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Old 05-22-2009, 05:32 AM
bholus7 bholus7 is offline
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Default Use Simple ALV Functions to Make Reporting Easy

&---------------------------------------------------------------------*
*& Report ZBC_ALV_EXAMPLE *
*& *
*&---------------------------------------------------------------------*
* This program explains how we can use simple ALV functions to make *
* reporting easy and looks pretty
************************************************** **********************
* Programmer : Venkat Reddy ETA *
* Date : 10/02/04 *
************************************************** **********************
* Maintenance Log *
*----------------------------------------------------------------------*
* Changed By Date Transport# Description *
*------------ ---------------------------------------------------------*
* Venkat Reddy 10/02/04 EGD913575 Changed program to avoid *
*----------------------------------------------------------------------*
REPORT ZBC_ALV_EXAMPLE.

************************************************** **********************
* D-A-T-A D-E-C-L-A-R-A-T-I-O-N-S *
************************************************** **********************
tables: sflight.

**-- TYPE-POOLS Definition
**Includes the types and constants of a type group. Since the types and
*constants specified in a type group have global validity, you cannot
*use the statement within a FORM or FUNCTION.
type-pools: slis.
PARAMETERS: P_VARI LIKE DISVARIANT-VARIANT.

**-- ALV variables
*****- Field Catalog structure
data: ls_fieldcat type slis_fieldcat_alv, "Field Catalog list

**--- Field Catalog table
gt_fieldcat type slis_t_fieldcat_alv, "Field Catalog

**--- Layout ( How you would like to see the output )
gs_layout type slis_layout_alv, "List Layout

**-- Report name
g_repid like sy-repid,
g_save(1) type c,
g_exit(1) type c,
g_variant like disvariant,
gx_variant like disvariant.


**-- Flight Info Internal table
data: lt_sflight like sflight occurs 0 with header line.

************************************************** **********************
* C-O-N-S-T-A-N-T-S *
************************************************** **********************

************************************************** **********************
* S-E-L-E-C-T-I-O-N S-C-R-E-E-N *
************************************************** **********************

selection-screen begin of block a with frame title text-100.
select-options: s_carrid for sflight-carrid,
s_connid for sflight-connid,
s_fldate for sflight-fldate default sy-datum.
selection-screen end of block a .


************************************************** **********************
* I-N-I-T-I-A-L-I-Z-A-T-I-O-N *
************************************************** **********************
initialization.

g_repid = sy-repid.

**-- Fill ALV field catalog
perform initialize_fieldcat using gt_fieldcat[].

***-- Build Events
* perform build_eventtab using gt_events[].
*
**-- Read the default variant
perform initialize_variant.

************************************************** **********************
* A-T S-E-L-E-C-T-I-O-N S-C-R-E-E-N *
************************************************** **********************
at selection-screen on value-request for p_vari.
**-- Display all existing variants
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.
else.
if g_exit = space.
p_vari = gx_variant-variant.
endif.
endif.


************************************************** **********************
* S-T-A-R-T O-F S-E-L-E-C-T-I-O-N *
************************************************** **********************
start-of-selection.

**-- Read Flight information.
perform read_flight_info.

**-- Fill ALV field catalog and display report.
if not lt_sflight[] is initial.
perform dislay_alv_report.
endif.

*================================================= =====================*
* FORMS / SUB ROUTINES *
*================================================= =====================

*&---------------------------------------------------------------------*
*& Form initialize_fieldcat
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* -->P_GT_FIELDCAT[] text
*----------------------------------------------------------------------*
form initialize_fieldcat using l_fieldcat type slis_t_fieldcat_alv.

clear ls_fieldcat.

