HOW TO ADD COLORS TO JTABLE ROWS??

I want to change the colors of alternate rows in my JTable. I am doing so using CellRenderer, but then I am not able to view the selected rows.
tell me how can I change the row color as well as a selected row should be identifiable from others, as ordinary JTable.
thanks

Hi,
try this:
define your own DefaultTableCellRenderer like this:
class MyRenderer extends DefaultTableCellRenderer {
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column){
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
if (isSelected) setBackground( Color.anyColor );
return this;
Hope it helps!
Regards, Paul

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In alvs how to add colore

how to add colore to the particular fields in alvs?
could u plz explain clearly with code and comments

Hi,
go thr below code,
tables used -
tables: mkpf,
        mseg,
        lfa1,
        makt.
global hashed tables used
data: begin of wa_mkpf, "header
      mblnr like mkpf-mblnr,
      mjahr like mkpf-mjahr,
      budat like mkpf-budat,
      xblnr like mkpf-xblnr,
      end of wa_mkpf.
data: ht_mkpf like hashed table of wa_mkpf
      with unique key mblnr mjahr
      with header line.
data: st_mkpf like standard table of wa_mkpf
      with header line.
data: begin of wa_mseg, " line items
      mblnr like mseg-mblnr,
      mjahr like mseg-mjahr,
      zeile like mseg-zeile,
      bwart like mseg-bwart,
      charg like mseg-charg,
      matnr like mseg-matnr,
      lifnr like mseg-lifnr,
      erfmg like mseg-erfmg,
      erfme like mseg-erfme,
      end of wa_mseg.
data ht_mseg like hashed table of wa_mseg
      with unique key mblnr mjahr zeile
      with header line.
data st_mseg like standard table of wa_mseg
      with header line.
cache structure for lfa1 records
data: begin of wa_lfa1,
      lifnr like lfa1-lifnr,
      name1 like lfa1-name1,
      end of wa_lfa1.
data ht_lfa1 like hashed table of wa_lfa1
      with unique key lifnr
      with header line.
cache structure for material related data
data: begin of wa_material,
      matnr like makt-matnr,
      maktx like makt-maktx,
      end of wa_material.
data: ht_material like hashed table of wa_material
        with unique key matnr
        with header line.
result table
data: begin of wa_lst, "
      budat like mkpf-budat,
      mblnr like mseg-mblnr,
      lifnr like mseg-lifnr,
      name1 like lfa1-name1,
      xblnr like mkpf-xblnr,
      zeile like mseg-zeile,
      charg like mseg-charg,
      matnr like mseg-matnr,
      maktx like makt-maktx,
      erfmg like mseg-erfmg,
      erfme like mseg-erfme,
      mjahr like mseg-mjahr,
      end of wa_lst.
data: ht_lst like hashed table of wa_lst
        with unique key mblnr mjahr zeile
        with header line.
data: begin of wa_lst1, " sumary by material
      matnr like mseg-matnr,
      maktx like makt-maktx,
      erfmg like mseg-erfmg,
      erfme like mseg-erfme,
      color_line(4) TYPE c,           " Line color
      color_cell    TYPE lvc_t_scol, " Cell color
      celltab type LVC_T_STYL,
      end of wa_lst1.
data: ht_lst1 like hashed table of wa_lst1
        with unique key matnr
        with header line.
structures for alv grid display.
itabs
type-pools: slis.
data: it_lst            like standard table of wa_lst with header line,
      it_fieldcat_lst   type slis_t_fieldcat_alv with header line,
