05-16-2007 4:50 AM
Hi All,
I have a need to display two different reports for the same set of data selections, (Successful data and Error Data) in a Single ALV Layout using a Application tool bar Button. Does anyone have a sample code for this kind of requirement. Preferably using Objects.
Also, how can we check if an object is already created? In other words, how to check for a null reference?
Thanks in advance.
Jr.
05-16-2007 4:57 AM
Hi,
go for OOalv.create one screen and draw sub screen area in that.create two sub screens also.create containers on each sub screen and display the alv on those screens.maintain one variable to switch between the two alv s. when the application tool bar button is pressed change the variable status.
check the program BCALV_EDIT_O5 for help on OO alv.
<b>award if helpful.</b>
rgds,
bharat.
05-16-2007 4:57 AM
Hi,
go for OOalv.create one screen and draw sub screen area in that.create two sub screens also.create containers on each sub screen and display the alv on those screens.maintain one variable to switch between the two alv s. when the application tool bar button is pressed change the variable status.
check the program BCALV_EDIT_O5 for help on OO alv.
<b>award if helpful.</b>
rgds,
bharat.
05-16-2007 5:25 AM
Sample code for split alv using OOABAP.
this would help you in ur requirement.
go through this program where the screen is divided in two for two alv in different containers.
.
DATA: save_ok LIKE sy-ucomm,
g_container TYPE scrfname VALUE 'CC1',
g_grid TYPE REF TO cl_gui_alv_grid,
g_custom_container TYPE REF TO cl_gui_custom_container,
gt_fieldcat TYPE lvc_t_fcat,
g_max TYPE i VALUE 100.
declarations for top of page event
Data: gv_c_split type ref to cl_gui_splitter_container,
gv_c_ptv type ref to cl_gui_container,
gv_alv_ptv type ref to cl_gui_alv_grid,
o_dd_doc TYPE REF TO cl_dd_document,
text TYPE sdydo_text_element,
o_split type ref to cl_gui_easy_splitter_container,
o_top type ref to cl_gui_container,
o_bot type ref to cl_gui_container,
gv_c_vp type ref to cl_gui_container.
end of declaration for top of page.
CLASS lcl_event_receiver DEFINITION DEFERRED.
*class lcl_application_dc definition deferred.
DATA: o_event_receiver TYPE REF TO lcl_event_receiver.
g_dc type ref to lcl_application_dc.
DATA: gt_outtab TYPE TABLE OF sbook.
*----
*
CLASS lcl_event_receiver DEFINITION
*----
*
*
*----
*
CLASS lcl_event_receiver DEFINITION.
PUBLIC SECTION.
METHODS: handle_f4 FOR EVENT onf4 OF cl_gui_alv_grid
IMPORTING e_fieldname
es_row_no
er_event_data
et_bad_cells
e_display,
handle_top_of_page FOR EVENT top_of_page OF cl_gui_alv_grid
IMPORTING e_dyndoc_id.
METHODS: reset.
METHODS: show_f4.
PRIVATE SECTION.
**
attributes for creating an own F4-Help
(using a second ALV Grid Control
**
DATA: f4_grid TYPE REF TO cl_gui_alv_grid,
f4_custom_container TYPE REF TO cl_gui_custom_container.
TYPES: BEGIN OF ty_f4.
TYPES: value TYPE s_class.
TYPES: descr(20) TYPE c.
TYPES: END OF ty_f4.
DATA: f4_itab TYPE TABLE OF ty_f4.
DATA: f4_fieldcatalog TYPE lvc_t_fcat.
**
attributes to store event parameters
(after the CALL SCREEN command, the event parameters
are not accessible)
**
TYPES: BEGIN OF onf4_event_parameters_type.
TYPES: c_fieldname TYPE lvc_fname.
TYPES: cs_row_no TYPE lvc_s_roid.
TYPES: cr_event_data TYPE REF TO cl_alv_event_data.
