Can we create JTable with multiple rows with varying number of columns ?

Hi All,
I came across a very typical problem related to JTable. My requirement is that cells should be added dynamically to the JTable. I create a JTable with initial size of 1,7 (row, columns) size. Once the 7 columns are filled with data, a new row should be created. But the requirement is, the new row i.e. second row should have only one cell in it initially. The number of cells should increase dynamically as the data is entered. The table is automatically taking the size of its previous row when new row is added. I tried by using setColumnCount() to change the number of columns to '1' for the second row but the same is getting applied to the first row also.
So can you please help me out in this regard ? Is it possible to create a JTable of uneven size i.e. multiple rows with varying number of columns in each row ?
Thanks in Advance.

Well a JTable is always going to paint the same number of columns for each row. Anything is possible if you want to rewrite the JTable UI to do this, but I wouldn't recommend it. (I certainly don't know how to do it).
A simpler solution might be to override the isCellEditable(...) method of JTable and prevent editing of column 2 until data in column 1 has been entered etc., etc. You may also want to provide a custom renderer that renderers the empty column differently, maybe with a grey color instead of a white color.

Similar Messages

Web dynpro screen with multiple rows with columns that can be edited

Web dynpro screen with multiple rows with columns that can be edited individually:
Hi
I am busy creating a screen in web dynpro for ABAP which we would like to make available via Portal ESS (Portal 7).
I need to add 'n type of table (or almost something like Excel) or something in which someone can type a few paycode numbers (there should be lets say 10 blank rows in which info can be typed in and if I click on a button or so, more rows must be added if necessary. Then in the other colums stuff like amounts must be entered which one should also be able to edit then and there.
Can anyone assist in what I can use for this? There does not seem to be some existing element that I can use.
Help will be appreciated.
Regards
Debbie

Hi Debbie,
Whiel Creating table you need to be care full that use chose INPUT FIELD as the CELL EDITOR. Just guessing that if ur table is not editable u might have choosen TextView as default cell editor type.
check link for details on TABLE UI
[http://help.sap.com/saphelp_erp2005/helpdata/EN/b5/ac884118aa1709e10000000a155106/frameset.htm]
easy way is to first add UI ELEMENT TABLE to your VIEW, then right click over it & select create binding from context. After you have a pop up where you can select what columns you want what should be its cell editor etc.
Greetings
Prashant

I have regisetred a EIT with multiple rows Yes, can we change it NO now.

I have registered a EIT with multiple rows Yes, can we change it NO now.

Hi,
Yes you can change this through back-end.
Register extra information (types) concurrent program run the package HR_REGISTER_EITS and insert definintion of an EIT in respective INFO_TYPES tabel for example if person EIT then definition is stored in PER_PEOPLE_INFO_TYPES.
In this table we have column MULTIPLE_OCCURENCES_FLAG which can have value as Y or N, Y - Multiple entries allowed, N - Multiple entries not allowed.
You need to update the value of this flag to N for your EIT definition and you are done.
Thanks,
Sanjay

JTable with Multiple Row Header

well, Im do an application thats need formated ISOS Sheets, and most of them have a Table with Multiple Row Header , and Groupable Header, and both of them. I have the .java and in the class MultipleRowHeaderExample calls a class AttributiveCellTableModel for setColumnIdentifiers() and setDataVector() the cue is why this print stack :
Exception in thread "main" java.lang.StackOverflowError
     at java.util.Vector.<init>(Unknown Source)
     at java.util.Vector.<init>(Unknown Source)
     at jp.gr.java_conf.tame.swing.table.AttributiveCellTableModel.setDataVector(AttributiveCellTableModel.java:54)
     at javax.swing.table.DefaultTableModel.setColumnIdentifiers(Unknown Source)
     at jp.gr.java_conf.tame.swing.table.AttributiveCellTableModel.setDataVector(AttributiveCellTableModel.java:55)
     at javax.swing.table.DefaultTableModel.setColumnIdentifiers(Unknown Source)
     at jp.gr.java_conf.tame.swing.table.AttributiveCellTableModel.setDataVector(AttributiveCellTableModel.java:55)
     at javax.swing.table.DefaultTableModel.setColumnIdentifiers(Unknown Source)
     at jp.gr.java_conf.tame.swing.table.AttributiveCellTableModel.setDataVector(AttributiveCellTableModel.java:55)
     at javax.swing.table.DefaultTableModel.setColumnIdentifiers(Unknown Source)
     at jp.gr.java_conf.tame.swing.table.AttributiveCellTableModel.setDataVector(AttributiveCellTableModel.java:55)
     at javax.swing.table.DefaultTableModel.setColumnIdentifiers(Unknown Source)
     at jp.gr.java_conf.tame.swing.table.AttributiveCellTableModel.setDataVector(AttributiveCellTableModel.java:55)
     at javax.swing.table.DefaultTableModel.setColumnIdentifiers(Unknown Source)
     at jp.gr.java_conf.tame.swing.table.AttributiveCellTableModel.setDataVector(AttributiveCellTableModel.java:55)
     at javax.swing.table.DefaultTableModel.setColumnIdentifiers(Unknown Source)
.if in main class, have initialized the data, and column vars
public class MultipleRowHeaderExample extends JFrame {
Object[][] data;
Object[] column;
JTable table;
MultiSpanCellTable fixedTable;
public MultipleRowHeaderExample() {
    super( "Multiple Row Header Example" );
    setSize( 400, 150 );
    data = new Object[][]{
        {"SNo."    ,"" },
        {"Name"    ,"1"},
        {""        ,"2"},
        {"Language","1"},
        {""        ,"2"},
        {""        ,"3"}};
    column = new Object[]{"",""};
    AttributiveCellTableModel fixedModel = new AttributiveCellTableModel(data, column) {
      public boolean CellEditable(int row, int col) {
        return false;
    };