      it_sort_lst       type slis_t_sortinfo_alv,
      it_lst1           like standard table of wa_lst1 with header line,
      it_fieldcat_lst1 type slis_t_fieldcat_alv with header line,
      it_sort_lst1      type slis_t_sortinfo_alv.
structures
data: wa_sort         type slis_sortinfo_alv,
      ls_layout       type slis_layout_alv.
color management.
DATA : wa_color    TYPE lvc_s_scol.
Internal table for color management.
DATA : it_color    TYPE TABLE          OF lvc_s_scol.
itab for input enabling.
DATA: lt_celltab TYPE lvc_t_styl. "
global varialbes
data: g_lines type i.
data: g_repid like sy-repid,
      ok_code       like sy-ucomm.
selection-screen
"text: Dates:
select-options: so_budat for mkpf-budat default sy-datum.
"text: Material numbers.
select-options: so_matnr for mseg-matnr.
selection-screen uline.
selection-screen skip 1.
"Text: show summary by material.
parameters: gp_bymat as checkbox default ''.
parameters: gp_hier as checkbox default 'X'.
start-of-selection.
perform get_data.
perform show_data.
end-of-selection.
      FORM get_data                                                 *
form get_data.
        select mblnr mjahr budat xblnr
            into table ht_mkpf
           from mkpf
          where budat in so_budat. " make use of std index.
have we retrieved data from mkpf?
describe table ht_mkpf lines g_lines.
if g_lines > 0.
if true then retrieve all related records from mseg.
Doing this way we make sure that the access is by primary key
of mseg.
The reason is that is faster to filter them in memory
than to allow the db server to do it.
    select mblnr mjahr zeile bwart charg
             matnr lifnr erfmg erfme
      into table ht_mseg
      from mseg
        for all entries in ht_mkpf
     where mblnr = ht_mkpf-mblnr
       and mjahr = ht_mkpf-mjahr.
endif.
fill t_lst or t_lst1 according to user's choice.
if gp_bymat = ' '.
    perform fill_ht_lst.
else.
    perform fill_ht_lst1.
endif.
endform.
form fill_ht_lst.
refresh ht_lst.
Example: how to discard unwanted data in an efficient way.
loop at ht_mseg.
filter unwanted data
    check ht_mseg-bwart = '101' or ht_mseg-bwart = '901'.
    check ht_mseg-matnr in so_matnr.
read header line.
    read table ht_mkpf with table key mblnr = ht_mseg-mblnr
    mjahr = ht_mseg-mjahr.
    clear ht_lst.
* note : this may be faster if you specify field by field.
    move-corresponding ht_mkpf to ht_lst.
    move-corresponding ht_mseg to ht_lst.
    perform read_lfa1 using ht_mseg-lifnr changing ht_lst-name1.
    perform read_material using ht_mseg-matnr changing ht_lst-maktx.
    insert table ht_lst.
endloop.
endform.
form fill_ht_lst1.
data: colorear.
refresh ht_lst1.
Example: how to discard unwanted data in an efficient way.
         hot to simulate a collect in a faster way
loop at ht_mseg.
filter unwanted data
    check ht_mseg-bwart = '101' or ht_mseg-bwart = '901'.
    check ht_mseg-matnr in so_matnr.
* note : this may be faster if you specify field by field.
    read table ht_lst1 with table key matnr = ht_mseg-matnr
    transporting erfmg.
    if sy-subrc <> 0. " if matnr doesn't exist in sumary table
    " insert a new record
      clear ht_lst1.
      ht_lst1-matnr = ht_mseg-matnr.
      perform read_material using ht_mseg-matnr changing ht_lst1-maktx.
      ht_lst1-erfmg = ht_mseg-erfmg.
      ht_lst1-erfme = ht_mseg-erfme.
