JTable - Rows of different hieghts

Quickie:
Does anyone know of an example of how to implement
JTable with rows of different heights.
Many thanks
James

Thanks for replying... but I am still having problems
I have written the following code
table.setRowHeight(3, tblMain.getRowHeight(3) * 10);
table.clearSelection();
table.revalidate();
table.repaint();
and I do not see any difference.
Can you help?

Similar Messages

Different number of rows for different columns in JTable

hi
I need to create a JTable with different number of rows for different columns...
Also the rowheight should be different in each column...
say there is a JTable with 2 columns... Col1 having 5 rows and column 2 having 2 rows...
The rowHeight in Col2 should be an integer multiple of Rowheight in Col1
how do I do this ??
can anybody send me some sample code ?????
thanx in advance

How about nesting JTables with 1 row and many columns in a JTable with 1 column and many rows.
Or you could leave the extra columns null/blank.
You could use a GridBagLayout and put a panel in each group of cells and not use JTable at all.
It would help if you were more specific about how you wanted it to appear and behave.

Display of text of different rows with different color - JTable

Hi all !
I have struck in a problem. I have to display the different rows with different color in the JTable. I have created an arraylist in the model class, which stores color of all the rows. Now in renderer class, I am just picking up color from the arraylist, taking rowIndex as index for arraylist. I used to set foreground color for each row in the renderer class. The problem is that it is not showing all the rows properly, sometimes it show all the rows correctly, but as i resize the window/panel, it starts behaving abnormally, some text is painted properly, but other aren't.
Does anybody have any solution regarding this problem.
One thing i want to mention is that in getTableCellRendererComponent() method, i used to retrive the color everytime, and setting the foreground color of the text. Is this a right approach or some other technique have to be followed.
here is code of renderer class ---
import java.awt.*;
import javax.swing.*;
* Renderer to plot stage record table.
public class ExStageCellRenderer extends javax.swing.table.DefaultTableCellRenderer
    Color curColor;
     * returns component to be painted, overridding this method from
     * DefaultCellRenderer
     * @param table
     *            table whose component has to be plotted
     * @param value
     *            value of that particular cell
     * @param isSelected
     *            is Cell selected
     * @param hasFocus
     *            has the cell got focus
     * @param row
     *            row of the cell
     * @param column
     *            column of the cell
     * @return painted component
    public Component getTableCellRendererComponent (JTable table, Object value, boolean isSelected, boolean hasFocus, int row,
            int column)
        Component component = super.getTableCellRendererComponent (table, value, isSelected, hasFocus, row, column);
        ExStageDataModel model = (ExStageDataModel)table.getModel ();
        if (curColor instanceof Color) {
                curColor = model.getColor(row);
            } else {
                // If color unknown, use table's foreground color
                curColor = table.getForeground();
        String tooltip = "";
        StringBuffer stringBuffer = new StringBuffer ();
        for (int i = 0; i < table.getColumnCount (); i++)
                Object Value = table.getValueAt (row, i);
                if (Value == null) continue;
                stringBuffer.append (Value.toString () + "    ");
        tooltip += stringBuffer.toString ();
        tooltip = tooltip.trim ();
        ((JComponent) component).setToolTipText (tooltip);
        if (column == 1)
            this.setHorizontalAlignment (SwingConstants.CENTER);
        else if (column == 0 || column == 4 || column == 5)
            this.setHorizontalAlignment (SwingConstants.LEFT);
        else
            this.setHorizontalAlignment (SwingConstants.RIGHT);
        // LOOK!! should turn tip off if there is none !!
        component.setForeground (this.curColor);
        //System.out.println("render : " + component.getBounds ());
        //component.validate ();
        component.update (component.getGraphics ());
        return component;
Waiting for reply....
Code snooker