* Air line
ls_fieldcat-fieldname = 'CARRID'.
ls_fieldcat-key = 'X'.
ls_fieldcat-col_pos = 1.
ls_fieldcat-seltext_s = 'Airline'.
ls_fieldcat-seltext_l = 'Airline'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Flight Number
ls_fieldcat-fieldname = 'CONNID'.
ls_fieldcat-key = 'X'.
ls_fieldcat-col_pos = 2.
ls_fieldcat-seltext_s = 'Flight Number'.
ls_fieldcat-seltext_l = 'Flight Number'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Flight date
ls_fieldcat-fieldname = 'FLDATE'.
ls_fieldcat-key = 'X'.
ls_fieldcat-col_pos = 3.
ls_fieldcat-seltext_s = 'Flight date'.
ls_fieldcat-seltext_l = 'Flight date'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Airfare
ls_fieldcat-fieldname = 'PRICE'.
ls_fieldcat-col_pos = 4.
ls_fieldcat-do_sum = 'X'.
ls_fieldcat-seltext_s = 'Airfare'.
ls_fieldcat-seltext_l = 'Airfare'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Local Currency
ls_fieldcat-fieldname = 'CURRENCY'.
ls_fieldcat-col_pos = 5.
ls_fieldcat-seltext_s = 'Local Currency'.
ls_fieldcat-seltext_l = 'Local Currency'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Plane Type
ls_fieldcat-fieldname = 'PLANETYPE'.
ls_fieldcat-col_pos = 6.
ls_fieldcat-seltext_s = 'Plane type'.
ls_fieldcat-seltext_l = 'Plane type'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Maximum capacity
ls_fieldcat-fieldname = 'SEATSMAX'.
ls_fieldcat-col_pos = 7.
ls_fieldcat-seltext_s = 'Max. seats'.
ls_fieldcat-seltext_l = 'Max. seats'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Occupied seats
ls_fieldcat-fieldname = 'SEATSOCC'.
ls_fieldcat-col_pos = 8.
ls_fieldcat-seltext_s = 'Seats occupied'.
ls_fieldcat-seltext_l = 'Seats occupied'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Total
ls_fieldcat-fieldname = 'PAYMENTSUM'.
ls_fieldcat-col_pos = 9.
ls_fieldcat-do_sum = 'X'.
ls_fieldcat-seltext_s = 'Total amount'.
ls_fieldcat-seltext_l = 'Total amount'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Total
ls_fieldcat-fieldname = 'PAYMENTSUM'.
ls_fieldcat-col_pos = 9.
ls_fieldcat-do_sum = 'X'.
ls_fieldcat-seltext_s = 'Total amount'.
ls_fieldcat-seltext_l = 'Total amount'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.


* Max. Capacity, Buss. Class
ls_fieldcat-fieldname = 'SEATSMAX_B'.
ls_fieldcat-col_pos = 10.
ls_fieldcat-seltext_s = 'Max.Buss.class cap.'.
ls_fieldcat-seltext_l = 'Max.Buss.class cap.'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Max. occupancy, Buss. Class
ls_fieldcat-fieldname = 'SEATSOCC_B'.
ls_fieldcat-col_pos = 11.
ls_fieldcat-seltext_s = 'Max.Bus.CL.occupied'.
ls_fieldcat-seltext_l = 'Max.Bus.CL.occupied'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Max. Capacity, First. Class
ls_fieldcat-fieldname = 'SEATSMAX_F'.
ls_fieldcat-col_pos = 12.
ls_fieldcat-seltext_s = 'Max.Buss.class cap.'.
ls_fieldcat-seltext_l = 'Max.Buss.class cap.'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.

* Max. occupancy, First. Class
ls_fieldcat-fieldname = 'SEATSOCC_F'.
ls_fieldcat-col_pos = 13.
ls_fieldcat-seltext_s = 'Max.Bus.CL.occupied'.
ls_fieldcat-seltext_l = 'Max.Bus.CL.occupied'.
append ls_fieldcat to l_fieldcat.
clear ls_fieldcat.


ENDFORM. " initialize_fieldcat
*&---------------------------------------------------------------------*
*& Form read_flight_info
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM read_flight_info .

refresh lt_sflight.
clear lt_sflight.

**-- Read data from SFLIGHT table
select *
from SFLIGHT
into table lt_sflight
where carrid in s_carrid
and connid in s_connid
and fldate in s_fldate.
if sy-subrc <> 0.
message e208(00) with text-101.
endif.

ENDFORM. " read_flight_info
*&---------------------------------------------------------------------*
*& Form dislay_alv_report
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM dislay_alv_report .

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
* I_INTERFACE_CHECK = ' '
* I_BYPASSING_BUFFER =
* I_BUFFER_ACTIVE = ' '
I_CALLBACK_PROGRAM = g_repid
* I_CALLBACK_PF_STATUS_SET = ' '
* I_CALLBACK_USER_COMMAND = ' '
I_STRUCTURE_NAME = 'sflight'
* IS_LAYOUT =
IT_FIELDCAT = gt_fieldcat
* IT_EXCLUDING =
* IT_SPECIAL_GROUPS =
* IT_SORT =
* IT_FILTER =
* IS_SEL_HIDE =
I_DEFAULT = 'X'
I_SAVE = 'A'
IS_VARIANT = GX_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
* IMPORTING
* E_EXIT_CAUSED_BY_CALLER =
* ES_EXIT_CAUSED_BY_USER =
TABLES
T_OUTTAB = lt_sflight
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. " dislay_alv_report
*&---------------------------------------------------------------------*
*& Form initialize_variant
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM initialize_variant .
g_save = 'A'.
clear g_variant.
g_variant-report = g_repid.
gx_variant = g_variant.
call function 'REUSE_ALV_VARIANT_DEFAULT_GET'
exporting
i_save = g_save
changing
cs_variant = gx_variant
exceptions
not_found = 2.
if sy-subrc = 0.
p_vari = gx_variant-variant.
endif.

ENDFORM. " initialize_variant

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