PROBLEM IN ALVGRID
Hi ihave a problem in alv grid i want display the longtext which was very long in characters it contains of more than 20 lines as shown below now i want the output the <b>material number and shorttext description only one time</b> but not as many times as there are lines in the long text that is i want to delete the remaining short text and material number for a single material number.
I'm posting here my ALv grid code also pla consider it and give me solution
FORM field_catalog.
***MATERIAL NO no
int_cat-tabname = 'INT_OUT'.
int_cat-fieldname = 'MATNR'.
int_cat-reptext_ddic = 'MATERIAL NO'.
APPEND int_cat .
*vender name
int_cat-tabname = 'INT_OUT'.
int_cat-fieldname = 'MAKTX'.
int_cat-reptext_ddic = 'MATERIAL SHORT DESCRIPTION'.
APPEND int_cat .
PO No
int_cat-tabname = 'INT_OUT'.
int_cat-fieldname = 'TDLINE'.
int_cat-reptext_ddic = 'MATERIAL LONG DESCRIPTION'.
int_cat-outputlen = '100'.
APPEND int_cat .
endform.
*& Form display_data
text
FORM display_data.
DATA : X_SORT TYPE SLIS_SORTINFO_ALV.
DATA: IT_SORT TYPE SLIS_T_SORTINFO_ALV.
X_SORT-SPOS = '1'.
X_SORT-FIELDNAME = 'MATNR'.
X_SORT-TABNAME = 'INT_OUT'.
X_SORT-UP = 'X'.
APPEND X_SORT TO IT_SORT.
CLEAR X_SORT.
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
it_fieldcat = int_cat[]
I_CALLBACK_PF_STATUS_SET = 'SET_PF_STATUS'
I_CALLBACK_USER_COMMAND = 'USER_COMMAND'
IS_LAYOUT = X_LAYOUT
IT_FIELDCAT = IT_FIELDCAT
IT_EVENTS = IT_EVENT
IT_SORT = INT_OUT
TABLES
t_outtab = int_out
EXCEPTIONS
program_error = 1
OTHERS = 2.
ENDFORM. "display_data
1000100000 Test material 1 1. DataSet vs DataReader
1000100000 Test material 1 # DataReader
1000100000 Test material 1 # Object to access data in a connected, forward-only, read-only
1000100000 Test material 1 fashion
1000100000 Test material 1
1000100000 Test material 1 # DataSet
1000100000 Test material 1 # Data structure to store schema and data in a disconnected fashion
1000100000 Test material 1 # Useful for editing data offline and later update to data source
1000100000 Test material 1
1000100000 Test material 1 2. What is Microsoft .NET?
1000100000 Test material 1 .NET represents an advanced new generation of software that will
1000100000 Test material 1 drive the Next Generation Internet. Its purpose is to make information
1000100000 Test material 1 available any time, any place, and on any device.
1000100000 Test material 1 Quick Definition
1000100000 Test material 1 .NET is an initiative to integrate all Microsoft products with
1000100000 Test material 1 the #Next Generation# web.
1000100000 Test material 1
1000100000 Test material 1 3. Recordset
1000100000 Test material 1
1000100000 Test material 1 ? Recordsets are generated one per table. This does not support
1000100000 Test material 1 hierarchical structure of data access. It will be programmer#s
1000100000 Test material 1 responsibility to define relationships among different recordsets.
1000100000 Test material 1 ? Rercordsets can not support data accessing from multiple sources.
1000100000 Test material 1
1000100000 Test material 1
1000100000 Test material 1 4. Connection-oriented Vs Connection-less
1000100000 Test material 1 ? Connection-oriented
1000100000 Test material 1 # Keeps the connection to the data base alive
1000100000 Test material 1 # Intended for applications with:
1000100000 Test material 1 ? short running transactions
1000100000 Test material 1 ? only a few parallel accesses
1000100000 Test material 1 ? up-to-date data
1000100000 Test material 1
1000100000 Test material 1 ? Connectionless
*& Report ZREADTEXTTEST *
REPORT ZREADTEXTTEST .
tables: ekpo,MAKT.
TYPE-POOLS: slis.
DATA: thread LIKE thead.
data: P_MATNR1(15) type N.
DATA: BEGIN OF INT_MAKT OCCURS 0,
MATNR LIKE MAKT-MATNR,
MAKTX LIKE MAKT-MAKTX,
WERKS LIKE EKPO-WERKS,
END OF INT_MAKT.
DATA: BEGIN OF INT_EKPO OCCURS 0,
MATNR LIKE EKPO-MATNR,
WERKS LIKE EKPO-WERKS,
END OF INT_EKPO.
DATA: BEGIN OF INT_OUT OCCURS 0,
MATNR LIKE EKPO-MATNR,
MAKTX LIKE MAKT-MAKTX,
TDLINE LIKE TLINE-TDLINE,
END OF INT_OUT.
DATA: it_tlines LIKE tline OCCURS 10 WITH HEADER LINE.
****ALV list definintion
DATA: ws_cat TYPE slis_fieldcat_alv ,
int_cat TYPE slis_t_fieldcat_alv WITH HEADER LINE.
DATA: g_container TYPE scrfname VALUE 'BCALV_GRID_DEMO_0100_CONT1',
g_custom_container TYPE REF TO cl_gui_custom_container.
*selection-screen
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME TITLE text-001.
SELECTION-SCREEN SKIP 2.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 25(20) text-001.
SELECT-OPTIONS: S_MATNR FOR MAKT-MATNR obligatory.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 25(20) text-002.
*PARAMETERS:p_ebeln LIKE ekko-ebeln obligatory.
SELECT-OPTIONS: S_WERKS FOR EKPO-WERKS OBLIGATORY.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN END OF BLOCK b1.
START-OF-SELECTION.
PERFORM get_data.
PERFORM field_catalog.
PERFORM display_data.
END-OF-SELECTION.
FORM GET_DATA.
SELECT * FROM EKPO
INTO CORRESPONDING FIELDS OF TABLE
INT_EKPO
WHERE
EKPO~MATNR IN S_MATNR AND
EKPO~WERKS IN S_WERKS.
sort int_ekpo by werks.
delete adjacent duplicates from INT_EKPO .
SELECT MATNR MAKTX FROM MAKT
INTO CORRESPONDING FIELDS OF TABLE
INT_MAKT
FOR ALL ENTRIES IN INT_EKPO
WHERE MAKT~MATNR = INT_EKPO-MATNR.
loop at int_ekpo.
read table int_MAKT with key matnr = INT_EKPO-MATNR.
int_OUT-MATNR = INT_EKPO-MATNR.
INT_OUT-MAKTX = INT_MAKT-MAKTX.
ENDLOOP.
ENDIF.
**ENDIF.
**" Read text
*LOOP AT INT_EKPO.
thread-tdname = INT_EKPO-MATNR.
thread-tdid = 'BEST'.
thread-tdobject = 'MATERIAL'.
CALL FUNCTION 'READ_TEXT'
EXPORTING
CLIENT = SY-MANDT
ID = thread-tdid
LANGUAGE = sy-langu
NAME = thread-tdname
OBJECT = thread-tdobject
ARCHIVE_HANDLE = 0
LOCAL_CAT = ' '
IMPORTING
HEADER =
TABLES
LINES = it_tlines
loop at it_tlines.
IF INT_OUT-MATNR IS INITIAL.
CLEAR INT_OUT-MATNR .
ENDIF.
read table int_MAKT with key matnr = INT_EKPO-MATNR.
int_OUT-MATNR = INT_EKPO-MATNR.
INT_OUT-MAKTX = INT_MAKT-MAKTX.
int_OUT-MAKTX = int_EKPO-WERKS.
int_OUT-TDLINE = it_tlines-tdline.
APPEND INT_OUT.
endloop.
ENDFORM.
FORM field_catalog.
***MATERIAL NO no
int_cat-tabname = 'INT_OUT'.
int_cat-fieldname = 'MATNR'.
int_cat-reptext_ddic = 'MATERIAL NO'.
APPEND int_cat .
*material Short Description
int_cat-tabname = 'INT_OUT'.
int_cat-fieldname = 'MAKTX'.
int_cat-reptext_ddic = 'MATERIAL SHORT DESCRIPTION'.
APPEND int_cat .
Material Long Description
int_cat-tabname = 'INT_OUT'.
int_cat-fieldname = 'TDLINE'.
int_cat-reptext_ddic = 'MATERIAL LONG DESCRIPTION'.
int_cat-datatype = 'CHAR'.
int_cat-outputlen = '100'.
APPEND int_cat .
endform.
*& Form display_data
text
FORM display_data.
data: new(15) TYPE N.
*SORT int_out.
LOOP AT int_out.
CLEAR new.
AT NEW MATNR.
new = INT_OUT-MATNR.
ENDAT.
IF new = INT_OUT-MATNR.
CLEAR int_out-matnr.
clear int_out-maktx.
MODIFY int_out TRANSPORTING matnr maktx.
endif.
ENDLOOP.
*Loop at INT_OUT .
*if int_out-matnr = ' ' .
*data: temp like makt-matnr.
At new matnr.
*Temp = int_out-matnr.
*If int_out-matnr = temp.
clear int_out-matnr .
*Endif.
*Continue.
*Endat.
*endif.
*endloop.
*DATA : WTAB LIKE INT_OUT,
FLAG.
*LOOP AT INT_OUT.
*AT NEW MATNR.
*CLEAR FLAG .
*ENDAT.
*IF FLAG = 'X'.
*INT_OUT-MATNR = ''.
*INT_OUT-MAKTX = ''.
*clear int_out-matnr.
*MODIFY INT_OUT.
*ENDIF.
*FLAG = 'X'.
*ENDLOOP.
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
it_fieldcat = int_cat[]
IT_SORT = IT_SORT
I_CALLBACK_PF_STATUS_SET = 'SET_PF_STATUS'
I_CALLBACK_USER_COMMAND = 'USER_COMMAND'
IS_LAYOUT = X_LAYOUT
IT_FIELDCAT = IT_FIELDCAT
IT_EVENTS = IT_EVENT
IT_SORT = INT_OUT
TABLES
t_outtab = int_out
EXCEPTIONS
program_error = 1
OTHERS = 2.
ENDFORM. "display_data
Similar Messages
-
Problem in handling double click in the second alv grid control
Hi all,
I have a screen. In the screen , I have 2 custom container and each custom container has 1 alv grid control.
I need to handle double click event for both of alv grid controls in my screen.
I defined 2 local event handler class for each alv grid and defined 2 handle_double_click event.
In the first Alv grid double click works fine , everything is ok, world is peaceful.
But in the second alvgrid, the row parameters (E_ROW, E_COLUMN, ES_ROW_NO) comes initial so i cannot handle it.
All i need is to call a different transaction (displaying the equipment-IE03) when user double-click on a field in the second alv grid control. I tried to use hotspot_click event too but it does'nt give the row id either.
I read some posts in the forms ([Double click event of alv grid control|Double click event of alv grid control]).
I tried everything but nothing works.