Hmm, why are you doing the curColor instanceof? What does this accomplish? I don't see any reason to ask what it was before; all you should be interested in here is what you want it to be now.
All you should have to do is say:
this.setForeground(model.getColor(row));I also don't see why you're doing the update() -- JTable is going to do that for you at the appropriate time, you have no idea if now is the right time to do it or not. In fact it probably isn't, you're probably updating the previously-drawn cell with your new color and alignment, which may be the strange behavior you're seeing.
Also, I don't see why you're doing the super. All that's going to do is return "this", so why not just use "this"?
Well, without knowing your larger code or exactly what you're trying to accomplish, maybe I'm just missing something.
I've just recently been working on a program where I had some similar requirements -- different foreground and background colors and alignment -- and I found it much cleaner to create a class to hold all this data, and then create a default renderer for that class. Then I made some constructors for this "attribute" class that let me set whatever I need, like
public CellAttrib(String s,Color c,int alignment,Border border)
this.s=s;
this.c=c;
this.border=border;
// with suitable defaults ...
pubic CellAtrtrib(String s)
this.s=s;
this.c=Color.BLACK;
this.border=null;
}Then the renderer just queried the cell-attributes class, as in:
setForeground(value.getColor());
setHorizontalAlignment(value.getAlignment());
setBorder(value.getBorder);

Customize jtable rows

Hi:
I have been trying to make my table rows display different colors. Basically, it works already. But there is a weird aspect I don't quite understand; here is what I did:
I wrote a CellRenderer by extending JLabel and implementing TableCellRenderer; in the CellRenderer, I override the getTableCellRendererComponent method; in this method, I did all my row updating stuff; I also assigned this CellRenderer to each of my table's columns;
The weird part is, everytime I update my table (such as adding rows), I must RE-assign the CellRenderers to my columns; otherwise, the rows do not get customized like the way i want them to. Since the CellRenderers are assigned to each column , why does it matter when new rows are added? I don't quite understand that.
Thanks

You have to modify the underlying TableModel and implement the listener mechanism necessary for that. AFAIK, the default JTable is quite dumb and can't do anything,

How to get multiple records in one row and different column

Hi All,
I am using oracle database 11g
and i have a two tables table_1, table_2
table_1 having columns
emp_no
first_name
middle_name
last_name
email
and table_2 having columns
emp_no
phone_type
phone_number
and having entires
emp_no phone_type phone_number
1001 MOB 9451421452
1001 WEMG 235153654
1001 EMG 652341536
1002 MOB 9987526312
1003 WEMG 5332621456
1004 EMG 59612356
Now i want the output of values with phone type as MOB or WEMG in a single row with different columns
emp_no first_name middle_name last_name email mobile officeno
1001 mark null k [email protected] 9451421452 235153654
1002 john cena gary [email protected] 9987526312 null
1003 dany null craig [email protected] null 5332621456
1004 donald finn sian [email protected] null null
can i have any inputs to achive this???
Regards
$sid

Frank Kulash wrote:
sonething like this:Frank, you missed aggregate function (pivot requires one). However main thing is it will cause ORA-01748:
with table_1 as (
                 select 1001 emp_no,'mark' first_name,null middle_name,'k'last_name,'[email protected]' email from dual union all
                 select 1002,'john','cena','gary','[email protected]' from dual union all
                 select 1003,'dany',null,'craig','[email protected] null' from dual union all
                 select 1004,'donald','finn','sian','[email protected]' from dual
     table_2 as (
                 select 1001 emp_no,'MOB' phone_type,9451421452 phone_number from dual union all
                 select 1001,'WEMG',235153654 from dual union all
                 select 1001,'EMG',652341536 from dual union all
                 select 1002,'MOB',9987526312 from dual union all
                 select 1003,'WEMG',5332621456 from dual union all
                 select 1004,'EMG',59612356 from dual
SELECT     *
FROM     table_1      t1
JOIN     table_2      t2 ON t1.emp_no = t2.emp_no
PIVOT     (    max(t2.phone_number)
     FOR t2.phone_type IN ( 'MOB'   AS mob
                             , 'WEMG' AS wemg
        FOR t2.phone_type IN ( 'MOB'   AS mob
ERROR at line 19:
ORA-01748: only simple column names allowed hereYou need to:
with table_1 as (
                 select 1001 emp_no,'mark' first_name,null middle_name,'k' last_name,'[email protected]' email from dual union all
                 select 1002,'john','cena','gary','[email protected]' from dual union all
                 select 1003,'dany',null,'craig','[email protected] null' from dual union all
                 select 1004,'donald','finn','sian','[email protected]' from dual
     table_2 as (
                 select 1001 emp_no,'MOB' phone_type,9451421452 phone_number from dual union all
                 select 1001,'WEMG',235153654 from dual union all
                 select 1001,'EMG',652341536 from dual union all
                 select 1002,'MOB',9987526312 from dual union all
                 select 1003,'WEMG',5332621456 from dual union all
                 select 1004,'EMG',59612356 from dual
     table_3 as (
                 select t1.emp_no,first_name,middle_name,last_name,email,
                         phone_type,phone_number
                   FROM     table_1      t1
                   LEFT JOIN     table_2      t2 ON t1.emp_no = t2.emp_no
SELECT     *
FROM     table_3
PIVOT     (    max(phone_number)
     FOR phone_type IN ( 'MOB'   AS mob
                             , 'WEMG' AS wemg
    EMP_NO FIRST_ MIDD LAST_ EMAIL                     MOB       WEMG
      1004 donald finn sian [email protected]
      1003 dany        craig [email protected] null            5332621456
      1001 mark        k     [email protected]      9451421452 235153654
      1002 john   cena gary [email protected]    9987526312
SQL>SY.