TYPES: ct_bad_cells TYPE lvc_t_modi.
TYPES: c_display TYPE char01.
TYPES: END OF onf4_event_parameters_type.
DATA: f4_params TYPE onf4_event_parameters_type.
**
Methods to create own F4-Help
(This is done using a second ALV Grid Control)
**
METHODS: init_f4.
METHODS: build_fieldcatalog.
METHODS: fill_f4_itab .
METHODS: on_double_click FOR EVENT double_click OF cl_gui_alv_grid
IMPORTING es_row_no.
ENDCLASS. "lcl_application_f4 DEFINITION
*----
*
CLASS lcl_event_receiver IMPLEMENTATION
*----
*
*
*----
*
CLASS lcl_event_receiver IMPLEMENTATION.
*§2. Implement an event handler method for event ONF4.
METHOD handle_f4.
Save event parameter as global attributes of this class
(maybe solved differently if you use a function module!)
f4_params-c_fieldname = e_fieldname.
f4_params-cs_row_no = es_row_no.
f4_params-cr_event_data = er_event_data.
f4_params-ct_bad_cells = et_bad_cells.
f4_params-c_display = e_display.
*§3. Call your own f4 help. To customize your popup check
first if the cell is ready for input (event parameter E_DISPLAY).
(parameter E_DISPLAY is checked later in method on_double_click)
(Probably, you would call a function module at this point,
pass the needed event parameter and call the popup screen
within that function module. This is not done in this example
to avoid scattering its code).
CALL SCREEN 101 STARTING AT 10 10.
*§7. Inform the ALV Grid Control that an own f4 help has been processed
to suppress the standard f4 help.
er_event_data->m_event_handled = 'X'.
ENDMETHOD. "on_f4
*----
-
METHOD show_f4.
DATA: ls_outtab TYPE sbook.
initialize own f4 help if needed
IF f4_custom_container IS INITIAL.
CALL METHOD init_f4.
ENDIF.
CALL METHOD fill_f4_itab.
refresh list of values in f4 help and show it
CALL METHOD f4_grid->refresh_table_display.
CAUTION: Do not use method REFRESH_TABLE_DISPLAY for
your editable ALV Grid instances while handling events
DATA_CHANGED or ONf4. You would overwrite intermediate
values of your output table on frontend.
'f4_grid' is a non-editable ALV Grid Control for the
application specific F4-Help. Therefore, calling
REFRESH_TABLE_DISPLAY for this instance has no
negative effect.
CALL METHOD cl_gui_cfw=>flush.
ENDMETHOD. "show_f4
*----
-
METHOD init_f4.
DATA: ls_f4_layout TYPE lvc_s_layo.
build fieldcatalog entries for f4
CALL METHOD build_fieldcatalog.
create controls
CREATE OBJECT f4_custom_container
EXPORTING container_name = 'CC_ONF4'.
CREATE OBJECT f4_grid
EXPORTING i_parent = f4_custom_container.
hide toolbar
ls_f4_layout-no_toolbar = 'X'.
CALL METHOD f4_grid->set_table_for_first_display
EXPORTING
is_layout = ls_f4_layout
CHANGING
it_fieldcatalog = f4_fieldcatalog
it_outtab = f4_itab.
register event double click on backend
SET HANDLER me->on_double_click FOR f4_grid.
flush since 'ls_layout' is local!
CALL METHOD cl_gui_cfw=>flush.
ENDMETHOD. "init_f4
*----
-
METHOD fill_f4_itab.
DATA ls_f4_itab TYPE ty_f4.
Delete all entries in f4_itab to determine
offered values dynamically
CLEAR f4_itab[].
ls_f4_itab-value = 'C'.
ls_f4_itab-descr = text-t03. "Business Class
APPEND ls_f4_itab TO f4_itab.
ls_f4_itab-value = 'Y'.
ls_f4_itab-descr = text-t04. "Economie Class
APPEND ls_f4_itab TO f4_itab.
ls_f4_itab-value = 'F'.
ls_f4_itab-descr = text-t05. "First Class
APPEND ls_f4_itab TO f4_itab.