Please help. Your answers will be appreciated.Hello Eagle
I am not sure where the problem lies in your case but sample report ZUS_SDN_THREE_ALV_GRIDS_01 shows that you can always find out the current cell after the double-click event (in any case you have the current cell already as IMPORTING parameters of the event):
*& Report ZUS_SDN_THREE_ALV_GRIDS_01
*& Flow logic of screen '0100' (no screen elements, ok-code => GD_OKCODE):
** PROCESS BEFORE OUTPUT.
** MODULE STATUS_0100.
** PROCESS AFTER INPUT.
** MODULE USER_COMMAND_0100.
*& Thread: problem in handling double click in the second alv grid control
*& <a class="jive_macro jive_macro_thread" href="" __jive_macro_name="thread" modifiedtitle="true" __default_attr="1172052"></a>
REPORT zus_sdn_three_alv_grids_01.
DATA:
gd_okcode TYPE ui_func,
gd_repid TYPE syst-repid,
go_docking TYPE REF TO cl_gui_docking_container,
go_splitter TYPE REF TO cl_gui_splitter_container,
go_splitter_2 TYPE REF TO cl_gui_splitter_container,
go_cell_top TYPE REF TO cl_gui_container,
go_cell_bottom TYPE REF TO cl_gui_container,
go_cell_left TYPE REF TO cl_gui_container,
go_cell_right TYPE REF TO cl_gui_container,
go_grid1 TYPE REF TO cl_gui_alv_grid,
go_grid2 TYPE REF TO cl_gui_alv_grid,
go_grid3 TYPE REF TO cl_gui_alv_grid.
DATA:
gt_outtab TYPE STANDARD TABLE OF vbak,
gt_outtab_2 TYPE STANDARD TABLE OF vbap,
gt_outtab_3 TYPE STANDARD TABLE OF vbep.
**PARAMETERS:
** p_bukrs TYPE bukrs DEFAULT '1000'.
* CLASS lcl_eventhandler DEFINITION
CLASS lcl_eventhandler DEFINITION.
PUBLIC SECTION.
CLASS-DATA:
ms_row TYPE lvc_s_row,
ms_col TYPE lvc_s_col.
CLASS-METHODS:
handle_double_click FOR EVENT double_click OF cl_gui_alv_grid
IMPORTING
e_row
e_column
es_row_no
sender.
ENDCLASS. "lcl_eventhandler DEFINITION
* CLASS lcl_eventhandler IMPLEMENTATION
CLASS lcl_eventhandler IMPLEMENTATION.
METHOD handle_double_click.
* define local data
DATA:
ls_outtab TYPE vbak,
ls_outtab_2 TYPE vbap,
ls_outtab_3 TYPE vbep.
" Initialize class data
CLEAR: ms_row,
ms_col.
CASE sender.
WHEN go_grid1.
ms_row = e_row.
ms_col = e_column.
* Triggers PAI of the dynpro with the specified ok-code
CALL METHOD cl_gui_cfw=>set_new_ok_code
EXPORTING
new_code = 'GET_ITEMS'
* IMPORTING
* rc =
WHEN go_grid2.
ms_row = e_row.
ms_col = e_column.
* Triggers PAI of the dynpro with the specified ok-code
CALL METHOD cl_gui_cfw=>set_new_ok_code
EXPORTING
new_code = 'GET_SCHEDULE_LINES'
* IMPORTING
* rc =
WHEN go_grid3.
** READ TABLE gt_vbap INTO ls_vbap INDEX e_row-index.
** CHECK ( ls_vbap-matnr IS NOT INITIAL ).
** SET PARAMETER ID 'MAT' FIELD ls_vbap-matnr.
** CALL TRANSACTION 'MM02' AND SKIP FIRST SCREEN.
WHEN OTHERS.
RETURN.
ENDCASE.
ENDMETHOD. "handle_double_click
ENDCLASS. "lcl_eventhandler IMPLEMENTATION
START-OF-SELECTION.
SELECT * FROM vbak INTO TABLE gt_outtab UP TO 100 ROWS.
PERFORM init_controls.
* Display data
CALL METHOD go_grid1->set_table_for_first_display
EXPORTING
i_structure_name = 'VBAK'
CHANGING
it_outtab = gt_outtab
EXCEPTIONS
OTHERS = 4.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
REFRESH: gt_outtab_2.
CALL METHOD go_grid2->set_table_for_first_display
EXPORTING
i_structure_name = 'VBAP'
CHANGING
it_outtab = gt_outtab_2 " empty !!!
EXCEPTIONS
OTHERS = 4.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
REFRESH: gt_outtab_3.
CALL METHOD go_grid3->set_table_for_first_display
EXPORTING
i_structure_name = 'VBEP'
CHANGING
it_outtab = gt_outtab_3 " empty !!!
EXCEPTIONS
OTHERS = 4.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Link the docking container to the target dynpro
gd_repid = syst-repid.
CALL METHOD go_docking->link
EXPORTING
repid = gd_repid
dynnr = '0100'
* CONTAINER =
EXCEPTIONS
OTHERS = 4.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* NOTE: dynpro does not contain any elements
CALL SCREEN '0100'.
* Flow logic of dynpro:
*PROCESS BEFORE OUTPUT.
* MODULE STATUS_0100.
*PROCESS AFTER INPUT.
* MODULE USER_COMMAND_0100.
END-OF-SELECTION.
*& Module STATUS_0100 OUTPUT
* text
MODULE status_0100 OUTPUT.
SET PF-STATUS 'STATUS_0100'. " contains push button "ORDERS"
* SET TITLEBAR 'xxx'.
* Refresh display of detail ALV list
CALL METHOD go_grid2->refresh_table_display
* EXPORTING
* IS_STABLE =
* I_SOFT_REFRESH =
EXCEPTIONS
OTHERS = 2.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Refresh display of detail ALV list
CALL METHOD go_grid3->refresh_table_display
* EXPORTING
* IS_STABLE =
* I_SOFT_REFRESH =
EXCEPTIONS
OTHERS = 2.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDMODULE. " STATUS_0100 OUTPUT
*& Module USER_COMMAND_0100 INPUT
* text
MODULE user_command_0100 INPUT.
CASE gd_okcode.
WHEN 'BACK' OR
'END' OR
'CANC'.
SET SCREEN 0. LEAVE SCREEN.
" Double-click on first or second ALV grid
WHEN 'GET_ITEMS' OR
'GET_SCHEDULE_LINES'.
PERFORM get_details.
WHEN OTHERS.
ENDCASE.
CLEAR: gd_okcode.
ENDMODULE. " USER_COMMAND_0100 INPUT
*& Form INIT_CONTROLS
* text
* --> p1 text
* <-- p2 text
FORM init_controls .
* Create docking container
CREATE OBJECT go_docking
EXPORTING
parent = cl_gui_container=>screen0
ratio = 90
EXCEPTIONS
OTHERS = 6.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Create splitter container
CREATE OBJECT go_splitter
EXPORTING
parent = go_docking
rows = 1
columns = 2
* NO_AUTODEF_PROGID_DYNNR =
* NAME =
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
OTHERS = 3.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Get cell container
CALL METHOD go_splitter->get_container
EXPORTING
row = 1
column = 1
RECEIVING
container = go_cell_left.
CALL METHOD go_splitter->get_container
EXPORTING
row = 1
column = 2
RECEIVING
container = go_cell_right.
* Create 2nd splitter container
CREATE OBJECT go_splitter_2
EXPORTING
parent = go_cell_left
rows = 2
columns = 1
* NO_AUTODEF_PROGID_DYNNR =
* NAME =
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
OTHERS = 3.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Get cell container
CALL METHOD go_splitter_2->get_container
EXPORTING
row = 1
column = 1
RECEIVING
container = go_cell_top.
CALL METHOD go_splitter_2->get_container
EXPORTING
row = 2
column = 1
RECEIVING
container = go_cell_bottom.
* Create ALV grids
CREATE OBJECT go_grid1
EXPORTING
i_parent = go_cell_top
EXCEPTIONS
OTHERS = 5.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CREATE OBJECT go_grid2
EXPORTING
i_parent = go_cell_bottom
EXCEPTIONS
OTHERS = 5.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CREATE OBJECT go_grid3
EXPORTING
i_parent = go_cell_right
EXCEPTIONS
OTHERS = 5.
IF sy-subrc NE 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* Set event handler
SET HANDLER: lcl_eventhandler=>handle_double_click FOR go_grid1.
SET HANDLER: lcl_eventhandler=>handle_double_click FOR go_grid2.
SET HANDLER: lcl_eventhandler=>handle_double_click FOR go_grid3.
ENDFORM. " INIT_CONTROLS
*& Form GET_DETAILS
* text
* --> p1 text
* <-- p2 text
FORM get_details .
* define local data
DATA: ls_row TYPE lvc_s_row,
ls_col TYPE lvc_s_col.
data: ls_outtab type vbak,
ls_outtab_2 type vbap,
ls_outtab_3 type vbep.
BREAK-POINT.
CASE gd_okcode.
WHEN 'GET_ITEMS'.
CALL METHOD go_grid1->get_current_cell
IMPORTING
* e_row =
* e_value =
* e_col =
es_row_id = ls_row
es_col_id = ls_col
* es_row_no =
read TABLE gt_outtab into ls_outtab index ls_row-index.
refresh: gt_outtab_2,
gt_outtab_3.
SELECT * FROM vbap into TABLE gt_outtab_2
WHERE vbeln = ls_outtab-vbeln.
WHEN 'GET_SCHEDULE_LINES'.
CALL METHOD go_grid2->get_current_cell
IMPORTING
* e_row =
* e_value =
* e_col =
es_row_id = ls_row
es_col_id = ls_col
* es_row_no =
READ TABLE gt_outtab_2 into ls_outtab_2 index ls_row-index.
refresh: gt_outtab_3.
SELECT * FROM vbep into TABLE gt_outtab_3
WHERE vbeln = ls_outtab_2-vbeln
AND posnr = ls_outtab_2-posnr.
WHEN OTHERS.
RETURN.
ENDCASE.
IF ( lcl_eventhandler=>ms_row = ls_row AND
lcl_eventhandler=>ms_col = ls_col ).
MESSAGE 'Current cell identical' TYPE 'I'.
ELSE.
MESSAGE 'Current cell NOT identical' TYPE 'I'.
ENDIF.
ENDFORM. " GET_DETAILS
Regards
Uwe -
How to make Authority Check for ALVGrid?!
Hey mates,
i got the problem which is mentioned in the headline. How can i make an authority check for my ALVGrid? I mean i want to restrict special functions to the matching users ( Display, Edit, Delete mode ).
Would be cool if someone can help
Regards BastiHello Bastian
A simple approach would be to define three different transactions (e.g. Z_MYALV01, Z_MYALV02, Z_MYALV03) for editing/deleting, editing only and displaying only. Add the following coding to the report displaying your ALV grid:
CASE syst-tcode.