Not able to color different rows with different colors in a column of table

Hi,
I am trying to to display different rows with different colors in a column of the table based on some decode condition.
I have gone through the following threads :
Can we colour the rows in the column of a table
Changing Color of a value in a column
This is what i have done :
1.Added the following code to custom.xss(changed the name to Custom.xss as suggested in one of the above threads) --- in path ---- jdev\myhtml\OA_HTML\cabo\styles
<style selector=".1">
<includeStyle name="DefaultFontFamily"/>
<property name="font-size">11pt</property>
<property name="font-weight">Bolder</property>
<property name="color">#008000</property>
<property name="text-indent">3px</property>
</style>
<style selector=".2">
<includeStyle name="DefaultFontFamily"/>
<property name="font-size">11pt</property>
<property name="font-weight">Bolder</property>
<property name="color">#FFFF00</property>
<property name="text-indent">3px</property>
</style>
2. Sql query of the VO is :
select comments,role ,decode(role,'REQUESTER','1','2') Colorattr from xxat_sars_action_history where request_id = :1 and event_name = :2 and action_code <> 'PENDING'
order by sequence_num desc
3. Coded the following in the process request of the controller:
OATableBean table = (OATableBean)webBean.findIndexedChildRecursive("CommentsTB");
OAMessageStyledTextBean roleBN = (OAMessageStyledTextBean)webBean.findIndexedChildRecursive("role");
OADataBoundValueViewObject cssjob = new OADataBoundValueViewObject(roleBN,"Colorattr");
roleBN.setAttributeValue(oracle.cabo.ui.UIConstants.STYLE_CLASS_ATTR, cssjob);
where 1 and 2 form the colors ( i have even tried with 'Red' and 'Yellow'...as it was not working replaced with 1 and 2)
4.The query returns data fine with corresponding 1 and 2 values.
But different colors are not getting reflecting on to the UI.
I am testing this on my local jdev.
Please do let me know if i am missing something.
Thanks ,
Sushma.

Any Clues please.....
Thanks,
Sushma.

How to show alternate rows in different colors?

How to show alternate rows in different colors?
Thanks

you should put these kind of stmt in the if condition for even row and odd row
<xsl:attribute xdofo:ctx="block" name="background-color">yellow</xsl:attribute>
this should help you
Re: About highlight row
http://blogs.oracle.com/xmlpublisher/2007/08/09
http://garethroberts.blogspot.com/2007/09/bi-publisher-color-list-and-cell.html

Add JTable Row Headers At The End Of The Rows(At Right)?

