TYPE-POOLS: SLIS?

[Former Member]

Hi All,

What is the Purpose of the declaring the below type – pools in the program. Why we need type-pools in the program.

TYPE-POOLS: SLIS,

GSETC.

Akshitha.

[Former Member]

Hi,

Type pools is a kind on include programs used for ALV reporting.

Thanks,

Sriram Ponna.

[Former Member]

Hi Akshitha

There ia one dictionary object known as Type-Group which contains predefined type groups , constants and Icons.

You cannot directly access that type-group in your program. For that you nee do write type-pools statement.

SLIS is the predifined type-group which contains predefined data types for Building ALV report. So when you doing ALV , you need write this statement.

Regards

Sandeep.

[Former Member]

Hi

SLIS is the type library for ALV grid.

If you'll use the ALV you have to add TYPE-POOLS : SLIS. command at the beginning of your code.

Consider these :

slis_t_fieldcat_alv is containing "_t_"

It means that it is an internal table and slis_fieldcat_alv is header line of that.

Here is a practical example for alv grid :

Just think that you have an internal table named 'ITAB' to show.

Step1 : First add these lines to your code :

TYPE-POOLS : SLIS.

DATA ALV_PROG_NAME LIKE SY-REPID.

ALV_PROG_NAME = SY-REPID.

DATA : ALV_ITAB_NAME(30),

L_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV.

ALV_ITAB_NAME = 'ITAB'. "!!Write here the name of your internal table

Step 2 : Add these two function :

The first function is filling the fieldcat L_FIELDCAT that you described, second is showing it on the screen.

CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'

EXPORTING

I_PROGRAM_NAME = ALV_PROG_NAME

I_INTERNAL_TABNAME = ALV_ITAB_NAME

• I_STRUCTURE_NAME =

• I_CLIENT_NEVER_DISPLAY = 'X'

I_INCLNAME = ALV_PROG_NAME

• I_BYPASSING_BUFFER =

• I_BUFFER_ACTIVE =

CHANGING

CT_FIELDCAT = L_FIELDCAT

EXCEPTIONS

INCONSISTENT_INTERFACE = 1

PROGRAM_ERROR = 2

OTHERS = 3

.

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 FUNCTION 'REUSE_ALV_GRID_DISPLAY'

EXPORTING

• I_INTERFACE_CHECK = ' '

• I_BYPASSING_BUFFER =

• I_BUFFER_ACTIVE = ' '

I_CALLBACK_PROGRAM = ALV_PROG_NAME

• I_CALLBACK_PF_STATUS_SET = ' '

• I_CALLBACK_USER_COMMAND = ' '

• I_CALLBACK_TOP_OF_PAGE = ' '

• I_CALLBACK_HTML_TOP_OF_PAGE = ' '

• I_CALLBACK_HTML_END_OF_LIST = ' '

• I_STRUCTURE_NAME =

• I_BACKGROUND_ID = ' '

• I_GRID_TITLE =

• I_GRID_SETTINGS =

• IS_LAYOUT =

IT_FIELDCAT = L_FIELDCAT

• IT_EXCLUDING =

• IT_SPECIAL_GROUPS =

• IT_SORT =

• IT_FILTER =

• IS_SEL_HIDE =

• I_DEFAULT = 'X'

• I_SAVE = ' '

• IS_VARIANT =

• IT_EVENTS =

• IT_EVENT_EXIT =

• IS_PRINT =

• IS_REPREP_ID =

• I_SCREEN_START_COLUMN = 0

• I_SCREEN_START_LINE = 0

• I_SCREEN_END_COLUMN = 0

• I_SCREEN_END_LINE = 0

• IT_ALV_GRAPHICS =

• IT_ADD_FIELDCAT =

• IT_HYPERLINK =

• I_HTML_HEIGHT_TOP =

• I_HTML_HEIGHT_END =

• IT_EXCEPT_QINFO =

• IMPORTING

• E_EXIT_CAUSED_BY_CALLER =

• ES_EXIT_CAUSED_BY_USER =

TABLES

T_OUTTAB = ITAB[] "Write here the name of your internal table + []

• 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.

[Former Member]

hI

In order to use the definitions of a type group, you have to integrate the type group into the program.

The TYPE-POOLS statement integrates the type group tpool into the current context. You can specify it in the global data declarations of an ABAP program or in the declaration section of a class or interface. The data types and constants of the type group are visible as of this statement in the current context.

If the integrated type group tpool integrates a further type group with the TYPE-POOLS statement, this new type group is also integrated into the program.