WHEN gc_tcode_create. " 01
" Allow all grid functions
WHEN gc_tcode_change. " 02
" Suppress grid functions for deleting rows
WHEN gc_tcode_display. " 03
" Suppress grid functions for editing/deleting
WHEN others.
RETURN.
ENDCASE.
Regards
Uwe -
SAP Gui 7.20 PLevel 3, ALV Problems with German Umlauts u00FCu00F6u00E4...
Hi,
we have updated our SAP Gui to version 7.20 lately and have some serious problems now with entering German Umlauts 'üöäÜÖÄß' into any editable ALV grid.
This means when typing in e.g. 'ü', the grid immediately removes this character and replaces it by, well, by nothing. It just ignores this character at all.
SAP Gui is currently at patch level 3 . The correct version is 7200.1.3.3190, build 1196830. Running German Windows XP clients with service pack 3. ERP is running SAP ECC 6.0.
Is this a known problem? Has sbdy. a workaround this?
Edit: Just found the release notes for SAP Gui 7.20 Lvl 3:
2010/09/02 Texts get garbled while typing umlaut character in ALVGrid, Note 1503081
This note, however, is not open for public view. OTH this means SAP was aware of this problem and tried to correct it to no avail so far.
Thanks,
Michael
Edited by: Michael Fritz on Nov 19, 2010 11:19 AMHi Martin,
where did you get this info? Any official SAP note available? Do you encounter similar problems?
We, too, noticed that uploading and downloading files from directories with German Umlauts, this fails now,too. There may be problems with files, too, however, we did not check this so far. The previous SAP Gui, I guess it was 7.10, didn't have any problems with this.
I start wondering if SAP Germany have ever tested this? Or do they not use Umlauts anyway -
Requrred screenshots for alvgrid display
hi,
i am the beginner to ABA/4,
i want to learn how to create alv reports .
can u people help me?Hi Sravanthi
WELCOME TO SDN COMMUNITY
ALV is ABAP LIST VIEWER.
To have more functionalities like totals, subtotals,logos,etc we choose ALVs compared to reports.
Check this:
Documentation on alv:
you can check out:
http://www.****************/Tutorials/ALV/ALVMainPage.htm
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCSRVALV/BCSRVALV.pdf
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/e8a1d690-0201-0010-b7ad-d9719a415907
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/41341147041806e10000000a1553f6/frameset.htm
ABAP List Viewer
The common features of report are column alignment, sorting, filtering, subtotals, totals etc. To implement these, a lot of coding and logic is to be put. To avoid that we can use a concept called ABAP List Viewer (ALV).
This helps us to implement all the features mentioned very effectively.
Using ALV, We can have three types of reports:
1. Simple Report
2. Block Report
3. Hierarchical Sequential Report
There are some function modules which will enable to produce the above reports without much effort.
All the definitions of internal tables, structures and constants are declared in a type-pool called SLIS.
1. SIMPLE REPORT.
The important function modules are
a. Reuse_alv_list_display
b. Reuse_alv_fieldcatalog_merge
c. Reuse_alv_events_get
d. Reuse_alv_commentary_write
e. Reuse_alv_grid_display
A. REUSE_ALV_LIST_DISPLAY : This is the function module which prints the data.
The important parameters are :
I. Export :
i. I_callback_program : report id
ii. I_callback_pf_status_set : routine where a user can set his own pf status or change the functionality of the existing pf status
iii. I_callback_user_command : routine where the function codes are handled
iv. I_structure name : name of the dictionary table
v. Is_layout : structure to set the layout of the report
vi. It_fieldcat : internal table with the list of all fields and their attributes which are to be printed (this table can be populated automatically by the function module REUSE_ALV_FIELDCATALOG_MERGE
vii. It_events : internal table with a list of all possible events of ALV and their corresponding form names.
II. Tables :
i. t_outtab : internal table with the data to be output
B. REUSE_ALV_FIELDCATALOG_MERGE : This function module is used to
populate a fieldcatalog which is essential to display the data in ALV.
If the output data is from a single dictionary table and all the
columns are selected, then we need not exclusively create the field cat
alog. Its enough to mention the table name as a parameter
(I_structure name) in the REUSE_ALV_LIST_DISPLAY. But in other cases
we need to create it.
The Important Parameters are :
I. Export :
i. I_program_name : report id
ii. I_internal_tabname : the internal output table
iii. I_inclname : include or the report name where all the dynamic forms are handled.
II Changing
ct_fieldcat : an internal table with the type SLIS_T_FIELDCAT_ALV which is
declared in the type pool SLIS.
C. REUSE_ALV_EVENTS_GET : Returns table of possible events for a list type
Parameters :
I. Import :
Et_Events : The event table is returned with all possible CALLBACK events
for the specified list type (column 'NAME'). For events to be processed by Callback, their 'FORM' field must be filled. If the field is initialized, the event is ignored. The entry can be read from the event table, the field 'FORM' filled and the entry modified using constants from the type pool SALV.
II. Export :
I_List_type :
0 = simple list REUSE_ALV_LIST_DISPLAY
1 = hierarchcal-sequential list REUSE_ALV_HIERSEQ_LIST_DISPLAY
2 = simple block list REUSE_ALV_BLOCK_LIST_APPEND
3 = hierarchical-sequential block list
REUSE_ALV_BLOCK_LIST_HS_APPEND
D. REUSE_ALV_COMMENTARY_WRITE : This is used in the Top-of-page event to print the headings and other comments for the list.
Parameters :
I. it_list_commentary : internal table with the headings of the type slis_t_listheader.
This internal table has three fields :
Typ : H header, S selection , A - action
Key : only when typ is S.
Info : the text to be printed
E. REUSE_ALV_GRID_DISPLAY : A new function in 4.6 version, to display the results in grid rather than as a preview.
Parameters : same as reuse_alv_list_display
This is an example for simple list.
2. BLOCK REPORT
This is used to have multiple lists continuously.
The important functions used in this report are:
A. REUSE_ALV_BLOCK_LIST_INIT
B. REUSE_ALV_BLOCK_LIST_APPEND
C. REUSE_ALV_BLOCK_LIST_HS_APPEND
D. REUSE_ALV_BLOCK_LIST_DISPLAY
A. REUSE_ALV_BLOCK_LIST_INIT
Parameters:
I. I_CALLBACK_PROGRAM
II. I_CALLBACK_PF_STATUS_SET
III. I_CALLBACK_USER_COMMAND
This function module is used to set the default gui status etc.
B. REUSE_ALV_BLOCK_LIST_APPEND
Parameters :
Export :
I. is_layout : layout settings for block
II. it_fieldcat : field catalog
III. i_tabname : internal table name with output data
IV. it_events : internal table with all possible events
Tables :
i. t_outtab : internal table with output data.
This function module adds the data to the block.
Repeat this function for all the different blocks to be displayed one after the other.
C. REUSE_ALV_BLOCK_LIST_HS_APPEND
This function module is used for hierarchical sequential blocks.
D. REUSE_ALV_BLOCK_LIST_DISPLAY
Parameters : All the parameters are optional.
This function module display the list with data appended by the above function.
Here the functions REUSE_ALV_FIELDCATALOG_MERGE, REUSE_ALV_EVENTS_GET, REUSE_ALV_COMMENTARY_WRITE can be used.
3. Hierarchical reports :
Hierarchical sequential list output.
The function module is
A. REUSE_ALV_HIERSEQ_LIST_DISPLAY
Parameters:
I. Export:
i. I_CALLBACK_PROGRAM
ii. I_CALLBACK_PF_STATUS_SET
iii. I_CALLBACK_USER_COMMAND
iv. IS_LAYOUT
v. IT_FIELDCAT
vi. IT_EVENTS
vii. i_tabname_header : Name of the internal table in the program containing the
output data of the highest hierarchy level.
viii. i_tabname_item : Name of the internal table in the program containing the
output data of the lowest hierarchy level.
ix. is_keyinfo : This structure contains the header and item table field
names which link the two tables (shared key).
II. Tables
i. t_outtab_header : Header table with data to be output
ii. t_outtab_item : Name of the internal table in the program containing the
output data of the lowest hierarchy level.
slis_t_fieldcat_alv : This internal table contains the field attributes. This internal table can be populated automatically by using REUSE_ALV_FIELDCATALOG_MERGE.
Important Attributes :
A. col_pos : position of the column
B. fieldname : internal fieldname
C. tabname : internal table name
D. ref_fieldname : fieldname (dictionary)
E. ref_tabname : table (dictionary)
F. key(1) : column with key-color
G. icon(1) : icon
H. symbol(1) : symbol
I. checkbox(1) : checkbox
J. just(1) : (R)ight (L)eft (C)ent.
K. do_sum(1) : sum up
L. no_out(1) : (O)blig.(X)no out
M. outputlen : output length
N. seltext_l : long key word
O. seltext_m : middle key word
P. seltext_s : short key word
Q. reptext_ddic : heading (ddic)
R. ddictxt(1) : (S)hort (M)iddle (L)ong
S. datatype : datatype
T. hotspot(1) : hotspot
some theory regarding alv:
This table tells ALV which events are processed by the caller by CALLBACK.
The table of possible events per list type can be initialized using the module REUSE_ALV_EVENTS_GET.
You can display the names of the constants in the type pools SLIS which represent the individual events using the individual test function in the function module
REUSE_ALV_EVENT_NAMES_GET. Only events with a form routine name are processed.
The table structure contains the fields:
IT_EVENTS-NAME
Name of the Callback event.
Possible Callback events:
Action
USER_COMMAND USING R_UCOMM LIKE SY-UCOMM RS_SELFIELD TYPE SLIS_SELFIELD
Process actions on the list
As this is a frequently-used Callback event, the form routine can also be passed directly in the interface in the IMPORTING parameter I_CALLBACK_USER_COMMAND.
PF_STATUS_SET USING RT_EXTAB TYPE SLIS_T_EXTAB
If a user list status is to be set, it must be done in the form routine assigned to this event. The ALV function codes, which must not be active, are in the Parameter RT_EXTAB. This table must be passed with the SET PF-STATUS command (with inactive user function codes as well, if necessary).
The STANDARD status of the function group SALV should be used as a template for a user-specific status.
As this is a frequently-used Callback event, its form routine can also be passed directly in the interface in the IMPORTING parameter I_CALLBACK_PF_STATUS_SET.
ITEM_DATA_EXPAND USING RS_SELFIELD TYPE SLIS_SELFIELD RFLG_ALL TYPE C
Only relevant for hierarchical-sequential lists using the layout parameter IS_LAYOUT-EXPAND_FIELDNAME of the structure IS_LAYOUT.
Exit for passing item entries (ITEM table) for a header record which was expanded interactively by the user.
RS_SELFIELD-TABINDEX contains the header table index for which the item entries are to be put in the global item output table (T_OUTTAB_SLAVE). The Callback is only called if ALV has no items for a header which is to be expanded.
RFLG_ALL is passed with 'X' if the user shows all items. The application must ensure that entries are not repeated in the item table. RS_SELFIELD is initial in this case.
CALLER_EXIT USING RS_DATA Is called at the beginning of the function module to make special settings. It is not usually used.
