VARIANT

I_SAVE = 'A'

CHANGING

IT_FIELDCATALOG = IT_FLDCAT_DETAILS(field catalog)

IT_OUTTAB = IT_ORDERS[](table to be diaplyed).

Hope this helps.

Regards,

Vidya

Re: ALV Using ABAPOO

Former Member — Fri, 21 Jul 2006 12:57:14 GMT

Hi Joginder,

Here is the sample example for ALV using ABAP Objects.

Alv report to use double click method.

REPORT ZVASU_ALVGRID_INTERACTIVE1 .

DATA: GRID1 TYPE REF TO CL_GUI_ALV_GRID,

G_CUSTOM_CONTAINER TYPE REF TO CL_GUI_CUSTOM_CONTAINER,

GT_FCAT TYPE LVC_T_FCAT,

GS_LAYOUT TYPE LVC_S_LAYO.

DATA: BEGIN OF T_VBAK OCCURS 0.

INCLUDE STRUCTURE VBAK.

DATA: END OF T_VBAK.

DATA: OK_CODE LIKE SY-UCOMM,

REPID LIKE SY-REPID.

CLASS LCL_EVENT_HANDLER DEFINITION.

PUBLIC SECTION.

METHODS: HANDLE_DOUBLE_CLICK FOR EVENT DOUBLE_CLICK OF CL_GUI_ALV_GRID

IMPORTING E_ROW E_COLUMN.

ENDCLASS.

DATA GR_EVENT_HANDLER TYPE REF TO LCL_EVENT_HANDLER.

SELECT * FROM KNA1 INTO CORRESPONDING FIELDS OF TABLE T_KNA1 UP TO 10 ROWS.

CALL SCREEN 100.

CLASS LCL_EVENT_HANDLER IMPLEMENTATION.

METHOD HANDLE_DOUBLE_CLICK.

SET PARAMETER ID 'AAT' FIELD T_VBAK-AUART.

CALL TRANSACTION 'VA01' AND SKIP FIRST SCREEN.

ENDMETHOD.

ENDCLASS.

&----

*& Module ALV_DISPLAY_100 OUTPUT

&----

text

----

MODULE ALV_DISPLAY_100 OUTPUT.

SELECT * FROM VBAK INTO CORRESPONDING FIELDS OF TABLE T_VBAK UP TO 10 ROWS.

PERFORM PREPARE_FIELD_CATALOG CHANGING GT_FCAT.

PERFORM PREPARE_LAYOUT CHANGING GS_LAYOUT.

PERFORM DISPLAY_ALV.

CREATE OBJECT GR_EVENT_HANDLER.

SET HANDLER GR_EVENT_HANDLER->HANDLE_DOUBLE_CLICK FOR GRID1.

*PERFORM DISPLAY_ALV.

ENDMODULE. " ALV_DISPLAY_100 OUTPUT

*CLASS LCL_EVENT_HANDLER IMPLEMENTATION.

METHOD HANDLE_DOUBLE_CLICK.
LEAVE PROGRAM.
ENDMETHOD.

*ENDCLASS.

&----

*& Form PREPARE_FIELD_CATALOG

&----

text

----

<--P_GT_FCAT text

----

FORM PREPARE_FIELD_CATALOG CHANGING P_GT_FCAT TYPE LVC_T_FCAT.

DATA: T_FCAT TYPE LVC_S_FCAT.

T_FCAT-COL_POS = '1'.

T_FCAT-FIELDNAME = 'VBELN'.

T_FCAT-SCRTEXT_M = 'ORDER_NUM'.

APPEND T_FCAT TO GT_FCAT.

T_FCAT-COL_POS = '2'.

T_FCAT-FIELDNAME = 'ERDAT'.

T_FCAT-SCRTEXT_M = 'ORDER_DATE'.

APPEND T_FCAT TO GT_FCAT.

T_FCAT-COL_POS = '3'.

T_FCAT-FIELDNAME = 'NETWR'.

T_FCAT-SCRTEXT_M = 'ORDER_VALUE'.

APPEND T_FCAT TO GT_FCAT.

T_FCAT-COL_POS = '4'.

T_FCAT-FIELDNAME = 'AUART'.

T_FCAT-SCRTEXT_M = 'ORDER_TYPE'.

APPEND T_FCAT TO GT_FCAT.

ENDFORM. " PREPARE_FIELD_CATALOG

&----

*& Form PREPARE_LAYOUT

&----

text

----

<--P_GS_LAYOUT text

----

FORM PREPARE_LAYOUT CHANGING P_GS_LAYOUT TYPE LVC_S_LAYO.

P_GS_LAYOUT-ZEBRA = 'X'.

P_GS_LAYOUT-GRID_TITLE = 'CUST_REPORT'.

ENDFORM. " PREPARE_LAYOUT

&----

*& Form DISPLAY_ALV

&----

text

----

--> p1 text
<-- p2 text

----

FORM DISPLAY_ALV .

IF G_CUSTOM_CONTAINER IS INITIAL.

CREATE OBJECT G_CUSTOM_CONTAINER

EXPORTING CONTAINER_NAME = 'CCCONTAINER'.

CREATE OBJECT GRID1 EXPORTING

I_PARENT = G_CUSTOM_CONTAINER.

CALL METHOD GRID1->SET_TABLE_FOR_FIRST_DISPLAY

EXPORTING

I_BUFFER_ACTIVE =
I_BYPASSING_BUFFER =
I_CONSISTENCY_CHECK =
I_STRUCTURE_NAME =
IS_VARIANT =
I_SAVE =
I_DEFAULT = 'X'

IS_LAYOUT = GS_LAYOUT

IS_PRINT =
IT_SPECIAL_GROUPS =
IT_TOOLBAR_EXCLUDING =
IT_HYPERLINK =
IT_ALV_GRAPHICS =
IT_EXCEPT_QINFO =

CHANGING

IT_OUTTAB = T_VBAK[]

IT_FIELDCATALOG = GT_FCAT

IT_SORT =
IT_FILTER =

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.

CALL METHOD GRID1->REFRESH_TABLE_DISPLAY

EXPORTING
IS_STABLE =
I_SOFT_REFRESH =

EXCEPTIONS

FINISHED = 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. " DISPLAY_ALV

&----

*& Module USER_AFTER_CLICK_100 INPUT

&----

text

----

MODULE USER_AFTER_CLICK_100 INPUT.

CASE SY-UCOMM.

WHEN 'EXIT'.

LEAVE PROGRAM.

ENDCASE.

With Regards

Vasu