      if colorear = ''.
        colorear = 'X'.
        refresh it_color.
        ht_lst1-color_cell[] = it_color[].
        MOVE 'C410' TO ht_lst1-color_line.
      else.
        colorear = ' '.
        refresh it_color. clear it_color.
        MOVE 'MATNR' TO wa_color-fname.
        MOVE '6'         TO wa_color-color-col.
        MOVE '1'         TO wa_color-color-int.
        MOVE '1'         TO wa_color-color-inv.
        APPEND wa_color TO it_color.
        MOVE 'MAKTX' TO wa_color-fname.
        MOVE '3'         TO wa_color-color-col.
        MOVE '1'         TO wa_color-color-int.
        MOVE '1'         TO wa_color-color-inv.
        APPEND wa_color TO it_color.
        MOVE 'ERFMG' TO wa_color-fname.
        MOVE '5'         TO wa_color-color-col.
        MOVE '1'         TO wa_color-color-int.
        MOVE '1'         TO wa_color-color-inv.
        APPEND wa_color TO it_color.
        ht_lst1-color_cell[] = it_color[].
        clear ht_lst1-color_line.
      endif.
      insert table ht_lst1.
    else." a record was found.
    " collect erfmg. To do so, fill in the unique key and add
    " the numeric fields.
      ht_lst1-matnr = ht_mseg-matnr.
      add ht_mseg-erfmg to ht_lst1-erfmg.
      modify table ht_lst1 transporting erfmg.
    endif.
endloop.
endform.
implementation of cache for lfa1.
form read_lfa1 using p_lifnr changing p_name1.
        read table ht_lfa1 with table key lifnr = p_lifnr
        transporting name1.
if sy-subrc <> 0.
    clear ht_lfa1.
    ht_lfa1-lifnr = p_lifnr.
    select single name1
       into ht_lfa1-name1
      from lfa1
    where lifnr = p_lifnr.
    if sy-subrc <> 0. ht_lfa1-name1 = 'n/a in lfa1'. endif.
    insert table ht_lfa1.
endif.
p_name1 = ht_lfa1-name1.
endform.
implementation of cache for material data
form read_material using p_matnr changing p_maktx.
read table ht_material with table key matnr = p_matnr
transporting maktx.
if sy-subrc <> 0.
    ht_material-matnr = p_matnr.
    select single maktx into ht_material-maktx
      from makt
     where spras = sy-langu
       and matnr = p_matnr.
    if sy-subrc <> 0. ht_material-maktx = 'n/a in makt'. endif.
    insert table ht_material.
endif.
p_maktx = ht_material-maktx.
endform.
form show_data.
if gp_hier = 'X'. "no anda.
   perform show_hierarchicalALV.
else.
    if gp_bymat = ' '.
      perform show_ht_lst.
    else.
      perform show_ht_lst1.
    endif.
endif.
endform.
form show_hierarchicalALV.
st_mkpf[] = ht_mkpf[].
st_mseg[] = ht_mseg[].
call function 'REUSE_ALV_HIERSEQ_LIST_DISPLAY'
exporting
I_INTERFACE_CHECK              = ' '
I_CALLBACK_PROGRAM             =
I_CALLBACK_PF_STATUS_SET       = ' '
I_CALLBACK_USER_COMMAND        = ' '
IS_LAYOUT                      =
IT_FIELDCAT                    =
IT_EXCLUDING                   =
IT_SPECIAL_GROUPS              =
IT_SORT                        =
IT_FILTER                      =
IS_SEL_HIDE                    =
I_SCREEN_START_COLUMN          = 0
I_SCREEN_START_LINE            = 0
I_SCREEN_END_COLUMN            = 0
I_SCREEN_END_LINE              = 0
I_DEFAULT                      = 'X'
I_SAVE                         = ' '
IS_VARIANT                     =
IT_EVENTS                      =
IT_EVENT_EXIT                  =
   i_tabname_header               =
   i_tabname_item                 =
I_STRUCTURE_NAME_HEADER        =
I_STRUCTURE_NAME_ITEM          =