List processing events
IMPORTANT: The application Callback routine must not manipulate the internal output table and/or its header record. This restriction applies to all Callbacks which are called in the list output and run under the 'List processing events'.
TOP_OF_LIST no USING parameter. Information output at the start of the list
END_OF_LIST no USING parameter. Information output at the end of the list
TOP_OF_PAGE no USING parameter
Equivalent to the list processing TOP-OF-PAGE event
END_OF_PAGE no USING parameter. Not available for hierarchical-sequential lists.
Information output at the end of a page. This is only called for printing.
TOP_OF_COVERPAGE no USING parameter
The selection information and list status are output together (if they exist) on a separate page by default. See also the documentation of the parameters:
IS_PRINT-NO_COVERPAGE
IS_PRINT-NO_PRINT_SELINFOS
IS_PRINT-NO_PRINT_LISTINFOS
IS_LAYOUT-GET_SELINFOS
The user can format the header area of the 'cover page' himself or herself by specifying a Callback routine for this event.
END_OF_COVERPAGE no USING parameter
Analogously to TOP_OF_COVERPAGE the user can add other information to the information output by ALV (selection information, list status) at this event.
FOREIGN_TOP_OF_PAGE no USING parameter
The Top-of-page event is always processed in ALV and is only passed to the caller via the Callback mechanism. This is still the case if the caller, e.g. by a user action, processes a branch list which was not formatted by ALV (e.g. a popup with additional information about the list record selected and displayed by ALV).
In this case, top-of-page cannot be formatted by ALV analogously to the basic list, it must be handled completely by the caller. The event top-of-page still occurs in ALV. When ALV notices a top-of-page which was not caused by an ALV output, the form routine in FOREIGN_TOP_OF_PAGE is called.
FOREIGN_END_OF_PAGE no USING parameter
The event end-of-page is always processed in ALV and only passed to the caller via callback. This is still the case, e.g. when the caller processes a details list which was not formatted by ALV (e.g. a popup with further information about selected list records which were displayed by ALV).
In this case, end-of-page cannot be formatted by ALV analogously to the basic list, it must be handled completely by the caller. The event end-of-page still occurs in ALV. When ALV notices an end-of-page that was not caused by an ALV output, the form routine in FOREIGN_END_OF_PAGE is called.
BEFORE_LINE_OUTPUT USING RS_LINEINFO TYPE SLIS_LINEINFO
Output information before each output line. Should only be used in justified cases because it costs a lot of performance.
AFTER_LINE_OUTPUT USING RS_LINEINFO TYPE SLIS_LINEINFO
Output information after each output line. Should only be used in justified cases because it costs a lot of performance.
Internal use only
LIST_MODIFY USING R_TABNAME TYPE SLIS_TABNAME
R_INDEX LIKE SY-TABIX
R_INDEX_ITEM LIKE SY-TABIX
R_INDEX_SUM LIKE SY-TABIX
IT_EVENTS-FORM
Name of the form routine which should be called in the calling program at the event.
Field_catalog:
Field catalog with field descriptions
2.7.1. Description
Field catalog containing descriptions of the list output fields (usually a subset of the internal output table fields). A field catalog is required for every ALV list output.
The field catalog for the output table is built-up in the caller's coding. The build-up can be completely or partially automated by calling the REUSE_ALV_FIELDCATALOG_MERGE module
See also the documentation of the function module REUSE_ALV_FIELDCATALOG_MERGE.
The minimal field catalog is documented under 'default'. The caller can use the other optional parameters to assign output attributes to a field which differ from the default.
A field catalog need not be built-up and passed explicitly only under the following conditions:
The internal table to be output has the same structure as a Data Dictionary structure which is referred to in the internal table declaration using LIKE or INCLUDE STRUCTURE.
all fields in this structure are to be output
the structure name is passed to ALV in the parameter I_STRUCTURE_NAME.
See also the documentation of the IMPORTING paramter I_STRUCTURE_NAME.
Positioning
row_pos (row position)
value set: 0, 1 - 3
Only relevant if the list output is to be multi-line (two or three lines) by default.
A multi-line list can also be defined by the user interactively if the default list is one-line.
The parameter specifies the relative output line of the column in a multi-line list.
col_pos (column position)
value set: 0, 1 - 60
only relevant when the default relative column positions differ from the field catalog field sequence. The parameter specifies the relative column position of the field in the list output. The column order can be changed interactively by the user. If this parameter is initial for all field catalog entries, columns appear in the field catalog field sequence.
Identification
fieldname (field name)
value set: internal output table field name (required parameter)
Name of the internal output table field which is described by this field catalog entry
tabname (internal output table)
value set: SPACE, internal output table name
This parameter is used in 'manual' field catalog build-up only for hierarchical-sequential lists.
Name of the internal output table which contains the field FIELDCAT-FIELDNAME.
Data Dictionary reference
ref_fieldname (reference field name)
value set: SPACE, Data Dictionary field name
Name of the Data Dictionary field referred to.
This parameter is only used when the internal output table field described by the current field catalog entry has a reference to the Data Dictionary (not a program field), and the field name in the internal output table is different from the name of the field in the Data Dictionary. If the field names are identical, naming the Data Dictionary structure or table in the FIELDCAT-REF_TABNAME parameter is sufficient.
ref_tabname (reference table/structure field name)
value set: SPACE, name of a Data Dictionary structure or table
Structure or table name of the referred Data Dictionary field.
This parameter is only used when the internal output table field described by the current field catalog entry has a Data Dictionary reference (not a program field).
Reference to fields with currency/measurement unit
Each internal output table sum or quantity field whose decimal places are to be formatted appropriately for the unit in the list must follow the convention:
the field is of data type QUAN or CURR (internal type P) (the field must really have this physical data type. Overwriting the physical data type with the parameter FIELDCAT-DATATYPE has no effect)
There is a field in the internal output table which contains the associated unit.
There is also an entry in the field catalog for the unit field.
(If the unit is not to appear as a column in the list, and cannot be interactively displayed as a column, e.g. because it is always unambiguous and is therefore explicitly output by the caller in the list header, the field catalog units field entry can take the parameter FIELDCAT-TECH = 'X'.
The association of a value field to a unit affects the output as follows:
appropriate decimal places display for the unit
an initialized field with a link to a non-initial unit is output as '0' for the unit (if FIELDCAT-NO_ZERO is initial). When this field is summed, this unit affects whether the units are homogeneous.
an initialized field with a link to an initial unit is output as SPACE. When this field is summed, the unit SPACE does not affect the homogeneity of the units.
When non-initial fields with an initial unit are summed, the unit SPACE is considered to be a unit.
Link to currency unit
cfieldname (currency unit field name)
value set: SPACE, output table field name
Only relevant for amount columns with associated unit.
Name of the internal output table field containing the currency unit associated with the amount field FIELDCAT-FIELDNAME. The field in FIELDCAT-CFIELDNAME must have its own field catalog entry.
ctabname (internal currency unit field output table)
value set: SPACE, output table field name
only relevant for hierarchical-sequential lists
Name of the internal output table containing the FIELDCAT-CFIELDNAME field.
Link to measurement unit
qfieldname (measurement unit field name)
value set: SPACE, output table field name
only relevant for quantity columns with unit link.
Name of the internal output table field containing the measurement unit associated with the quantity field FIELDCAT-FIELDNAME.
The field in FIELDCAT-QFIELDNAME must have its own field catalog entry.
qtabname (internal measurement unit field output table)
value set: SPACE, output table field name
only relevant for hierarchical-sequential lists
Name of the internal output table containing the FIELDCAT-QFIELDNAME field.
Column output options
outputlen (column width)
value set: 0 (initial), n
For fields with a Data Dictionary link this parameter can be left initial.
For fields without a Data Dictionary link (program field) the parameter must be given the value of the desired field list output length (column width).
initial = column width is the output length of the referred Data Dictionary field (domain).
n = column width is n characters
key (key column)
value set: SPACE, 'X' 'X' = kex field (key field output in color)
Key fields can not be interactively hidden. Parameter FIELDCAT-NO_OUT must be left initial.
For exceptions see the documentation of the FIELDCAT-KEY_SEL parameter.
key_sel (hideable key column)
value set: SPACE, 'X'
only relevant when FIELDCAT-KEY = 'X'
Key field which can be hidden interactively.
The key column sequence cannot be changed interactively by the user.
The output is controlled by the FIELDCAT-NO_OUT parameter analogously to non-key fields.
no_out (field in field list)
value set: SPACE, 'X' 'X' = field is not displayed in the current list.
The user can interactively choose the field for output from the field list.
The user can display the contents of these fields at line level using the 'Detail' function.
See also the 'Detail screen' documentation of the parameter IS_LAYOUT.
tech (technical field)
value set: SPACE, 'X' 'X' = technical field
Field cannot be output in the list and cannot be displayed interactively.
Field can only be used in the field catalog (not in IT_SORT, ...).
emphasize (highlight columns in color)
value set: SPACE, 'X' or 'Cxyz' (x:'1'-'9'; y,z: '0'=off '1'=on)
'X' = column is colored with the default column highlight color.
'Cxyz' = column is colored with a coded color:
C: Color (coding must begin with C)
x: color number
y: bold
z: inverse
hotspot (column as hotspot)
value set: SPACE, 'X'
'X' = column cells are output as hotspots
fix_column (fix column)
value set: SPACE, 'X'
Not relevant for block lists (output of several lists consecutively)
'X' = column fixed (does not scroll horizontally)
All columns to be fixed must have this flag, starting from the left. If a column without this flag is output, only the columns to the left of this column are fixed. The user can change the column fixing interactively. See also the documentation of the Layout parameter
IS_LAYOUT-NO_KEYFIX of the IMPORTING paramter IS_LAYOUT.
do_sum (sum over column)
value set: SPACE, 'X' 'X' = a sum is to be calculated over this internal output table field.
This function can also be called by the user interactively.
no_sum (sums forbidden)
value set: SPACE, 'X' 'X' = no sum can be calculated over this field, although the data type of the field would allow summing.
input (column ready for input)
Function not available
Format column contents
icon
value set: SPACE, 'X' 'X' = column contents to be output as an icon.
The caller must consider the printability of icons.
symbol
value set: SPACE, 'X' 'X' = column contents are to be output as a symbol.
The internal output table column must be a valid symbol character.
The caller must consider the printability of symbols.
Symbols can usually be printed, but may not always be output correctly, depending on the printer configuration.
just (justification)
value set: SPACE, 'R', 'L', 'C'
Only relevant for fields of data type CHAR or NUMC
' ' = default justification for this data type
'R' = right-justified output
'L' = left-justified output
'C' = centered output
The justification of the column header always follows the justification of the columns. Independent justification of the column neader is not possible.
lzero (leading zeros)
value set: SPACE, 'X'
Only relevant for fields of data type NUMC
ALV outputs NUMC fields right-justified without leading zeros by default.