ENDMETHOD. "fill_f4_itab
*----
-
METHOD build_fieldcatalog.
DATA: ls_fcat TYPE lvc_s_fcat.
CLEAR ls_fcat.
ls_fcat-fieldname = 'VALUE'.
ls_fcat-coltext = text-t02.
ls_fcat-inttype = 'S_CLASS'.
ls_fcat-outputlen = 5.
APPEND ls_fcat TO f4_fieldcatalog.
CLEAR ls_fcat.
ls_fcat-fieldname = 'DESCR'.
ls_fcat-coltext = text-t01.
ls_fcat-inttype = 'C'.
ls_fcat-outputlen = 20.
APPEND ls_fcat TO f4_fieldcatalog.
ENDMETHOD. "build_fieldcatalog
*----
-
METHOD on_double_click.
*§5. If not already caught by your own f4 help, check whether
the triggered cell was ready for input by using E_DISPLAY
and if not, exit.
IF f4_params-c_display EQ 'X'.
LEAVE SCREEN.
ENDIF.
*§6. After the user selected a value, pass it to the ALV Grid Control:
*§ 6a. Define a field symbol of type: LVC_T_MODI and a structure of
type LVC_S_MODI to pass the value later on.
FIELD-SYMBOLS TYPE lvc_t_modi.
DATA: ls_modi TYPE lvc_s_modi,
ls_f4_itab TYPE ty_f4.
*§ 6b. Dereference attribute M_DATA into your field symbol and add
the selected value to the table to which this symbol points to.
ASSIGN f4_params-cr_event_data->m_data->* TO .
LEAVE TO SCREEN 0.
ENDMETHOD. "on_double_click
*----
-
METHOD reset.
FIELD-SYMBOLS display_document
EXPORTING parent = o_top.
ENDMETHOD. "handle_top_of_page
ENDCLASS. "lcl_application_f4 IMPLEMENTATION
END-OF-SELECTION.
CALL SCREEN 100.
*----
*
MODULE PBO OUTPUT *
*----
*
MODULE pbo OUTPUT.
SET PF-STATUS 'MAIN100'.
SET TITLEBAR 'MAIN100'.
IF g_custom_container IS INITIAL.
PERFORM create_and_init_alv CHANGING gt_outtab[]
gt_fieldcat.
ENDIF.
ENDMODULE. "pbo OUTPUT
*----
*
MODULE PAI INPUT *
*----
*
MODULE pai INPUT.
save_ok = sy-ucomm.
CLEAR sy-ucomm.
CASE save_ok.
WHEN 'EXIT' OR 'BACK' OR 'CANCEL'.
PERFORM exit_program.
WHEN 'SWITCH'.
PERFORM switch_edit_mode.
WHEN OTHERS.
do nothing
ENDCASE.
ENDMODULE. "pai INPUT
*----
*
FORM EXIT_PROGRAM *
*----
*
FORM exit_program.
LEAVE PROGRAM.
ENDFORM. "exit_program
*&----
*
*& Form build_fieldcat
*&----
*
text
*----
*
-->PT_FIELDCAT text
*----
*
FORM build_fieldcat CHANGING pt_fieldcat TYPE lvc_t_fcat.
DATA ls_fcat TYPE lvc_s_fcat.
CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
EXPORTING
i_structure_name = 'SBOOK'
CHANGING
ct_fieldcat = pt_fieldcat.
LOOP AT pt_fieldcat INTO ls_fcat.
Exchange smoker field with invoice field - just to
make the dependance between SMOKER and CLASS more transparent
(Smoking is only allowed in the first class).
IF ls_fcat-fieldname EQ 'SMOKER'.
ls_fcat-col_pos = 11.
ls_fcat-outputlen = 10.
ls_fcat-edit = 'X'.