   is_keyinfo                     =
IS_PRINT                       =
IS_REPREP_ID                   =
I_BUFFER_ACTIVE                =
I_BYPASSING_BUFFER             =
IMPORTING
E_EXIT_CAUSED_BY_CALLER        =
ES_EXIT_CAUSED_BY_USER         =
tables
    t_outtab_header                = st_mkpf
    t_outtab_item                  = st_mseg
EXCEPTIONS
PROGRAM_ERROR                  = 1
OTHERS                         = 2
if sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
endif.
endform.
form show_ht_lst.
"needed because the FM can't use a hashed table.
it_lst[] = ht_lst[].
perform fill_layout using 'full display'
                       changing ls_layout.
perform fill_columns_lst.
perform sort_lst.
g_repid = sy-repid.
call function 'REUSE_ALV_GRID_DISPLAY'
       exporting
            i_callback_program       = g_repid
            i_callback_pf_status_set = 'SET_PF_STATUS'
            is_layout                = ls_layout
            it_fieldcat              = it_fieldcat_lst[]
           it_sort                  = it_sort_lst
       tables
            t_outtab                 = it_lst
       exceptions
            program_error            = 1
            others                   = 2.
endform.
form show_ht_lst1.
"needed because the FM can't use a hashed table.
it_lst1[] = ht_lst1[].
perform fill_layout using 'Sumary by matnr'
                       changing ls_layout.
perform fill_columns_lst1.
perform sort_lst.
g_repid = sy-repid.
call function 'REUSE_ALV_GRID_DISPLAY'
       exporting
            i_callback_program       = g_repid
            i_callback_pf_status_set = 'SET_PF_STATUS'
            is_layout                = ls_layout
            it_fieldcat              = it_fieldcat_lst1[]
           it_sort                  = it_sort_lst
       tables
            t_outtab                 = it_lst1
       exceptions
            program_error            = 1
            others                   = 2.
endform.
form fill_layout using p_window_titlebar
               changing cs_layo type slis_layout_alv.
clear cs_layo.
cs_layo-window_titlebar        = p_window_titlebar.
cs_layo-edit                   = 'X'.
cs_layo-edit_mode              = space.
MOVE 'COLOR_LINE' TO cs_layo-info_fieldname.
Field that identify cell color in inetrnal table
MOVE 'COLOR_CELL' TO cs_layo-coltab_fieldname.
move 'CELLTAB' TO cs_layo-stylefname.
endform.                    " armar_layout_stock
form set_pf_status using rt_extab type slis_t_extab.
create a new status
and then select extras -> adjust template -> listviewer
set pf-status 'VISTA'.
endform.        "set_pf_status
define add_lst.
clear it_fieldcat_lst.
it_fieldcat_lst-fieldname     = &1.
it_fieldcat_lst-outputlen     = &2.
it_fieldcat_lst-ddictxt       = 'L'.
it_fieldcat_lst-seltext_l       = &1.
it_fieldcat_lst-seltext_m       = &1.
it_fieldcat_lst-seltext_m       = &1.
if &1 = 'MATNR'.
    it_fieldcat_lst-emphasize = 'C111'.
endif.
append it_fieldcat_lst.
end-of-definition.
define add_lst1.
clear it_fieldcat_lst.
it_fieldcat_lst1-fieldname     = &1.
it_fieldcat_lst1-outputlen     = &2.
it_fieldcat_lst1-ddictxt       = 'L'.
it_fieldcat_lst1-seltext_l       = &1.
it_fieldcat_lst1-seltext_m       = &1.
it_fieldcat_lst1-seltext_m       = &1.
append it_fieldcat_lst1.
end-of-definition.
form fill_columns_lst.
set columns for output.
refresh it_fieldcat_lst.
add_lst 'BUDAT' 10.
add_lst   'MBLNR' 10.