'X' = output with leading zeros
Note: If a NUMC field is output left-justified or centered by FIELDCAT-JUST, leading zeros are output. If the output of leading zeros is suppressed by a Data Dictionary reference ALPHA conversion exit, the output is always left-justified.
no_sign (no +/- sign) Only relevant for value fields
value set: SPACE, 'X' 'X' = value output without +/ sign
no_zero (suppress zeros) Only relevant for value fields
value set: SPACE, 'X' 'X' = suppress zeros
edit_mask (field formatting)
value set: SPACE, template
template = see documentation of WRITE formatting option USING EDIT MASK template
The output conversion conv can be made by template = '== conv'.
Texts
The following text parameters should be specified for program fields without a Data Dictionary reference. The texts are taken from the Data Dictionary for fields with a Data Dictionary reference. If this is not desired, the text parameters can also be specified. The Data Dictionary texts are then ignored. If the user changes the column width interactively, the column header text with the appropriate length is always used. The interactive function 'Optimize column width' takes account of both the field contents and the column headers: if all field contents are shorter than the shortest column header, the column width depends on the column header.
The 'long field label' is also used in display variant definition, sort, etc. popups.
seltext_l (long field label)
seltext_m (medium field label)
seltext_s (short field label)
reptext_ddic (header)
analogous to the Data element maintenance 'Header'
The specified text is not necessarily output in the list, an optimum among all texts is sought.
ddictxt (specify text)
value set: SPACE, 'L', 'M', 'S'
You can specify with values 'L', 'M', and 'S', the keyword that should always be used as column header. If the column width changes, no attempt is made in this case to find an appropriate header for the new output width.
Parameters for program fields without Data Dictionary reference
see also 'Text' parameters
datatype (data type)
value set: SPACE, Data Dictionary data type (CHAR, NUMC,...)
Only relevant for fields without Data Dictionary reference
Program field data type
ddic_outputlen (external output length)
value set: 0 (initial), n
Only relevant for fields without Data Dictionary reference whose output is nevertheless to be modified by a conversion exit.
Prerequisites:
FIELDCAT-EDIT_MASK = '==conv'
see also the documentation of the parameter FIELDCAT-EDIT_MASK
FIELDCAT-INTLEN = n
see also the documentation of the parameter FIELDCAT-INTLEN
n = external format field output length
The column width FIELDCAT-OUTPUTLEN need not be the same as the external format output length (FIELDCAT-DDIC_OUTPUTLEN).
intlen (internal output length)
value set: 0 (initial), n
Only relevant for fields without Data Dictionary reference whose output is nevertheless to be modified by a conversion exit.
Prerequisites:
FIELDCAT-EDIT_MASK = '==conv'
see also the documentation of the parameter FIELDCAT-EDIT_MASK
FIELDCAT-DDIC_OUTPUTLEN = n
see also the documentation of the parameter FIELDCAT-DDIC_OUTPUTLEN
n = internal format field output length
rollname (data element)
value set: SPACE, Data Dictionary data element name
F1 help can be provided for a program field without a Data Dictionary reference, or F1 help which differs from the Data Dictionary help can be provided for a field with a Data Dictionary reference, using this parameter.
When F1 help is called for this field, the documentation of the specified data element is displayed.
If the FIELDCAT-ROLLNAME is initial for fields with a Data Dictionary reference, the documentation of the data element of the referred Data Dictionary field is output.
Others
sp_group (field group key)
value set: SPACE, CHAR(1)
Field group key.
Keys are assigned to group names in the IT_SPECIAL_GROUPS parameter (see also the documentation of the parameter IT_SPECIAL_GROUPS).
When such an assignment is made in the field catalog and in IT_SPECIAL_GROUPS, the fields are grouped correspondingly in the display variant popup.
reprep (Report/Report interface selection criterion)
value set: SPACE, 'X'
Prerequisites:
The system contains the Report/Report interface (function group RSTI, table TRSTI)
Parameter LAYOUT-REPREP = 'X'
(see also the documentation of the parameter LAYOUT-REPREP of the IMPORTING parameter IS_LAYOUT )
'X' = When the Report/Report interface is called, the value of this field is passed in the selected interface start record as a selection criterion.
2.7.2. Default
The following entries are usually sufficient for internal table fields with a reference to a field defined in the Data Dictionary :
fieldname
ref_tabname
Notes:
ALV gets the remaining information from the Data Dictionary.
If no relative column position (COL_POS) is specified, the fields are output in the list in the order in which they were added to the field catalog.
REF_FIELDNAME need only be specifid when the name of the internal table field differs from the name of the referred Data Dictionary field.
Information which is explicitly entered in the field catalog is not overwritten by information from the Data Dictionary.
Priority rule:
Entries in the field catalog have priority over differing entries in the Data Dictionary.
The following entries are usually sufficient for internal table fields without a reference to the Data Dictionary (program fields):
fieldname
outputlen
datatype
seltext_s
seltext_m
seltext_l
Notes:
F1 help can be provided for program fields by assigning a data element to the parameter ROLLNAME.
If the parameters SELTEXT_S, SELTEXT_M, SELTEXT_L, and REPTEXT_DDIC contain appropriate field labels, the program field column headers are also adjusted appropriately when the column width changes
Simple ALV report
http://www.sapgenie.com/abap/controls/alvgrid.htm
http://wiki.ittoolbox.com/index.php/Code:Ultimate_ALV_table_toolbox
ALV
1. Please give me general info on ALV.
http://www.sapfans.com/forums/viewtopic.php?t=58286
http://www.sapfans.com/forums/viewtopic.php?t=76490
http://www.sapfans.com/forums/viewtopic.php?t=20591
http://www.sapfans.com/forums/viewtopic.php?t=66305 - this one discusses which way should you use - ABAP Objects calls or simple function modules.
2. How do I program double click in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=11601
http://www.sapfans.com/forums/viewtopic.php?t=23010
3. How do I add subtotals (I have problem to add them)...
http://www.sapfans.com/forums/viewtopic.php?t=20386
http://www.sapfans.com/forums/viewtopic.php?t=85191
http://www.sapfans.com/forums/viewtopic.php?t=88401
http://www.sapfans.com/forums/viewtopic.php?t=17335
4. How to add list heading like top-of-page in ABAP lists?
http://www.sapfans.com/forums/viewtopic.php?t=58775
http://www.sapfans.com/forums/viewtopic.php?t=60550
http://www.sapfans.com/forums/viewtopic.php?t=16629
5. How to print page number / total number of pages X/XX in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=29597 (no direct solution)
6. ALV printing problems. The favourite is: The first page shows the number of records selected but I don't need this.
http://www.sapfans.com/forums/viewtopic.php?t=64320
http://www.sapfans.com/forums/viewtopic.php?t=44477
7. How can I set the cell color in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=52107
8. How do I print a logo/graphics in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=81149
http://www.sapfans.com/forums/viewtopic.php?t=35498
http://www.sapfans.com/forums/viewtopic.php?t=5013
9. How do I create and use input-enabled fields in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=84933
http://www.sapfans.com/forums/viewtopic.php?t=69878
10. How can I use ALV for reports that are going to be run in background?
http://www.sapfans.com/forums/viewtopic.php?t=83243
http://www.sapfans.com/forums/viewtopic.php?t=19224
11. How can I display an icon in ALV? (Common requirement is traffic light icon).
http://www.sapfans.com/forums/viewtopic.php?t=79424
http://www.sapfans.com/forums/viewtopic.php?t=24512
12. How can I display a checkbox in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=88376
http://www.sapfans.com/forums/viewtopic.php?t=40968
http://www.sapfans.com/forums/viewtopic.php?t=6919
13. Top-of-page in ALV
14. ALV Group Heading
http://www.sap-img.com/fu037.htm
How to add list heading like top-of-page in ABAP lists?
http://www.sapfans.com/forums/viewtopic.php?t=58775
http://www.sapfans.com/forums/viewtopic.php?t=60550
http://www.sapfans.com/forums/viewtopic.php?t=16629
Go thru these programs they may help u to try on some hands on
ALV Demo program
BCALV_DEMO_HTML
BCALV_FULLSCREEN_DEMO ALV Demo: Fullscreen Mode
BCALV_FULLSCREEN_DEMO_CLASSIC ALV demo: Fullscreen mode
BCALV_GRID_DEMO Simple ALV Control Call Demo Program
BCALV_TREE_DEMO Demo for ALV tree control
BCALV_TREE_SIMPLE_DEMO
BC_ALV_DEMO_HTML_D0100
For beginners
if u have got access to R/3 system.. check transaction ABAPDOCU..
Go for Siemens material. Check the following link:
http://www.sapbrainsonline.com/TUTORIALS/TECHNICAL/ABAP_tutorial.html
http://sapabap.iespana.es/sapabap/manuales/learnabap/
Use function module ABAP_DOCU_DOWNLOAD..
This will download 1100 documents to your local drive .
Please check also the foll links to start learning ABAP.
http://help.sap.com/
http://www.sapgenie.com/abap/
http://www.sappoint.com/abap.html
http://cma.zdnet.com/book/abap/index.htm
http://www.sap-img.com
http://www.sappoint.com
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/abapindx.htm
http://sap.ittoolbox.com
U can also get help from below links
Please chk the below links
This is link from SAP about ABAP certification
http://www50.sap.com/useducation/certification/curriculum.asp?rid=351
http://www.sapteched.com/india/confactivities/certexam.htm
http://www50.sap.com/useducation/certification/curriculum.asp?rid=351
There is a pdf called ABAP certification.
http://www.esnips.com/web/SAP-ABAP?
You can try www.sapdoamin.com
They provide Certification simulation questions which are very useful and a must try site.
Have a look at below link for mySAP Technology - ABAP Workbench
https://websmp206.sap-ag.de/~sapidp/011000358700000746472003E
Have a look at below link for SAP NetWeaver - ABAP Workbench
http://www30.sap.com/hk/services/education/pdf/cert/ABAPWB.pdf
http://www.sap-img.com/ab040.htm
http://www.sapdomain.com/
this is link from SAP about ABAP certification
http://www50.sap.com/useducation/certification/curriculum.asp?rid=351
ABAP Materials
http://sapabap.iespana.es/sapabap/manuales/learnabap/
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/41341147041806e10000000a1553f6/frameset.htm
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/abapindx.htm
http://sap.niraj.tripod.com/
http://www.geocities.com/victorav15/sapr3/abapfun.html
http://www.sapgenie.com/abap/index.htm
http://www.sap-img.com/abap.htm
http://www.sapdevelopment.co.uk/tips/tipshome.htm
http://help.sap.com/printdocu/core/Print46c/en/Data/Index_en.htm
http://sap.ittoolbox.com/nav/t.asp?t=322&p=322&h1=322
http://sap.ittoolbox.com/nav/t.asp?t=448&p=448&h1=448
http://www.thespot4sap.com/
http://www.kabai.com/abaps/q.htm
http://www.geocities.com/mpioud/Abap_programs.html
http://www.sapgenie.com/abap/tips_and_tricks.htm
www.sapbrain.com
http://www.sapassist.com/code/d.asp?whichpage=1&pagesize=10&i=10&a=c&o=&t=&q=&qt=
In this link You can find Step by Step Scren Shot document :
http://www.201interviewquestions.com/docs/User%20exits.ppt
http://erpgenie.com/abaptips/component/option,com_docman/task,doc_details/gid,27/
Reprots
http://www.sapgenie.com/abap/reports.htm
http://www.allsaplinks.com/material.html
http://www.sapdevelopment.co.uk/reporting/reportinghome.htm
http://www.sapfans.com/forums/viewtopic.php?t=58286
http://www.sapfans.com/forums/viewtopic.php?t=76490
http://www.sapfans.com/forums/viewtopic.php?t=20591
http://www.sapfans.com/forums/viewtopic.php?t=66305 - this one discusses which way should you use - ABAP Objects calls or simple function modules.