Field 'checktable' is set to avoid shortdumps that are caused
by inconsistend data in check tables. You may comment this out
when the test data of the flight model is consistent in your system.
ls_fcat-checktable = '!'. "do not check foreign keys
MODIFY pt_fieldcat FROM ls_fcat.
ELSEIF ls_fcat-fieldname EQ 'INVOICE'.
ls_fcat-col_pos = 7.
MODIFY pt_fieldcat FROM ls_fcat.
ELSEIF ls_fcat-fieldname EQ 'CLASS'.
ls_fcat-edit = 'X'.
ls_fcat-outputlen = 5.
ls_fcat-checktable = '!'. "do not check foreign keys
MODIFY pt_fieldcat FROM ls_fcat.
ENDIF.
ENDLOOP.
ENDFORM. "build_fieldcat
*&----
*
*& Form create_and_init_alv
*&----
*
text
*----
*
-->PT_OUTTAB text
-->PT_FIELDCAT text
*----
*
FORM create_and_init_alv CHANGING pt_outtab TYPE STANDARD TABLE
pt_fieldcat TYPE lvc_t_fcat.
DATA: lt_exclude TYPE ui_functions,
ls_layout TYPE lvc_s_layo.
CREATE OBJECT g_custom_container
EXPORTING container_name = g_container.
CREATE OBJECT g_grid
EXPORTING i_parent = g_custom_container.
CREATE OBJECT gv_c_split
EXPORTING
link_dynnr = lv_dynnr
link_repid = lv_repid
parent = g_custom_container
rows = 2
columns = 1
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
others = 3 .
CALL METHOD gv_c_split->set_border
EXPORTING
border = space.
CALL METHOD gv_c_split->get_container
EXPORTING
row = 1
column = 1
RECEIVING
container = gv_c_ptv.
CALL METHOD gv_c_split->set_row_height
EXPORTING
id = 1
height = 20
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
OTHERS = 6 .
CALL METHOD gv_c_split->get_container
EXPORTING
row = 2
column = 1
RECEIVING
container = gv_c_vp .
CALL METHOD gv_c_split->set_row_height
EXPORTING
id = 2
height = 10
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
OTHERS = 3 .
CREATE OBJECT o_split
EXPORTING
parent = gv_c_ptv
with_border = 1
EXCEPTIONS
cntl_error = 1
cntl_system_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.
o_top = o_split->top_left_container.
o_bot = o_split->bottom_right_container.
CREATE OBJECT gv_alv_ptv
EXPORTING
i_parent = o_bot
EXCEPTIONS
error_cntl_create = 1
error_cntl_init = 2
error_cntl_link = 3
error_dp_create = 4
others = 5 .
CREATE OBJECT g_grid
EXPORTING
i_parent = gv_c_vp
EXCEPTIONS
error_cntl_create = 1
error_cntl_init = 2
error_cntl_link = 3
error_dp_create = 4
others = 5 .
PERFORM build_fieldcat CHANGING pt_fieldcat.
Optionally restrict generic functions to 'change only'.
(The user shall not be able to add new lines).
PERFORM exclude_tb_functions CHANGING lt_exclude.
PERFORM build_data CHANGING pt_outtab.
ls_layout-grid_title = 'F4 help implemented for field CLASS'.
CREATE OBJECT o_event_receiver.
SET HANDLER o_event_receiver->handle_top_of_page FOR gv_alv_ptv.
SET HANDLER o_event_receiver->handle_top_of_page FOR g_grid.
CREATE OBJECT o_dd_doc EXPORTING style = 'ALV_GRID'
no_margins = 'X'.
CALL METHOD gv_alv_ptv->set_table_for_first_display
EXPORTING
is_layout = ls_layout
CHANGING
it_outtab = pt_outtab[]
it_fieldcatalog = pt_fieldcat
EXCEPTIONS
invalid_parameter_combination = 1
program_error = 2
too_many_lines = 3
OTHERS = 4.