add_lst 'LIFNR' 10.
add_lst 'NAME1' 35.
add_lst 'XBLNR' 15.
add_lst    'ZEILE' 5.
add_lst    'CHARG' 10.
add_lst   'MATNR' 18.
add_lst   'MAKTX' 30.
add_lst   'ERFMG' 17.
add_lst   'ERFME' 5.
add_lst   'MJAHR' 4.
endform.
form fill_columns_lst1.
set columns for output.
refresh it_fieldcat_lst1.
add_lst1 'MATNR' 18.
add_lst1 'MAKTX' 30.
add_lst1 'ERFMG' 17.
add_lst1 'ERFME' 5..
endform.
Horacio Zapettini
Program to Calculate FI Opening Balance
How to find the Opening balance for a given period in FI Module for a Particular GL A/c.
I was calculated opening balance, code is below maybe it will be helpful.
*find period.
CALL FUNCTION 'DATE_TO_PERIOD_CONVERT'
    EXPORTING
      i_date         = s_budat-low
      i_periv        = i_tab-periv                          "'K4'
    IMPORTING
      e_buper        = v_donem
      e_gjahr        = v_gjahr
    EXCEPTIONS
      input_false    = 1
      t009_notfound = 2
      t009b_notfound = 3
      OTHERS         = 4.
*calc opening balance hesabý
SELECT * FROM knc1 WHERE kunnr = i_tab-kunnr
                     AND bukrs = i_tab-bukrs " s_bukrs
                     AND gjahr EQ v_gjahr.
    v_dnm = v_donem.
opening balance first calc > old year ,
    WHILE v_dnm > 1.
      v_dnm = v_dnm - 1.
      CONCATENATE 'knc1-um' v_dnm 's' INTO v_field_name_borc.
      CONCATENATE 'knc1-um' v_dnm 'h' INTO v_field_name_alacak.
      ASSIGN (v_field_name_borc) TO old
add days which is from selected date-low month
    IF v_donem > 1.
      v_dnm = v_donem - 1.
    ELSE.
      v_dnm = v_donem.
    ENDIF.
    SELECT SINGLE * FROM t009b WHERE periv = i_tab-periv    "'K4'
                                 AND bdatj = s_budat-low+0(4)
                                 AND poper = v_dnm.
    t009b-butag = t009b-butag + 1.
    IF s_budat-low+6(2) NE t009b-butag.
      v_date_high = s_budat-low - 1.
      IF v_donem = 1.
        v_date_low = s_budat-low.
        v_date_low+4(4) = '0101'.
      ELSE.
        CONCATENATE t009b-bdatj t009b-bumon t009b-butag INTO
        v_date_low.
      ENDIF.
      SELECT * FROM bsad WHERE bukrs EQ i_tab-bukrs "IN s_bukrs
                            AND kunnr = i_tab-kunnr
                            AND budat BETWEEN v_date_low AND
                            v_date_high
                            AND umskz = space
                            AND blart IN s_blart.
        IF bsad-shkzg = 'S'.
          i_tab-dmbtr_s = i_tab-dmbtr_s + ( bsad-dmbtr ).
        ELSEIF bsad-shkzg = 'H'.
          i_tab-dmbtr_h = i_tab-dmbtr_h + ( bsad-dmbtr   ).
        ENDIF.
      ENDSELECT.
      SELECT * FROM bsid WHERE bukrs EQ i_tab-bukrs "IN s_bukrs
                           AND kunnr = i_tab-kunnr
                           AND budat BETWEEN v_date_low AND
                           v_date_high
                           AND umskz = space
                           AND blart IN s_blart.
                             AND gsber IN gsber.
        IF bsid-shkzg = 'S'.
          i_tab-dmbtr_s = i_tab-dmbtr_s + ( bsid-dmbtr   ).
        ELSEIF bsid-shkzg = 'H'.
          i_tab-dmbtr_h = i_tab-dmbtr_h + ( bsid-dmbtr   ).
        ENDIF.
      ENDSELECT.
    ENDIF.
    "opening balance ( þirket bazlý )z1 degeri
   i_tab-z1 = i_tab-z1 + ( knc1-umsav + i_tab-dmbtr_s - i_tab-dmbtr_h ).
for israel
    i_tab-dmbtril_s = i_tab-dmbtr_s .
    i_tab-dmbtril_h = i_tab-dmbtr_h .
ENDSELECT.
reward if useful.