hi all
i got this example for adding JTable Row Headers,but it adds the headers at the left(beginning of the row)
and i want to add the headers at the end of the row(at right),any ideas how to do that?
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.AbstractListModel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListCellRenderer;
import javax.swing.ListModel;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;
* @version 1.0 11/09/98
class RowHeaderRenderer extends JLabel implements ListCellRenderer {
RowHeaderRenderer(JTable table) {
    JTableHeader header = table.getTableHeader();
    setOpaque(true);
    setBorder(UIManager.getBorder("TableHeader.cellBorder"));
    setHorizontalAlignment(CENTER);
    setForeground(header.getForeground());
    setBackground(header.getBackground());
    setFont(header.getFont());
public Component getListCellRendererComponent(JList list, Object value,
      int index, boolean isSelected, boolean cellHasFocus) {
    setText((value == null) ? "" : value.toString());
    return this;
class RowHeaderExample extends JFrame {
public RowHeaderExample() {
    super("Row Header Example");
    setSize(370, 150);
    ListModel lm = new AbstractListModel() {
      String headers[] = { "Row1", "Row2", "Row3", "Row4"};
      public int getSize() {
        return headers.length;
      public Object getElementAt(int index) {
        return headers[index];
    DefaultTableModel dm = new DefaultTableModel(lm.getSize(), 4);
    JTable table = new JTable(dm);
    table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
    table.setRowHeight(18);
    JList rowHeader = new JList(lm);
    rowHeader.setFixedCellWidth(50);
    rowHeader.setFixedCellHeight(18);
    rowHeader.setCellRenderer(new RowHeaderRenderer(table));
    JScrollPane scroll = new JScrollPane(table);
    scroll.setRowHeaderView(rowHeader);
    getContentPane().add(scroll, BorderLayout.CENTER);
public static void main(String[] args) {
    RowHeaderExample frame = new RowHeaderExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
    frame.setVisible(true);
}

fixed by:
list.setBackground(table.getTableHeader().getBackground());here's the full code:
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.ComponentOrientation;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.DefaultListModel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListCellRenderer;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;
* @version 1.0 11/09/98
class RowHeaderRenderer extends JLabel implements ListCellRenderer {
JTable table;
RowHeaderRenderer(JTable table) {
    this.table = table;
    JTableHeader header = table.getTableHeader();
    setOpaque(true);
    setBorder(UIManager.getBorder("TableHeader.cellBorder"));
    setHorizontalAlignment(CENTER);
    setForeground(header.getForeground());
    setBackground(header.getBackground());
    setFont(header.getFont());
public Component getListCellRendererComponent(JList list, Object value,
      int index, boolean isSelected, boolean cellHasFocus) {
    list.setBackground(table.getTableHeader().getBackground());
    setText((value == null) ? "" : value.toString());
    return this;
class RowHeaderExample extends JFrame {
public RowHeaderExample() {
    super("Row Header Example");
    setSize(370, 150);
    setLocationRelativeTo(null);
    DefaultListModel lstModel = new DefaultListModel();
    lstModel.addElement("Row 1");
    lstModel.addElement("Row 2");
    lstModel.addElement("Row 3");
    lstModel.addElement("Row 4");
    DefaultTableModel dm = new DefaultTableModel(lstModel.getSize(), 4);
    JTable table = new JTable(dm);
    table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
    table.setRowHeight(18);
    JList rowHeader = new JList(lstModel);
    rowHeader.setFixedCellWidth(50);
    rowHeader.setFixedCellHeight(18);
    rowHeader.setCellRenderer(new RowHeaderRenderer(table));
    JScrollPane scroll = new JScrollPane(table);
    scroll.setRowHeaderView(rowHeader);
    table.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
    scroll.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
    getContentPane().add(scroll, BorderLayout.CENTER);
public static void main(String[] args) {
    RowHeaderExample frame = new RowHeaderExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
    frame.setVisible(true);
}

Csv input adapter - read rows with different # of columns

I have a csv file which includes rows with different number of columns. I want to read all the rows( of different # of cols) into ONE stream only and then split into separate streams afterwards.
I saw that CSV File Input Adapter does not add missing columns with nulls by default. Is it possible somehow? How can I generate a workaround?
Thanks.