CALL METHOD g_grid->set_table_for_first_display
EXPORTING
it_toolbar_excluding = lt_exclude
is_layout = ls_layout
CHANGING
it_fieldcatalog = pt_fieldcat
it_outtab = pt_outtab[].
CALL METHOD gv_alv_ptv->list_processing_events
EXPORTING
i_event_name = 'TOP_OF_PAGE'
i_dyndoc_id = o_dd_doc.
register f4 for field CLASS
PERFORM register_events.
Set editable cells to ready for input initially
CALL METHOD g_grid->set_ready_for_input
EXPORTING
i_ready_for_input = 1.
ENDFORM. "CREATE_AND_INIT_ALV
*&----
*
*& Form exclude_tb_functions
*&----
*
text
*----
*
-->PT_EXCLUDE text
*----
*
FORM exclude_tb_functions CHANGING pt_exclude TYPE ui_functions.
Only allow to change data not to create new entries (exclude
generic functions).
DATA ls_exclude TYPE ui_func.
ls_exclude = cl_gui_alv_grid=>mc_fc_loc_copy_row.
APPEND ls_exclude TO pt_exclude.
ls_exclude = cl_gui_alv_grid=>mc_fc_loc_delete_row.
APPEND ls_exclude TO pt_exclude.
ls_exclude = cl_gui_alv_grid=>mc_fc_loc_append_row.
APPEND ls_exclude TO pt_exclude.
ls_exclude = cl_gui_alv_grid=>mc_fc_loc_insert_row.
APPEND ls_exclude TO pt_exclude.
ls_exclude = cl_gui_alv_grid=>mc_fc_loc_move_row.
APPEND ls_exclude TO pt_exclude.
ENDFORM. " EXCLUDE_TB_FUNCTIONS
*&----
*
*& Form build_data
*&----
*
text
*----
*
--> p1 text
<-- p2 text
*----
*
FORM build_data CHANGING pt_outtab TYPE STANDARD TABLE.
DATA: ls_sbook TYPE sbook,
l_index TYPE i.
SELECT * FROM sbook INTO TABLE gt_outtab UP TO g_max ROWS.
IF sy-subrc NE 0.
PERFORM generate_entries CHANGING pt_outtab.
ENDIF.
LOOP AT pt_outtab INTO ls_sbook.
l_index = sy-tabix.
CLEAR ls_sbook-class.
Alternate between smoker and non smoker to make
it more obvious what this example is about
l_index = l_index MOD 2.
IF l_index EQ 1.
ls_sbook-smoker = 'X'.
ELSE.
ls_sbook-smoker = ' '.
ENDIF.
MODIFY pt_outtab FROM ls_sbook.
ENDLOOP.
ENDFORM. " build_data
*&----
*
*& Form generate_entries
*&----
*
text
*----
*
-->PT_SBOOK text
*----
*
FORM generate_entries CHANGING pt_sbook TYPE STANDARD TABLE.
DATA: ls_sbook TYPE sbook,
l_month(2) TYPE c,
l_day(2) TYPE c,
l_date(8) TYPE c,
l_prebookid TYPE i.
ls_sbook-carrid = 'LH'.
ls_sbook-connid = '0400'.
ls_sbook-forcurkey = 'DEM'.
ls_sbook-loccurkey = 'USD'.
ls_sbook-custtype = 'B'.
DO 110 TIMES.
l_prebookid = sy-index.
ls_sbook-forcuram = sy-index * 10.
ls_sbook-loccuram = ls_sbook-loccuram * 2.
ls_sbook-customid = sy-index.
ls_sbook-counter = 18.
ls_sbook-agencynum = 11.
l_month = sy-index / 10 + 1.
DO 2 TIMES.
l_day = 3 + l_month + sy-index * 2.
l_date+0(4) = '2000'.
l_date+4(2) = l_month.
l_date+6(2) = l_day.
ls_sbook-fldate = l_date.