Dictionary
http://sapabap.iespana.es/sapabap/manuales/learnabap/
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/41341147041806e10000000a1553f6/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21eb6e446011d189700000e8322d00/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/cf/21ea31446011d189700000e8322d00/frameset.htm
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCDWBDIC/BCDWBDIC.pdf
ABAP objects
Please check this online document (starting page 1291).
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf
Also check this links as well.
http://help.sap.com/saphelp_nw2004s/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
http://www.futureobjects.de/content/intro_oo_e.html
http://www.sap-img.com/abap/business-add-in-you-need-to-understand-abap-oo-interface-concept.htm
/people/ravikumar.allampallam/blog/2005/02/11/abap-oo-in-action
SAPScripts
http://esnips.com/doc/1ff9f8e8-0a4c-42a7-8819-6e3ff9e7ab44/sapscripts.pdf
http://esnips.com/doc/1e487f0c-8009-4ae1-9f9c-c07bd953dbfa/script-command.pdf
http://esnips.com/doc/64d4eccb-e09b-48e1-9be9-e2818d73f074/faqss.pdf
http://esnips.com/doc/cb7e39b4-3161-437f-bfc6-21e6a50e1b39/sscript.pdf
http://esnips.com/doc/fced4d36-ba52-4df9-ab35-b3d194830bbf/symbols-in-scripts.pdf
http://esnips.com/doc/b57e8989-ccf0-40d0-8992-8183be831030/sapscript-how-to-calculate-totals-and-subtotals.htm
SAP SCRIPT FIELDS
http://help.sap.com/saphelp_erp2005vp/helpdata/en/d1/8033ea454211d189710000e8322d00/content.htm
scripts easy material
http://www.allsaplinks.com/sap_script_made_easy.html
Check these step-by-step links
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/ccab6730-0501-0010-ee84-de050a6cc287
https://sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/8fd773b3-0301-0010-eabe-82149bcc292e
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/3c5d9ae3-0501-0010-0090-bdfb2d458985
for Smartforms material
http://www.sap-basis-abap.com/sapsf001.htm
http://www.sap-press.com/downloads/h955_preview.pdf
http://www.ossincorp.com/Black_Box/Black_Box_2.htm
http://www.sap-img.com/smartforms/sap-smart-forms.htm
http://www.sap-img.com/smartforms/smartform-tutorial.htm
http://www.sapgenie.com/abap/smartforms.htm
How to trace smartform
http://help.sap.com/saphelp_47x200/helpdata/en/49/c3d8a4a05b11d5b6ef006094192fe3/frameset.htm
http://www.help.sap.com/bp_presmartformsv1500/DOCU/OVIEW_EN.PDF
http://www.sap-img.com/smartforms/smart-006.htm
http://www.sap-img.com/smartforms/smartforms-faq-part-two.htm
check most imp link
http://www.sapbrain.com/ARTICLES/TECHNICAL/SMARTFORMS/smartforms.html
step by step good ex link is....
http://smoschid.tripod.com/How_to_do_things_in_SAP/How_To_Build_SMARTFORMS/How_To_Build_SMARTFORMS.html
BAPI
http://help.sap.com/saphelp_46c/helpdata/en/9b/417f07ee2211d1ad14080009b0fb56/frameset.htm
http://searchsap.techtarget.com/originalContent/0,289142,sid21_gci948835,00.html
Checkout !!
http://searchsap.techtarget.com/originalContent/0,289142,sid21_gci948835,00.html
http://techrepublic.com.com/5100-6329-1051160.html#
http://www.sap-img.com/bapi.htm
http://www.sap-img.com/abap/bapi-conventions.htm
http://www.sappoint.com/abap/bapiintro.pdf
http://www.sapgenie.com/abap/bapi/example.htm
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCMIDAPII/CABFAAPIINTRO.pdf
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/CABFABAPIREF/CABFABAPIPG.pdf
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCFESDE8/BCFESDE8.pdf
List of all BAPIs
http://www.planetsap.com/LIST_ALL_BAPIs.htm
http://www.sappoint.com/abap/bapiintro.pdf
http://www.sappoint.com/abap/bapiprg.pdf
http://www.sappoint.com/abap/bapiactx.pdf
http://www.sappoint.com/abap/bapilst.pdf
http://www.sappoint.com/abap/bapiexer.pdf
http://service.sap.com/ale
http://service.sap.com/bapi
http://www.planetsap.com/Bapi_main_page.htm
http://www.topxml.com/sap/sap_idoc_xml.asp
http://www.sapdevelopment.co.uk/
http://www.sapdevelopment.co.uk/java/jco/bapi_jco.pdf
ALV programs.
http://www.geocities.com/mpioud/Abap_programs.html
. How do I program double click in ALV?
http://www.sapfans.com/forums/viewtopic.php?t=11601
http://www.sapfans.com/forums/viewtopic.php?t=23010
How can I use ALV for reports that are going to be run in background?
http://www.sapfans.com/forums/viewtopic.php?t=83243
http://www.sapfans.com/forums/viewtopic.php?t=19224
ALV
http://www.sapfans.com/forums/viewtopic.php?t=58286
http://www.sapfans.com/forums/viewtopic.php?t=76490
http://www.sapfans.com/forums/viewtopic.php?t=20591
http://www.sapfans.com/forums/viewtopic.php?t=66305 - http://www.sapgenie.com/abap/reports.htm
http://www.allsaplinks.com/material.html
http://www.sapdevelopment.co.uk/reporting/reportinghome.htm
Top-of-page in ALV
ALV Group Heading
http://www.sap-img.com/fu037.htm
ALV
http://www.geocities.com/mpioud/Abap_programs.html
RFC Destination
ALE/ IDOC
http://help.sap.com/saphelp_erp2004/helpdata/en/dc/6b835943d711d1893e0000e8323c4f/content.htm
http://www.sapgenie.com/sapgenie/docs/ale_scenario_development_procedure.doc
http://www.netweaverguru.com/EDI/HTML/IDocBook.htm
http://www.sapgenie.com/sapedi/index.htm
http://www.sappoint.com/abap/ale.pdf
http://www.sappoint.com/abap/ale2.pdf
http://www.sapgenie.com/sapedi/idoc_abap.htm
http://www.allsaplinks.com/idoc_sample.html
http://www.sappoint.com/abap.html
http://www.netweaverguru.com/EDI/HTML/IDocBook.htm
http://www.sapgenie.com/sapedi/index.htm
http://www.allsaplinks.com/idoc_sample.html
Table Control -
ALV field catalogue update problem
Dear Friends;
I have a problem with field catalog update of ALV grid. I have designed an initial screen for selections and there are two pushbuttons here. According to the pushbutton selection the field catalogue values change, ie. some fields are hidden etc. After the first selection this works but if i exit the second screen and go to the selection screen to change my selection the fieldcatalogue is not updated accordingly altough i call the relevant fm. i fill in fieldcat with fm LVC_FIELDCATALOG_MERGE.
Can someone suggest a solution pls?
Thx
AliHi Ali,
chk this excellent Link.
http://www.sapdevelopment.co.uk/reporting/alv/alvgrid.htm
compare your code with the code there.
Regards
anver -
I am trying to implement some kind of a server listening for requests. The listener part of the app, is a daemon thread that listens for connections and instantiates a handling daemon thread once it gets some. However, my problem is that i must be able to kill the listening thread at the user's will (say via a sto button). I have done this via the Sun's proposed way, by testing a boolean flag in the loop, which is set to false when i wish to kill the thread. The problem with this thing is the following...
Once the thread starts excecuting, it will test the flag, find it true and enter the loop. At some point it will LOCK on the server socket waiting for connection. Unless some client actually connects, it will keep on listening indefinatelly whithought ever bothering to check for the flag again (no matter how many times you set the damn thing to false).
My question is this: Is there any real, non-theoretical, applied way to stop thread in java safely?
Thank you in advance,
LeftyThis was one solution from the socket programming forum, have you tried this??
public Thread MyThread extends Thread{
boolean active = true;
public void run(){
ss.setSoTimeout(90);
while (active){
try{
serverSocket = ss.accept();
catch (SocketTimeoutException ste){
// do nothing
// interrupt thread
public void deactivate(){
active = false;
// you gotta sleep for a time longer than the
// accept() timeout to make sure that timeout is finished.
try{
sleep(91);
}catch (InterruptedException ie){
interrupt();
} -
A problem with Threads and MMapi
I am tring to execute a class based on Game canvas.
The problem begin when I try to Play both a MIDI tone and to run an infinit Thread loop.
The MIDI tone "Stammers".
How to over come the problem?
Thanks in advance
Kobi
See Code example below:
import java.io.IOException;
import java.io.InputStream;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.media.Manager;
import javax.microedition.media.MediaException;
import javax.microedition.media.Player;
public class MainScreenCanvas extends GameCanvas implements Runnable {
private MainMIDlet parent;
private boolean mTrucking = false;
Image imgBackgound = null;
int imgBackgoundX = 0, imgBackgoundY = 0;
Player player;
public MainScreenCanvas(MainMIDlet parent)
super(true);
this.parent = parent;
try
imgBackgound = Image.createImage("/images/area03_bkg0.png");
imgBackgoundX = this.getWidth() - imgBackgound.getWidth();
imgBackgoundY = this.getHeight() - imgBackgound.getHeight();
catch(Exception e)
System.out.println(e.getMessage());
* starts thread
public void start()
mTrucking = true;
Thread t = new Thread(this);
t.start();
* stops thread
public void stop()
mTrucking = false;
public void play()
try
InputStream is = getClass().getResourceAsStream("/sounds/scale.mid");
player = Manager.createPlayer(is, "audio/midi");
player.setLoopCount(-1);
player.prefetch();
player.start();
catch(Exception e)
System.out.println(e.getMessage());
public void run()
Graphics g = getGraphics();
play();
while (true)
tick();
input();
render(g);
* responsible for object movements
private void tick()
* response to key input
private void input()
int keyStates = getKeyStates();
if ((keyStates & LEFT_PRESSED) != 0)
imgBackgoundX++;
if (imgBackgoundX > 0)
imgBackgoundX = 0;
if ((keyStates & RIGHT_PRESSED) != 0)
imgBackgoundX--;
if (imgBackgoundX < this.getWidth() - imgBackgound.getWidth())
imgBackgoundX = this.getWidth() - imgBackgound.getWidth();
* Responsible for the drawing
* @param g
private void render(Graphics g)
g.drawImage(imgBackgound, imgBackgoundX, imgBackgoundY, Graphics.TOP | Graphics.LEFT);
this.flushGraphics();
}You can also try to provide a greater Priority to your player thread so that it gains the CPU time when ever it needs it and don't harm the playback.