What's the code in AttributiveCellTableModel?
* (swing1.1beta3)
package jp.gr.java_conf.tame.swing.table;
import java.util.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
* @version 1.0 11/22/98
public class AttributiveCellTableModel extends DefaultTableModel {
protected CellAttribute cellAtt;
public AttributiveCellTableModel() {
    this((Vector)null, 0);
public AttributiveCellTableModel(int numRows, int numColumns) {
    Vector names = new Vector(numColumns);
    names.setSize(numColumns);
    setColumnIdentifiers(names);
    dataVector = new Vector();
    setNumRows(numRows);
    cellAtt = new DefaultCellAttribute(numRows,numColumns);
public AttributiveCellTableModel(Vector columnNames, int numRows) {
    setColumnIdentifiers(columnNames);
    dataVector = new Vector();
    setNumRows(numRows);
    cellAtt = new DefaultCellAttribute(numRows,columnNames.size());
public AttributiveCellTableModel(Object[] columnNames, int numRows) {
    this(convertToVector(columnNames), numRows);
public AttributiveCellTableModel(Vector data, Vector columnNames) {
    setDataVector(data, columnNames);
public AttributiveCellTableModel(Object[][] data, Object[] columnNames) {
    setDataVector(data, columnNames);
public void setDataVector(Vector newData, Vector columnNames) {
    if (newData == null)
      throw new IllegalArgumentException("setDataVector() - Null parameter");
    dataVector = new Vector();
    setColumnIdentifiers(columnNames);
    dataVector = newData;
    cellAtt = new DefaultCellAttribute(dataVector.size(),
                                       columnIdentifiers.size());
    newRowsAdded(new TableModelEvent(this, 0, getRowCount()-1,
           TableModelEvent.ALL_COLUMNS, TableModelEvent.INSERT));
@Override
public void setColumnIdentifiers(Vector arg0) {
          // TODO Auto-generated method stub
          super.setColumnIdentifiers(arg0);
public void addColumn(Object columnName, Vector columnData) {
    if (columnName == null)
      throw new IllegalArgumentException("addColumn() - null parameter");
    columnIdentifiers.addElement(columnName);
    int index = 0;
    Enumeration enumeration = dataVector.elements();
    while (enumeration.hasMoreElements()) {
      Object value;
      if ((columnData != null) && (index < columnData.size()))
       value = columnData.elementAt(index);
      else
     value = null;
      ((Vector)enumeration.nextElement()).addElement(value);
      index++;
    cellAtt.addColumn();
    fireTableStructureChanged();
public void addRow(Vector rowData) {
    Vector newData = null;
    if (rowData == null) {
      newData = new Vector(getColumnCount());
    else {
      rowData.setSize(getColumnCount());
    dataVector.addElement(newData);
    cellAtt.addRow();
    newRowsAdded(new TableModelEvent(this, getRowCount()-1, getRowCount()-1,
       TableModelEvent.ALL_COLUMNS, TableModelEvent.INSERT));
public void insertRow(int row, Vector rowData) {
    if (rowData == null) {
      rowData = new Vector(getColumnCount());
    else {
      rowData.setSize(getColumnCount());
    dataVector.insertElementAt(rowData, row);
    cellAtt.insertRow(row);
    newRowsAdded(new TableModelEvent(this, row, row,
       TableModelEvent.ALL_COLUMNS, TableModelEvent.INSERT));
public CellAttribute getCellAttribute() {
    return cellAtt;
public void setCellAttribute(CellAttribute newCellAtt) {
    int numColumns = getColumnCount();
    int numRows    = getRowCount();
    if ((newCellAtt.getSize().width != numColumns) ||
        (newCellAtt.getSize().height != numRows)) {
      newCellAtt.setSize(new Dimension(numRows, numColumns));
    cellAtt = newCellAtt;
    fireTableDataChanged();
public void changeCellAttribute(int row, int column, Object command) {
    cellAtt.changeAttribute(row, column, command);
public void changeCellAttribute(int[] rows, int[] columns, Object command) {
    cellAtt.changeAttribute(rows, columns, command);
}that's it