SUBTRACT 3 FROM l_day.
ls_sbook-order_date+0(6) = l_date+0(6).
ls_sbook-order_date+6(2) = l_day.
ls_sbook-bookid = l_prebookid * 2 + sy-index.
IF sy-index EQ 1.
ls_sbook-smoker = 'X'.
ELSE.
ls_sbook-smoker = space.
ENDIF.
ls_sbook-luggweight = l_prebookid * 10.
IF ls_sbook-luggweight GE 1000.
ls_sbook-wunit = 'G'.
ls_sbook-class = 'C'.
ELSE.
ls_sbook-wunit = 'KG'.
ls_sbook-class = 'Y'.
ENDIF.
IF ls_sbook-bookid > 40 AND ls_sbook-wunit EQ 'KG'.
ls_sbook-invoice = 'X'.
ENDIF.
IF ls_sbook-bookid EQ 2.
ls_sbook-cancelled = 'X'.
ls_sbook-class = 'F'.
ENDIF.
APPEND ls_sbook TO pt_sbook.
ENDDO.
ENDDO.
ENDFORM. " generate_entries
*&----
*
*& Form register_events
*&----
*
text
*----
*
FORM register_events.
*§1. Register event ONF4 at frontend using method
register_f4_for_fields. For this purpose, you pass a table
with all fields, for which you want to implement your own
f4 help.
remark: If you want to use an own f4 help for fields where
no standard f4 help exists set field F4AVAILABL for
this field in the fieldcatalog.
DATA: lt_f4 TYPE lvc_t_f4 WITH HEADER LINE.
CLEAR lt_f4.
lt_f4-fieldname = 'CLASS'.
If you would like to deregister the field again,
pass value SPACE with field 'register'.
lt_f4-register = 'X'.
*§ 1b. If the value range in your f4 help depends on other
values of cells that are input enabled, set the
GETBEFORE parameter.
The consequence is that the ALV Grid Control raises
event DATA_CHANGED before the f4 help is called to
check values that the f4 help depends on.
lt_f4-getbefore = 'X'.
The next parameter is used to change values after onf4 has
been processed. The ALV Grid Control will raise
event DATA_CHANGED afterwards, if you set it.
lt_f4-chngeafter = space.
INSERT TABLE lt_f4.
CALL METHOD g_grid->register_f4_for_fields
EXPORTING
it_f4 = lt_f4[].
register events for abap objects (backend)
SET HANDLER o_event_receiver->handle_f4 FOR g_grid.
ENDFORM. " register_events
*----
*
MODULE status_0101 OUTPUT
*----
*
*
*----
*
MODULE status_0101 OUTPUT.
SET PF-STATUS 'POPUP'.
SET TITLEBAR 'POPUP'.
CALL METHOD o_event_receiver->show_f4.
ENDMODULE. " STATUS_0101 OUTPUT
*&----
*
*& Module USER_COMMAND_0101 INPUT
*&----
*
text
*----
*
MODULE user_command_0101 INPUT.
PERFORM user_command.
ENDMODULE. " USER_COMMAND_0101 INPUT
*&----
*
*& Form user_command
*&----
*
text
*----
*
FORM user_command.
DATA: save_ok TYPE sy-ucomm.
save_ok = sy-ucomm.
CLEAR sy-ucomm.
CASE save_ok.
WHEN 'CANCEL'.
CALL METHOD o_event_receiver->reset.
LEAVE TO SCREEN 0.
ENDCASE.
ENDFORM. "user_command
*&----
*
*& Form switch_edit_mode
*&----
*
text
*----
*
FORM switch_edit_mode.
IF g_grid->is_ready_for_input( ) EQ 0.
set edit enabled cells ready for input
CALL METHOD g_grid->set_ready_for_input
EXPORTING
i_ready_for_input = 1.
ELSE.
lock edit enabled cells against input
CALL METHOD g_grid->set_ready_for_input
EXPORTING
i_ready_for_input = 0.
ENDIF.
ENDFORM. "switch_edit_mode