However a loop in a Thread and that to an infinite loop is one kind of very bad programming, 'cuz the loop eats up most of your CPU time which in turn adds up more delays of the execution of other tasks (just as in your case it is the playback). By witting codes bit efficiently and planning out the architectural execution flow of the app before start writing the code helps solve these kind of issues.
You can go through [this simple tutorial|http://oreilly.com/catalog/expjava/excerpt/index.html] about Basics of Java and Threads to know more about threads.
Regds,
SD
N.B. And yes there are more articles and tutorials available but much of them targets the Java SE / EE, but if you want to read them here is [another great one straight from SUN|http://java.sun.com/docs/books/tutorial/essential/concurrency/index.html] .
Edited by: find_suvro@SDN on 7 Nov, 2008 12:00 PM -
Hi all,
I would like to ask you for a help. I need to write a small program at my university. I started to write a midlet which function would be to countdown time for sports activities. I woul like to start a new thread - the one that counts down - and at the same time make the main thread sleep. After the "countdown" thread finishes, the main thread wakes up and waits for user input. The problem is that when the "countdown" thread finishes his work, I've got Uncaught exception java/lang/NullPointerException. error and the midlet halts.
Below you can find the code
import java.lang.*;
import java.util.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class intervals extends MIDlet implements CommandListener
public Display ekran;
private SweepCanvas sweeper;
private Form rundy;
private TextField round0, round1, round2, round3, round4, round5, round6, round7, round8;
private long czas,x;
private Command exitCommand;
private Command addRound;
private Command delRound;
private Command start;
private TextField repeat;
private Form odliczanie;
private Alert ostrz;
Licznik thread;
String test;
StringItem test1;
int parz,i,j,k;
static int l;
int ilrund;
int ilpowt;
Item sec;
long sec1;
public intervals()
rundy = new Form("Interwały sportowe");
exitCommand = new Command("Wyjście", Command.EXIT, 2);
addRound = new Command("Dodaj","Dodaj rundę", Command.ITEM,1);
delRound = new Command("Usuń","Usuń ostatnią rundę", Command.ITEM,1);
start = new Command("Start", Command.ITEM,1);
odliczanie = new Form("Odliczanie");
TextField dodaj(TextField kolej)
kolej=new TextField("Podaj czas (s) rundy "+parz,null, 4, TextField.NUMERIC);//stworzenie nowej instancji do wybierania czasu trwania rundy
if(rundy.size()==0)
rundy.insert(rundy.size(),kolej);
else
rundy.insert(rundy.size()-1, kolej);
return kolej;
void odliczanie(TextField round)
monitor m=new monitor();
k=Integer.parseInt(round.getString());
ekran.setCurrent(odliczanie);
thread=new Licznik(k,odliczanie);
thread.start();
ekran.setCurrent(rundy);
public void startApp()// throws MIDletStateChangeException
rundy.deleteAll();
repeat = new TextField("Podaj ilość powtórzeń",null,1,TextField.NUMERIC);
rundy.addCommand(addRound);
rundy.addCommand(exitCommand);
rundy.setCommandListener(this);
Canvas obrazek = new MyCanvas();
ekran = Display.getDisplay(this);
ekran.setCurrent(obrazek);
czas=System.currentTimeMillis();
while (System.currentTimeMillis()<czas+1000)
continue;
ekran.setCurrent(rundy);
public void pauseApp()
public void destroyApp(boolean unconditional)
notifyDestroyed();
public void commandAction(Command c, Displayable s)
if (c == exitCommand)
destroyApp(false);
notifyDestroyed();
else if(c==addRound)
if(rundy.size()==0)//Sprawdzenie ilości elementów w celu poprawnego wyświetlania liczby rund w formie
parz=1;
else
parz=rundy.size();
switch(parz)
case 1:
round0=dodaj(round0);break;
case 2:
round1=dodaj(round1);break;
case 3:
round2= dodaj(round2);break;
case 4:
round3=dodaj(round3);break;
case 5:
round4=dodaj(round4);break;
default:
ostrz=new Alert("Uwaga","Maksymalna liczba rund wynosi 9", null, AlertType.INFO);
ostrz.setTimeout(3000);
ekran.setCurrent(ostrz);
if(rundy.size()==1)
rundy.append(repeat);
rundy.addCommand(start);
rundy.addCommand(delRound);
else if(c==delRound)
if(rundy.size()!=0)
rundy.delete(rundy.size()-2);
if (rundy.size()==1)
rundy.deleteAll();
if(rundy.size()==0)
rundy.removeCommand(delRound);
rundy.removeCommand(start);
else if(c==start)
ilrund=rundy.size()-1;
if(this.repeat.size()>0)
ilpowt=Integer.parseInt(this.repeat.getString());
ekran = Display.getDisplay(this);
for (i=1; i<=ilpowt;i++)
odliczanie= new Form("Odliczanie");
for (j=0;j<ilrund;j++)
switch(j)
case 0:
odliczanie(round0);
break;
case 1:
odliczanie(round1);
break;
case 2:
odliczanie(round2);
break;
case 3:
odliczanie(round3);
break;
case 4:
odliczanie(round4);
break;
case 5:
odliczanie(round5);
break;
case 6:
odliczanie(round6);
break;
case 7:
odliczanie(round7);
break;
case 8:
odliczanie(round8);
break;
class Licznik extends Thread
int czas1,k;
Form forma;
monitor m;
public Licznik(int k,Form formap)
czas1=k;
forma=formap;
public synchronized void run()
while(czas1>0)
forma.deleteAll();
forma.append("Czas pozostały (s): "+czas1);
try{Thread.sleep(1000);} catch(InterruptedException e){e.printStackTrace();}
czas1--;
if(czas1<=0)
m.put();
}and monitor class
public class monitor
boolean busy=false;
synchronized void get()
if(!busy)
try
wait();
}catch(InterruptedException e){e.printStackTrace();}
notify();
synchronized void put()
if(busy)
try
wait();
}catch(InterruptedException e){e.printStackTrace();}
busy=true;
notify();
}Can anybody help me with this?Groovemaker,
Your Licznik class has a member m of type monitor, which has not been instantiated (in other words is null) hence, when calling m.put() you get NullPointerException. Please also mind, that using Thread.sleep(1000) is not an accurate way of measuring time.
If I may, please use recommended for Java class naming conventions - some of your names use lower case, while other don't which is confusing to the reader.
Daniel -
Problem with threads within applet
Hello,
I got an applet, inside this applet I have a singleton, inside this singleton I have a thread.
this thread is running in endless loop.
he is doing something and go to sleep on and on.
the problem is,
when I refresh my IE6 browser I see more than 1 thread.
for debug matter, I did the following things:
inside the thread, sysout every time he goes to sleep.
sysout in the singleton constructor.
sysout in the singleton destructor.
the output goes like this:
when refresh the page, the singleton constructor loading but not every refresh, sometimes I see the constructor output and sometimes I dont.
The thread inside the singleton is giving me the same output, sometime I see more than one thread at a time and sometimes I dont.
The destructor never works (no output there).
I don't understand what is going on.
someone can please shed some light?
thanks.
btw. I am working with JRE 1.1
this is very old and big applet and I can't convert it to something new.Ooops. sorry!
I did.
public void start() {
public void stop() {
public void destroy() {
try {
resetAll();
Configuration.closeConnection();
QuoteItem.closeConnection();
} finally {
try {
super.finalize();
} catch (Throwable e) {
e.printStackTrace();
} -
Problem with Threads and a static variable
I have a problem with the code below. I am yet to make sure that I understand the problem. Correct me if I am wrong please.
Code functionality:
A timer calls SetState every second. It sets the state and sets boolean variable "changed" to true. Then notifies a main process thread to check if the state changed to send a message.
The problem as far I understand is:
Assume the timer Thread calls SetState twice before the main process Thread runs. As a result, "changed" is set to true twice. However, since the main process is blocked twice during the two calls to SetState, when it runs it would have the two SetState timer threads blocked on its synchronized body. It will pass the first one, send the message and set "changed" to false since it was true. Now, it will pass the second thread, but here is the problem, "changed" is already set to false. As a result, it won't send the message even though it is supposed to.
Would you please let me know if my understanding is correct? If so, what would you propose to resolve the problem? Should I call wait some other or should I notify in a different way?
Thanks,
B.D.
Code:
private static volatile boolean bChanged = false;
private static Thread objMainProcess;
protected static void Init(){
objMainProcess = new Thread() {
public void run() {
while( objMainProcess == Thread.currentThread() ) {
GetState();
objMainProcess.setDaemon( true );
objMainProcess.start();
public static void initStatusTimer(){
if(objTimer == null)
objTimer = new javax.swing.Timer( 1000, new java.awt.event.ActionListener(){
public void actionPerformed( java.awt.event.ActionEvent evt){
SetState();
private static void SetState(){
if( objMainProcess == null ) return;
synchronized( objMainProcess ) {
bChanged = true;
try{
objMainProcess.notify();
}catch( IllegalMonitorStateException e ) {}
private static boolean GetState() {
if( objMainProcess == null ) return false;
synchronized( objMainProcess ) {
if( bChanged) {
SendMessage();
bChanged = false;
return true;
try {
objMainProcess.wait();
}catch( InterruptedException e ) {}
return false;
}Thanks DrClap for your reply. Everything you said is right. It is not easy to make them alternate since SetState() could be called from different places where the state could be anything else but a status message. Like a GREETING message for example. It is a handshaking message but not a status message.
Again as you said, There is a reason I can't call sendMessage() inside setState().
The only way I was able to do it is by having a counter of the number of notifies that have been called. Every time notify() is called a counter is incremented. Now instead of just checking if "changed" flag is true, I also check if notify counter is greater than zero. If both true, I send the message. If "changed" flag is false, I check again if the notify counter is greater than zero, I send the message. This way it works, but it is kind of a patch than a good design fix. I am yet to find a good solution.
Thanks,
B.D. -
Problem with threads running javaw
Hi,
Having a problem with multi thread programming using client server sockets. The program works find when starting the the application in a console using java muti.java , but when using javaw multi.java the program doesnt die and have to kill it in the task manager. The program doesnt display any of my gui error messages either when the server disconnect the client. all works find in a console. any advice on this as I havent been able to understand why this is happening? any comment would be appreciated.
troy.troy,
Try and post a minimum code sample of your app which
does not work.
When using javaw, make sure you redirect the standard
error and standard output streams to file.
Graeme.Hi Graeme,
I dont understand what you mean by redirection to file? some of my code below.