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Hi,
for a JTable I would suggest the following:
1.in the body of the class
int ghostrow = -1;
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ghostrow = -1;
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                                                   int row,
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I'm exporting data to a CSV file using printWriter.
Question: is it possible to add colors, bold text or stretch the length of a column in the produced CSV file?
This, of course, should be the end result of the file (not do it when the file is open)
Thank you!

xianwinwin wrote:
Question: is it possible to add colors, bold text or stretch the length of a column in the produced CSV file?Of course if you assumed that you'd be looking at the file with a fixed-width font, you could insert a bunch of tabs or spaces to get columns to match up, but I strongly advise you not do that. I think of CSV as a poor-man's excel data file or perhaps a flat database file, but most importantly it holds data in a standard format that can be read and manipulated by many different programs, including ones you write yourself. It is not meant to be for pretty visualization. Try to pretty it up and you possibly ruin it's main reason for existing. For nice visualization I'd create a small app that read the CSV, formatted it nicely and either displayed the data or stored it in some pretty format as a non-CSV file.

How to add events in JTable fields

Hello friends i m working with file transfer client server project in my college.In my client part i have used JTable with AbstractTableModel.
In my JTable it list the current directory files and directories under current directory .
now how can i add events to the the directories that it shows on JTable so that when i click on directory it displays files under that selected directory.
can anyone help me in that.
I will send you my code for that project if anyone can help me.
please help me to do that

You can handle row selections with selection listener but if you want to handle double clicks you can use something similar to this:
table.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e)
int column = table.columnAtPoint(e.getPoint());
int row = table.rowAtPoint(e.getPoint());
Object cellValue = table.getValueAt(row, column);
// Insert files below clicked row
});Please, be more patient in the future -you would probably get an answer if you just posted to any of these two forums.

How to add more than one rows to form, without submitting to database

Hi!
I have an updatable report similar to this http://htmldb.oracle.com/pls/otn/f?p=31517:163:3149788972931514::NO
Now, as much as I'm aware the standard thing is that when I add a row, put in data and then add a nother row, previous data is commited and another row is added.
I, on the other hand, would like to add as much rows as I need and populate them with data and then submitt all the changes in the end. So the user nows, that when he SAVES data it's submited to db, not in between.
My form is not standard, it uses SQL, and APEX_ITEM, I even have more updatable reports on one page etc, so I presume, processes like AddRowToTabularForm don't come handy.
Thanx for any suggestions,
N.

user10824271 wrote:
I, on the other hand, would like to add as much rows as I need and populate them with data and then submitt all the changes in the end. So the user nows, that when he SAVES data it's submited to db, not in between.So you would have a select list for the number of rows?
Add that X(select list) number of rows, populate rows, then insert?
Is that how you vision it?
Did you try this? [Tabular Form Add Rows Using Item | http://htmldb.oracle.com/pls/otn/f?p=31517:209:3291656615866862:ADD:NO:::]
Edited by: MHolley on Mar 11, 2009 8:53 AM

How to add ComboBox in Jtable Header

Hello everyone,
I want to add a Combox box in JTable Header .Basically it works as central access to whole table e.g. by selecting delete row in combo box then it should delete the current selected row.If somebody has any idea please share it.
Thanks in advance.

The individual headers are not Swing components and therefore do not respond to mouse events in the same way as Swing components. Why don't you just have a popup menu that is positioned over the currently selected row? If you want to apply an action to all selected rows then have a set of buttons placed above the table header.

How to Add and delete a row while using Abstract Table Model

Hi,
I need to do the following functionalities in JTable.I've done tht but a small problem.
1. Adding a row (Using addRow() method from DefaultTableModel).
2. Deleting a row(Using setRowCount() method from Default Table Model).
3. Sorting the table based on the selection of column(Using TableSorter which is using AbstracTableModel).
As the sorting is mandatory i've to change my model to Abtract Table Model
The problem is this Abstract Table Model doesn't have any methods to Add a row or deleting a row (setRowCount()).If anybody has written any utility method for this using Abstract Table Model help me.