Hello,
The CSV Input Adapter expects to find a fixed number of fields. If you attach the input adapter to a stream/window with 3 fields, it will always try to read three fields. You can have missing data and this will be read into a column as a NULL value but the delimiters must still be there. For example:
1,1,1
2,2,2
3,3,3
4,,4
5,5,5
CREATE INPUT WINDOW inWindow SCHEMA (c1 integer, c2 integer, c3 integer) PRIMARY KEY (c1);
ATTACH INPUT ADAPTER File_Hadoop_CSV_Input2 TYPE toolkit_file_csv_input TO inWindow PROPERTIES csvExpectStreamNameOpcode = FALSE ,
dir = 'c:/temp' ,
file = 'test.csv' ,
csvDelimiter = ',' ;
A workaround you might consider is reading an entire line from your file into a stream with a single string column. The trick is that you have to choose a character for the column delimiter that you are certain will never show up in your data. Than once you have read that line into a stream, you can use the string functions to parse out the columns as needed:
CREATE INPUT STREAM csv_instream SCHEMA (
log_line_message string
// Choose a character that is certain to never show up in the data in order to read the entire line
// from the CSV file into a single column
ATTACH INPUT ADAPTER File_Hadoop_CSV_Input1 TYPE toolkit_file_csv_input TO csv_instream PROPERTIES
csvExpectStreamNameOpcode = FALSE ,
dir = 'C:/temp' ,
file = 'error_log' ,
csvDelimiter = '@' ;
// Parse out the individual columns
CREATE OUTPUT STREAM csv_outstream SCHEMA (
log_datetime timestamp ,
debug_level string ,
host string ,
message string ) AS SELECT
to_timestamp(substr(CI.log_line_message, 1, 24), 'DY MON DD HH24:MI:SS YYYY') as log_datetime,
substr(CI.log_line_message, patindex(CI.log_line_message, '[', 2)+1, (patindex(CI.log_line_message, ']', 2) - patindex(CI.log_line_message, '[', 2))-1) AS debug_level,
replace(substr(CI.log_line_message, patindex(CI.log_line_message, '[', 3)+1, (patindex(CI.log_line_message, ']', 3) - patindex(CI.log_line_message, '[', 3))-1), 'client ', '') AS host,
substr(CI.log_line_message, patindex(CI.log_line_message, ']', 3)+1, 500) AS message
FROM csv_instream CI
WHERE CI.log_line_message IS NOT NULL;
Thanks,
Neal

Grouping and UnGrouping of JTable Rows?

Hi,
Has somebody done Grouping and UnGrouping of JTable Rows as we find in MS-Excel.
Thanks & regards
blue

Hi,
Have anyone done something like this.
If u r not clear about the requirement:
Please see the screenshot uploaded at below url:
[http://www.geocities.com/coolneela/GroupableTable.JPG]
As shown the screenshot i want the Group 1 ,2,3 to be expandable and hideable i.e should behave like a Jtree node.....In rest of the column User can enter any input i.e for the columns A,B,C..
thanks & regards
Neel

Layout: multiple rows of different lengths

Ok for one im kinda new to java so all this swing stuff is still in a limited understanding for me. I am doing quite well with it, but i am trying to have a set of buttons, 50 in fact. There are like 10 rows. Now the problem is that the first 3 rows are different lengths such as:
x is a button
x x x x x
x x x x x x x
x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
x x x x x x x x x
sorry about the horrible illustration, what im trying to say is that the first row has lets say 5 buttons, then the second row has 6 then the 3rd has 4 and then the remaining ones have 5. How would i come about this. I have tried using multiple jpanels like in the code below, but only the last one is being displayed, how would i do this?
If you need more info post that you need it.
Thanks
CODE:
JPanel pane1 = new JPanel(new GridLayout(0, 1));
pane1.setBorder(BorderFactory.createEmptyBorder(30, 30, 10, 30));
          JPanel pane2 = new JPanel(new GridLayout(0, 5));
pane2.setBorder(BorderFactory.createEmptyBorder(30, 30, 10, 30));
          JPanel pane3 = new JPanel(new GridLayout(0, 6));
pane3.setBorder(BorderFactory.createEmptyBorder(30, 30, 10, 30));
          JPanel pane4 = new JPanel(new GridLayout(0, 4));
pane4.setBorder(BorderFactory.createEmptyBorder(30, 30, 10, 30));
          JPanel pane5 = new JPanel(new GridLayout(0, 5));
pane5.setBorder(BorderFactory.createEmptyBorder(30, 30, 10, 30));
          JTextArea displayBox = new JTextArea("Hello");
          pane1.add(displayBox);
          JButton[] buttons = new JButton[50];
          for (int x=0; x < 50; x++)
               buttons[x] = new JButton(normKeys[x]);
               if (x <= 4)
                    pane2.add(buttons[x]);
               else if (x <= 10)
                    pane3.add(buttons[x]);
               else if (x <= 14)
                    pane4.add(buttons[x]);
               else
                    pane5.add(buttons[x]);
          frame.getContentPane().add(pane1, BorderLayout.CENTER);
          frame.getContentPane().add(pane2, BorderLayout.CENTER);
          frame.getContentPane().add(pane3, BorderLayout.CENTER);
          frame.getContentPane().add(pane4, BorderLayout.CENTER);
          frame.getContentPane().add(pane5, BorderLayout.CENTER);
          frame.pack();
          frame.setVisible(true);