The code works fine under a console, code is supposed to exit when the client (the other server )disconnects. the problem is that but the clientworker side of the code still works. which under console it doesnt.
public class Server{
ServerSocket aServerSocket;
Socket dianosticsSocket;
Socket nPortExpress;
ClientListener aClientListener;
LinkedList queue = new LinkedList();
int port = 0;
int clientPort = 0;
String clientName = null;
boolean serverAlive = true;
* Server constructor generates a server
* Socket and then starts a client threads.
* @param aPort socket port of local machine.
public Server(int aPort, String aClientName, int aClientPort){
port = aPort;
clientName = aClientName;
clientPort = aClientPort;
try{
// create a new thread
aServerSocket = new ServerSocket(port) ;
// connect to the nPortExpress
aClientListener = new ClientListener(InetAddress.getByName(clientName), clientPort, queue,this);
// aClientListener.setDaemon(true);
aClientListener.start();
// start a dianostic port
DiagnosticsServer aDiagnosticsServer = new DiagnosticsServer(port,queue,aClientListener);
// System.out.println("Server is running on port " + port + "...");
// System.out.println("Connect to nPort");
catch(Exception e)
// System.out.println("ERROR: Server port " + port + " not available");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Server port " + port + " not available", JOptionPane.ERROR_MESSAGE);
serverAlive = false;
System.exit(1);
while(serverAlive&&aClientListener.hostSocket.isConnected()){
try{
// connect the client
Socket aClient = aServerSocket.accept();
//System.out.println("open client connection");
//System.out.println("client local: "+ aClient.getLocalAddress().toString());
// System.out.println("client localport: "+ aClient.getLocalPort());
// System.out.println("client : "+ aClient.getInetAddress().toString());
// System.out.println("client port: "+ aClient.getLocalPort());
// make a new client thread
ClientWorker clientThread = new ClientWorker(aClient, queue, aClientListener, false);
// start thread
clientThread.start();
catch(Exception e)
//System.out.println("ERROR: Client connection failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client connection failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end constructor Server
void serverExit(){
JOptionPane.showMessageDialog(null, "Server ","ERROR: nPort Failure", JOptionPane.ERROR_MESSAGE);
System.exit(1);
}// end class Server
*** connect to another server
public class ClientListener extends Thread{
InetAddress hostName;
int hostPort;
Socket hostSocket;
BufferedReader in;
PrintWriter out;
boolean loggedIn;
LinkedList queue; // reference to Server queue
Server serverRef; // reference to main server
* ClientListener connects to the host server.
* @param aHostName is the name of the host eg server name or IP address.
* @param aHostPort is a port number of the host.
* @param aLoginName is the users login name.
public ClientListener(InetAddress aHostName, int aHostPort,LinkedList aQueue,Server aServer) // reference to Server queue)
hostName = aHostName;
hostPort = aHostPort;
queue = aQueue;
serverRef = aServer;
// connect to the server
try{
hostSocket = new Socket(hostName, hostPort);
catch(IOException e){
//System.out.println("ERROR: Connection Host Failed");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort Failed", JOptionPane.ERROR_MESSAGE);
System.exit(0);
} // end constructor ClientListener
** multi client connection server
ClientWorker(Socket aSocket,LinkedList aQueue, ClientListener aClientListener, boolean diagnostics){
queue = aQueue;
addToQueue(this);
client = aSocket;
clientRef = aClientListener;
aDiagnostic = diagnostics;
} // end constructor ClientWorker
* run method is the main loop of the server program
* in change of handle new client connection as well
* as handle all messages and errors.
public void run(){
boolean alive = true;
String aSubString = "";
in = null;
out = null;
loginName = "";
loggedIn = false;
while (alive && client.isConnected()&& clientRef.hostSocket.isConnected()){
try{
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(client.getOutputStream()));
if(aDiagnostic){
out.println("WELCOME to diagnostics");
broadCastDia("Connect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
out.println("WELCOME to Troy's Server");
broadCastDia("Connect : client "+client.getInetAddress().toString());
out.flush();
String line;
while(((line = in.readLine())!= null)){
StringTokenizer aStringToken = new StringTokenizer(line, " ");
if(!aDiagnostic){
broadCastDia(line);
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
else{
if(line.equals("GETIPS"))
getIPs();
else{
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
} // end while
catch(Exception e){
// System.out.println("ERROR:Client Connection reset");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR:Client Connection reset", JOptionPane.ERROR_MESSAGE);
try{
if(aDiagnostic){
broadCastDia("Disconnect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
broadCastDia("Disconnect : client "+client.getInetAddress().toString());
out.flush();
// close the buffers and connection;
in.close();
out.close();
client.close();
// System.out.println("out");
// remove from list
removeThreadQueue(this);
alive = false;
catch(Exception e){
// System.out.println("ERROR: Client Connection reset failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client Connection reset failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end method run
* method run - Generates io stream for communicating with the server and
* starts the client gui. Run also parses the input commands from the server.
public void run(){
boolean alive = true;
try{
// begin to life the gui
// aGuiClient = new ClientGui(hostName.getHostName(), hostPort, loginName, this);
// aGuiClient.show();
in = new BufferedReader(new InputStreamReader(hostSocket.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(hostSocket.getOutputStream()));
while (alive && hostSocket.isConnected()){
String line;
while(((line = in.readLine())!= null)){
System.out.println(line);
broadCast(line);
} // end while
} // end while
catch(Exception e){
// System.out.println("ERRORa Connection to host reset");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort reset", JOptionPane.ERROR_MESSAGE);
try{
hostSocket.close();
}catch(Exception a){
JOptionPane.showMessageDialog(null, (a.toString()),"ERROR: Exception", JOptionPane.ERROR_MESSAGE);
alive = false;
System.exit(1);
} // end method run -
Problem with Threads and "plase wait..."-Window
Hi everyone,
I have a problem that I'm not able to solve in any way... I have a time-consuming task (a file decryption) which I execute in a separate thread; I've used the SwingWorker class, like suggested by sun-tutorial, and it works right. The problem is that I have to wait that the decryption have finished before continuing with program-execution. Therefore I would like to display a "please wait"-window while the task runs. I've tryed all the possible ways I know but the problem is always the same: the waitWindow is displayed empty, the bounds are painted but the contents no; it's only painted when the decrypt-task has finished. Please help me, I have no more resources....
decrypt-file code:
public class DecryptFile {
private String cryptedFileNameAndPath;
private ByteArrayInputStream resultStream = null;
// need for progress
private int lengthOfTask;
private int current = -1;
private String statMessage;
public DecryptFile(String encZipFileNameAndPath) {
cryptedFileNameAndPath = encZipFileNameAndPath;
//Compute length of task...
// 0 for indeterminate
lengthOfTask = 0;
public ByteArrayInputStream getDecryptedInputStream() {
return this.resultStream;
* Called from ProgressBarDemo to start the task.
public void go() {
current = -1;
final SwingWorker worker = new SwingWorker() {
public Object construct() {
return new ActualTask();
worker.start();
* Called from ProgressBarDemo to find out how much work needs
* to be done.
public int getLengthOfTask() {
return lengthOfTask;
* Called from ProgressBarDemo to find out how much has been done.
public int getCurrent() {
return current;
public void stop() {
current = lengthOfTask;
* Called from ProgressBarDemo to find out if the task has completed.
public boolean done() {
if (current >= lengthOfTask)
return true;
else
return false;
public String getMessage() {
return statMessage;
* The actual long running task. This runs in a SwingWorker thread.
class ActualTask {
ActualTask () {
current = -1;
statMessage = "";
resultStream = AIUtil.getInputStreamFromEncZip(cryptedFileNameAndPath); //here the decryption happens
current = 0;
statMessage = "";
}The code that calls decryption and displays waitWindow
final WaitSplash wS = new WaitSplash("Please wait...");
final DecryptFile cryptedTemplate = new DecryptFile (this.templateFile);
cryptedTemplate.go();
while (! cryptedTemplate.done()) {
try {
wait();
} catch (Exception e) { }
this.templateInputStream = cryptedTemplate.getDecryptedInputStream();
wS.close();Thanks, thanks, thanks in advance!
EdoardoMaybe you can try setting the priority of the long-running thread to be lower? so that the UI will be more responsive...
-
im using jdk 1.6 with java wtk 2.1
ya i know..
2.1 is a jdk1.4 source
but im using souce as 1.4 during compiliation so thats not the prob
this is my code
package org.learn;
import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.Display;
public class thtest extends MIDlet
Thread t;
public void startApp()
Alert a=new Alert("hello");
a.setString("hello");
Alert b=new Alert("world");
b.setString("world");
Display d = Display.getDisplay(this );
d.setCurrent(a);
t=Thread.currentThread();
try{
t.sleep(10000);
catch (Exception e){}
d.setCurrent(b);
public void pauseApp()
public void destroyApp(boolean unconditional)
its just supposed to pause between the alerts using threads
however when i run it using the wtk, the emulator run properly but when i launch the app, it stops executing giving me this:
"Error verifying method org/learn/thtest startApp()V
Approximate bytecode offset 49: Inconsistent or missing stackmap at target
%the stack info%
Execution completed.
437782 bytecodes executed
9 thread switches
486 classes in the system (including system classes)
2506 dynamic objects allocated (73832 bytes)
2 garbage collections (60652 bytes collected)
Execution completed.
437782 bytecodes executed
9 thread switches
486 classes in the system (including system classes)
ALERT: java/lang/VerifyError: org/learn/thtest.
2506 dynamic objects allocated (73832 bytes)
2 garbage collections (60652 bytes collected)
please can someone help me out with this, is it an error on my part or do i have to set some option.Hi gandalf123,
First, Thread.sleep is a static method, so you don't need to create a Thread object to use it.
I think the problem is due to the fact you don't preverify your midlet.
More over, you don't need to double post your question. -
Problem with threads and camera.
Hi everybody!
I've a problem with taking snapshot.
I would like to display a loading screen after it take snapshot ( sometimes i
have to wait few seconds after i took snapshot. Propably photo is being taken in time where i have to wait).
I was trying to use threads but i didn't succeed.
I made this code:
display.setCurrent(perform);
new Thread(new Runnable(){
public void run() {
while((!performing.isShown()) && (backgroundCamera.isShown())){
Thread.yield();
notifyAll();
}).start();
new Thread(new Runnable(){
public void run() {
try {
this.wait();
} catch(Exception e) {
exceptionHandler(e);
photo = camera.snapshot();
display.setCurrent(displayPhoto);
}).start();This code is sometimes showing performing screen but sometimes no.
I don't know why. In my opinion performing.isShown() method isn't working correctly.
Does anyone have some idea how to use threads here?Hi,
I've finally managed to work this fine.
The code:
Object o = new Object();
display.setCurrent(perform);
new Thread(new Runnable(){
public void run() {
while(!performing.isShown()){
Thread.yield();
synchronized(o) {
o.notify();
}).start();
new Thread(new Runnable(){
public void run() {
try {
synchronized(o) {
o.wait(1);
} catch(Exception e) {
exceptionHandler(e);
photo = camera.snapshot();
display.setCurrent(displayPhoto);
}).start();
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