Select or deselect multiple rows with one single selection event

Does anyone know how to create a JTable which can select or deselect multiple rows with one single selection event in JTable. Fore example, if the table has
row1
row2
row3
row4
row5
row6
What I need is when user select row1 or row2, both row1 and row2 should be set to be selected. Then if user press CTRL and click one of row3 or row4, both of them should be selected including the previouse selected row1 and row2.
For deselection, if row1 and row2 are selected, when users deselect one of row1 or row2, both of them should be deselected.
Hopefully someone can give me a hint.

Here is a partial solution using a JList. Only one line gets highlighted when the user makes a selection in the list. But, two lines are returned. There is a blank line between every two lines.
     private void addLineToList() {
          String a = f_one.getText();
          String b = f_two.getText();
          if (a.length() == 0) {
               Utils.showInformationMessage("Item field is empty.");
               f_one.requestFocusInWindow();
               return;
          if (b.length() == 0) {
               Utils.showInformationMessage("Match field is empty.");
               f_two.requestFocusInWindow();
               return;
          model.addElement("item: " + a);
          model.addElement("match: " + b);
          model.addElement(" ");
          int size = model.getSize();
          pairList.setSelectedIndex(size - 3);
          f_one.setText("");
          f_two.setText("");
          f_one.requestFocusInWindow();
     private void editList() {
          if (pairList.getSelectedValue().toString().equalsIgnoreCase(" ")) {
               Toolkit.getDefaultToolkit().beep();
               f_one.requestFocusInWindow();
               return;
          if (!f_one.getText().equals("")) {
               int result = JOptionPane.showConfirmDialog(this,
               "The Item field contains text. Replace the text?",
               "Flash Card Activity", JOptionPane.YES_NO_OPTION,
               OptionPane.INFORMATION_MESSAGE);
               if (result == JOptionPane.NO_OPTION) return;
          if (!f_two.getText().equals("")) {
               int result = JOptionPane.showConfirmDialog(this,
               "The Match field contains text. Replace the text?",
               "Flash Card Activity", JOptionPane.YES_NO_OPTION,
               JOptionPane.INFORMATION_MESSAGE);
               if (result == JOptionPane.NO_OPTION) return;
          String item = "";
          String match = "";
          int index = pairList.getSelectedIndex();
          String choice = model.getElementAt(index).toString();
          if (choice.startsWith("item")) {
               item = choice;
               match = model.getElementAt(index + 1).toString();
               model.remove(index);
               model.remove(index);
               model.remove(index);
          else {
               item = model.getElementAt(index - 1).toString();
               match = choice;
               model.remove(index + 1);
               model.remove(index);
               model.remove(index - 1);
          int size = model.getSize();
          if (size > 2) {
               pairList.setSelectedIndex(size - 2);
          f_one.setText(item.substring(6));
          f_two.setText(match.substring(7));
          f_one.requestFocusInWindow();
     }

Loading xml file with multiple rows

I am loading data from xml files using xsl for transformation. I have created xsl's and loaded some of the data. In an xml file with multiple row, it's only loading one (the first) row. Any idea how I can get it to read and load all the records in the file???

Could some please help me with the above. I desparately need to move forward.

Downloading .xls file with multiple rows and Columns

Hi ALL,
I need to genarate .xls file with multiple rows and and Columns and sent as an email.Since our customer having Problem with .CSV files need to genarate .XLS file.
Please do the needful.
Thanks
Madhu

Hi Madhu,
You might also consider using Excel Spreadsheet XML as the target structure (namespace is urn:schemas-microsoft-com:office:spreadsheet). When you double-click the resulting xml on a PC it automatically opens with Excel. So, users don't see a difference. It will open up a lot of options with formatting including creating multiple worksheets if you wanted to. Best of all you can stick with XML.
See my response in this thread:
Re: Convert XML data into XLS
Thanks,
-Russ

Watermark with multiple rows of text, Is it possible?

Hi everyone,
One of our clients want the whole page filled with watermark with multiple rows of text, I cannot find related properties on the watermark configuration page, is it possible?
Thank you in advance.