The GridBagLayout class is a flexible layout manager that aligns components vertically and horizontally, without requiring that the components be of the same size. Each GridBagLayout object maintains a dynamic, rectangular grid of cells, with each component occupying one or more cells, called its display area.

Sort jTable rows by column as Integer value

Hi all,
I have problem with sort jTable rows. I have some columns and in first are integer data. jTable sort that as String value..1,10,11,12....2,21, ...
How can I do that?
Thanks

In the future, please post Swing questions to the Swing forum: http://forum.java.sun.com/forum.jspa?forumID=57
What does the TableModel's getColumnClass method return for that column?

Colour in different ways, rows of different level of a hierarchy in WAD 7.0

Hi all,
Can anybody tell me how to colour in different ways, rows of different level of a hierarchy, in a web template? Im working with WAD 7.0
Thank you,
Best regards
Savino Pompa

Hi wand,
I know but i have to use Web template and i don't understand why By WAD 3.5 it was possible format layout through stylesheets and now by Wad BI i can't.
Thanks Savino

Copying multiple rows of different formatting

My table is a Cue Sheet for a theater production. I have 3 rows of various information that together describe everything for just 1 Cue. So these 3 rows of differently formatted information is all for just one "Cue row". So in essence, these 3 rows are sort of acting as 1 large row.
I need these three rows for each new cue that I add into the spreadsheet, so I will be copying these 3 rows, or 1 "cue row", over and over again for each new Cue I add. But the problem I'm having is that when I go to copy and paste the previous 3 rows (or the last "Cue Row") to create a new Cue, not all of the formatting copies. It looks like only 1 row's formatting copies.
So, is there any way to treat multiple rows as if they were just 1 row? Or in other words, how can you copy & paste multiple rows of various formatting?
I'd like this because I need the ability to add new "Cue rows" quickly without having to reformat every time I copy or duplicate. Any help or suggestions you have would be great. Thanks!

Jerrold Green1 wrote:
Please let us know what works for you after you give it a try. Your original question said nothing about borders. Borders will Copy, but they will only Paste as a new table, not as an insertion or addition, at least not in my experience.
My experience is different.
Assuming that cell B2 has a full 4 edges border whose thickness is 3 points and color red
that cell C2 has only the top border set to 3 points, color Blue.
If I select both, apply Copy Style then Paste Style in cell D4, I get the full borders in D4 and nothing in E4.
If I select only cell C2, Copy Style, Paste Style in G4, I get a full red border in G4
If I define cell B5 with a top border of 4 points Blue, when I apply Copy Style then Paste Style to G6, I get a full blue border in G6.
There is at least some inconsistencies between the behavior and what is written in the User Guide.
In this useful resource, we may read :
select the table or cells whose effects you want to reuse, choose Format > Copy Style,
select the table or cells you want to format, and then choose Format > Paste Style.
This is true, only if the cells from which we copied style (no s here) wore the same style.
It's not absurd as the items aren't named Copy Style(s), Paste Style(s)
but Copy Style, Paste Style.
What is written means that we may select several cells with the same effects (yes, one cell may wear several effects). Copy Style will copy these effects so that Paste Style will apply them to every selected target cells.
Its not clear for all of us and, as I described before, the result may be different than the described one.
So, my own way of use is to select a single cell, Copy its Style,
select the target range then apply Paste Style.
And even with this scheme, the result may be 'surprising'.
A funny example before sending this message.
To achieve that, I defined the cell E4 with a full 2 points blue border.
Then I copied its style and paste it to the range E4…E33
At first I tried to define only the top border assuming that I will get full borders as I get when pasting style to a single cell but, nada, I got nothing.
Then I defined a single red top border to H6 but Pasting its style to range D4…D33 didn't give red borders but remove the vertical left border of cells E4…E33.
So I defined a full red border to H6 and Pasted this Style to D4…D33 and to F4…F33
I tried to define green top and bottom borders to H10 and Paste this Style to the range E4…E33.
Of course, I didn't got green horizontal borders.
The four edges of these cells were cleared and reset to the original thin grey ones.
Bizarre, vous avez dit bizarre
Have fun with borders
Yvan KOENIG (VALLAURIS, France) lundi 7 mars 2011 16:17:59