Using TableSorter which is using AbstracTableModel).If your talking about the TableSorter class from the Swing tutorial, then you create the TableSorter class by passing it a TableModel. There is no reason you can't use the DefaltTableModel.
I changed the code in TableSorterDemo as follows:
        String[] columnNames = {"First Name",
                                        "Last Name",
                                        "Sport",
                                        "# of Years",
                                        "Vegetarian"};
        Object[][] data = {
            {"Mary", "Campione",
             "Snowboarding", new BigDecimal(1), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new BigDecimal(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new BigDecimal(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new BigDecimal(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new BigDecimal(10), new Boolean(false)}
          DefaultTableModel model = new DefaultTableModel(data, columnNames)
               public Class getColumnClass(int c)
                    return getValueAt(0, c).getClass();
        TableSorter sorter = new TableSorter(model);
//        TableSorter sorter = new TableSorter(new MyTableModel()); //ADDED THIS

How to add Chekbox in Jtable?

I am working on Swing application and my requirement is add new column that dispay the checkboxes, so user have the access to check/uncheck row for further process.
In application 3 tabbedpanes are there & in the 3rd tabbedpane table data is displaying.
//Code snippet
public class AIProductPropertiesUI
private productsTablemodel productmodel = null;
private String [] pNames = {"select","type","name","revision","marketing","relationship"};
public JPanel getMiscPanel()
productmodel= new productsTablemodel();
table = new JTable(productmodel);
protected class productsTablemodel extends AbstractTableModel
Vector productDetails ;
productsTablemodel()
productDetails = model.getProductDetails();
headerNames = model.getLabelNameMapping();
public Object getValueAt(int rowIndex, int columnIndex)
if (productDetails.size()>0)
Hashtable ht = (Hashtable) productDetails.get(rowIndex);
//ht contains the list of values for all the column as in pNames[].
// dynamic value for Select column is ""(blank string)
String str = "" ;
if(ht.containsKey(pNames[columnIndex]))
str = (String) ht.get(pNames[columnIndex]);
return str;
}else{
return null;
I tried following ways-
1)if(column==0)
return new JCheckBox("str",true);
here output is dispaying complete details of Checkbox
/* output for checkbox cell is --- javax.swing.JCheckBox[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.5,
border=javax.swing.plaf.BorderUIResource$CompoundBorderUIResource@b1b4c3,flags=296,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,
disabledIcon=,disabledSelectedIcon=,margin=javax.swing.plaf.InsetsUIResource[top=2,left=2,bottom=2,right=2],paintBorder=false,paintFocus=true,
pressedIcon=,rolloverEnabled=true,rolloverIcon=,rolloverSelectedIcon=,selectedIcon=,text=str]*/
2)overiding public Class getColumnClass(int column)
if(column==0)
return Class.forName("java.lang.Boolean");
till this point its working fine... but in above code method public Object getValueAt(int rowIndex, int columnIndex)
I am checking if(Column==0)
return Class.forName("java.lang.Boolean");
here it is throwing ClassCastException.. java.lang.Class cannot be cast to java.lang.Boolean
Please provide me solution aas soon as possible...coz from past 2 days i m stucking on this and due to this not able to move ahead on my application development.
Thanks in Advance
Sharad

more time researching instead of cross-posting would be better for you
[http://saloon.javaranch.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic&f=2&t=018027]

How to add JTextArea in JTable

Hi..
I want to add JTextArea in my table in one of the column of JTable. I have already written a code which implements TablecellEditor and TableCellRenderer. I have already succeeded to set textarea in one cell for multiple line but when i go to another cell my previous value disappears. Can anybody tell me the solution.

I think the reason that this is happening, is that you have to override the setValue method in TableModel, inorder for the value to be displayed correctly.
Another thing.
I too am trying to implement a textarea as one of the cells in a col.
But the problem is that when I create my celleditor extends TextArea and implements TableCellEditor, and compile it says that all eventLsiteners are already implemented .
And if I just extend the AbstractCellEditor, and return it in the method getCellEditor, it says incompatible types.
Can you tell me how to implement a CustomCellEditor
Thanks,

HOW TO ADD COLORS TO JTABLE ROWS??

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