Getting ClassCastException When Trying To Color JTable Row?

hi there
i'm trying to set color for JTable Rows Using the method prepareRenderer
and get the values of the second column which contains integer values
and if it contain 0 integer value set the color row as red
its already works and the row with 0 is set to red but when i try to select any cell in the table
i'm getting
java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integerat prepareRenderer
although the second row which i'm trying to test it's values is Integer not String????????????
here's the code:
import javax.swing.border.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.*;
import javax.swing.JFrame;
public class Column_Filter {
static JTable table;
static DefaultTableModel dtm;
    public static void main(String[] args) {
         String[]columns={"Name","Number","Price"};
         Object[][]data={ {"a",new Integer(5),new Integer(200)}
         ,{"b",new Integer(7),new Integer(400)}
         ,{"c",new Integer(0),new Integer(100)}
         ,{"d",new Integer(8),new Integer(800)}
         ,{"e",new Integer(3),new Integer(300)}
         dtm=new DefaultTableModel(data,columns);
                    table=new JTable(dtm){
                  public Class getColumnClass(int column)
                    return getValueAt(0, column).getClass();
                         public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
                    Component c = super.prepareRenderer(renderer, row, column);
                    if (!c.getBackground().equals(getSelectionBackground()))
                         Integer type = (Integer)getModel().getValueAt(row, 1);
                         if(type!=null)
                         c.setBackground(type==0 ? Color.RED : Color.WHITE );
                    else
                    c.setBackground(Color.white);
                    return c;
         TableColumnModel columnModel = table.getColumnModel();
         TableColumn col1 = columnModel.getColumn(1);
         col1.setCellEditor(new TableEditor());
         TableColumn col2 = columnModel.getColumn(2);
         col2.setCellEditor(new TableEditor());
         table.setPreferredScrollableViewportSize(new Dimension(280,160));
         JScrollPane scroll=new JScrollPane(table);
         JLabel label=new JLabel("Column Stuff",JLabel.CENTER);
         JPanel panel=new JPanel();
         panel.add(scroll);
        JFrame frame=new JFrame("Column Stuff");
        frame.add(label,BorderLayout.NORTH);
        frame.add(panel,BorderLayout.CENTER);
        frame.setSize(300,300);
        frame.setResizable(false);
        frame.setVisible(true);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
             table=new JTable();
               table.setModel(new DefaultTableModel(new Object [][][] {},new String [] {"Name", "Number","Price"}) {
            Class[] types = new Class [] {
                java.lang.String.class, java.lang.String.class,java.lang.String.class
            public Class getColumnClass(int columnIndex) {
                return types [columnIndex];
      class TableEditor extends DefaultCellEditor
          TableEditor()
               super( new JTextField() );
            setClickCountToStart(0);
          public boolean stopCellEditing()
                    String editingValue = (String)getCellEditorValue();
                if(!editingValue.equals("")){
             try
            int i = Integer.parseInt(editingValue);
            catch(NumberFormatException nfe)
            ((JComponent)getComponent()).setBorder(new LineBorder(Color.red));
            getComponent().requestFocusInWindow();
            JOptionPane.showMessageDialog(null,"Data Input Error","Error",JOptionPane.ERROR_MESSAGE);
            return false;
                else{
                 getComponent().requestFocusInWindow();
                 fireEditingCanceled();
                 JOptionPane.showMessageDialog(null,"Data Input Error","Error",JOptionPane.ERROR_MESSAGE);
              return false;
               return super.stopCellEditing();
               public Component getTableCellEditorComponent(
               JTable table, Object value, boolean isSelected, int row, int column)
               Component c = super.getTableCellEditorComponent(table, value, isSelected, row, column);
               ((JComponent)c).setBorder(new LineBorder(Color.BLACK));
               return c;
     }

hi again camickr
i changed the stopCellEditing as you mentioned
changed the getCellEditorValue to return an integer
and give exception and error message if the value can't be converted into integer(non numeric)
but the problem is when i run the program and change the value in any cell with numeric values
or with non numeric or not changing the value and press enter
it give the error message meaning it cannot convert the value to integer
even if enter an int or don't change the value ????????
here's what i did
import javax.swing.border.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.*;
import javax.swing.JFrame;
public class Column_Filter {
static JTable table;
static DefaultTableModel dtm;
    public static void main(String[] args) {
         String[]columns={"Name","Number","Price"};
         Object[][]data={ {"a",new Integer(5),new Integer(200)}
         ,{"b",new Integer(7),new Integer(400)}
         ,{"c",new Integer(0),new Integer(100)}
         ,{"d",new Integer(8),new Integer(800)}
         ,{"e",new Integer(3),new Integer(300)}
         dtm=new DefaultTableModel(data,columns);
                    table=new JTable(dtm){
                  public Class getColumnClass(int column)
                    return getValueAt(0, column).getClass();
                         public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
                    Component c = super.prepareRenderer(renderer, row, column);
                    if (!c.getBackground().equals(getSelectionBackground()))
                         Integer type = (Integer)getModel().getValueAt(row, 1);
                         c.setBackground(type==0 ? Color.RED : Color.WHITE );
                    return c;
         TableColumnModel columnModel = table.getColumnModel();
         TableColumn col1 = columnModel.getColumn(1);
         col1.setCellEditor(new TableEditor());
         TableColumn col2 = columnModel.getColumn(2);
         col2.setCellEditor(new TableEditor());
         table.setPreferredScrollableViewportSize(new Dimension(280,160));
         JScrollPane scroll=new JScrollPane(table);
         JLabel label=new JLabel("Column Stuff",JLabel.CENTER);
         JPanel panel=new JPanel();
         panel.add(scroll);
        JFrame frame=new JFrame("Column Stuff");
        frame.add(label,BorderLayout.NORTH);
        frame.add(panel,BorderLayout.CENTER);
        frame.setSize(300,300);
        frame.setResizable(false);
        frame.setVisible(true);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
             table=new JTable();
               table.setModel(new DefaultTableModel(new Object [][][] {},new String [] {"Name", "Number","Price"}) {
            Class[] types = new Class [] {
                java.lang.String.class, java.lang.Integer.class,java.lang.Integer.class
            public Class getColumnClass(int columnIndex) {
                return types [columnIndex];
      class TableEditor extends DefaultCellEditor
          TableEditor()
               super( new JTextField() );
            setClickCountToStart(0);
          public boolean stopCellEditing()
               try
                    Integer editingValue = (Integer)getCellEditorValue();
               catch(ClassCastException exception)
           //when i enter any value in any cell this code is executed even i enter an int or don't change the value
            ((JComponent)getComponent()).setBorder(new LineBorder(Color.red));
            getComponent().requestFocusInWindow();
            JOptionPane.showMessageDialog(null,"Data Input Error","Error",JOptionPane.ERROR_MESSAGE);
            return false;
               return super.stopCellEditing();
               public Component getTableCellEditorComponent(
               JTable table, Object value, boolean isSelected, int row, int column)
               Component c = super.getTableCellEditorComponent(table, value, isSelected, row, column);
               ((JComponent)c).setBorder(new LineBorder(Color.BLACK));
               return c;
     }

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