Multi-line Dynamic Watermarks are available from ES3 onwards. You can create multiple Watermark text elements to have more than one line in the Watermarks. Please see http://help.adobe.com/en_US/livecycle/10.0/AdminHelp/WSb96e41f8a4ca47a94897a78313098c91af6 -8000.html
Regards,
Neerav

Editable table with multiple rows

Hi All!
We're trying to develop some application in VC 7.0. That application should read data from some R/3 tables (via standard and custom functional modules), then display data to user and allow him/her to modify it (or add some data into table rows), and then save it back to R/3.
What is the best way to do that?
There's no problem with displaying data.
But when I try to add something to table (on portal interface), I'm able to use only first row of the table... Even if I fill all fields of that row, I'm not able to add data to second row, etc.
Second question. Is it possible to display in one table contents of output of several BAPIs? For example we have three bapis, one displaying user, second displays that user's subordinates, and the third one - that user's manager. And we want one resulting table...
And last. What is the best way to submit data from table view in VC (portal) to R/3 table? I understand that we should write some functional module, that puts data to R/3. I'm asking about what should be done in VC itself. Some button, or action...
Any help will be appreciated and rewarded :o)
Regards,
DK

Here are some former postings:
Editable table with multiple rows
and
Editable table with multiple rows
Are you on the right SP-level?
Can you also split up your posting: one question, one posting? This way you get faster answers, as people might just browse the headers.

Table row with multiple row

Hi All,
I am using NWDS 2004
I want to have a table with multiple rows in a row.
Can any one help ?
Thanks

hi Akhilesh,
Use tree table for your requirement.
[Tree Table Tutorial|https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/de59f7c2-0401-0010-f08d-8659cef543ce]
Hope this helps!
Monalisa

Splitting a message with multiple rows from the JDBC Adapter

Hi,
I'd like to split the resultset message with multiple row elements and process each row separately..
Does someone have this experience?
Thanx, Peter

Hi Chandrasekhar,
I tried to follow your advise, but I'm not able to complete the process correctly.
Let me explain my process:
First - output from the JDBC adapter goes into the first receive step. Of course, there are multiple ROW elements. (Should be marked the ingoing message marked in the container as Multiline??)
The next should be the transformation:
format of the source message is like
<message>
<row>
<column>w</column>
</row>
<row>
<column>w</column>
</row>
</message>
In the message I have the ROW element as 0..unbounded
and <column> element exactly 1
This message should be mapped to multiple messages of the format:
<message>
<value>w</value>
</message>
How should be the mapping be done?
Is it N:1 or 1:N (because in another thread there was an 1:N mapping advised)
Then (as you say) should follow the Block step:
Which message (container element) should be marked as Multiline? And what does it mean: Current Message?
Can you give me some advise, when and how to use the multiline mark?
Thanx a lot, Peter

Updating Multiple Rows With A Sequence

I'm trying to update multiple rows of data in one column based on if its date is greater than a certain date. Starting with the lowest date from those dates I'll give it a 2000 and every ascending date from that point will be another number in sequence (2001, 2002, 2003, etc.).
Apologization Edit:
11g XE
Edited by: spysmily1 on Jun 4, 2012 5:50 PM
Edited by: spysmily1 on Jun 4, 2012 5:51 PM

I would use a counter and start at a specific number. Then I would try to keep updating with this number and incrementing each time. The part I can't quite grasp is how to use this number with the lowest record and apply this sequence to each date that ascends from there. What I was going to try to come up with is something like:
DECLARE
counter := 2000;
BEGIN
loop
update table_name
set column_name = counter
where date > specified date;
counter := counter + 1;
end loop;
This is my first thought but I couldn't see a way to just update the first one that is greater than the specified date and then keep cycling through the dates until the last date(most recent). I know I would need a loop but what can I set that loop to so it would know when to stop. I could use a variable I know is less than the total amount that need to be altered.
Edited by: spysmily1 on Jun 4, 2012 6:21 PM

How can I create a new TC backup with ethernet, so I don't have to wait two days for a new wireless backup?

How can I create a new TC backup with ethernet, so I don't have to wait two days for a new wireless backup?
Several times in the last year, I've gotten a message that Time Machine needs to completely redo my backup. Using the wireless connection, this takes almost two days. Is there a way to do the backup with ethernet and then switch back to wireless? Thanks.

May I know what is needed to make sure the MacBook is able to see Time Capsule on ethernet?
Connect an Ethernet cable from one of the LAN <-> ports on the 2Wire gateway to the WAN port (circle of dots icon) on the Time Capsule.
If AirPort Utility cannot "see" the Time Capsule now, you will need to perform a "hard reset" by holding in the reset button for 7-8 seconds or so and then reconfigure the Time Capsule. You can use the same Time Capsule name and password, etc. as before.
Configure the Time Capsule to "Create a wireless network" and select the Bridge Mode option when it appears during the setup using AirPort Utility.
Once the Time Capsule is configured, restart the entire network again. Power down everything, start the 2Wire first and then start each other device after that one at a time about a minute apart.
Now you can connect your Mac directly to one of the LAN <-> ports on the Time Capsule for the backup using another Ethernet cable. In general, about 20-25 GB per hour will transfer.
The Time Capsule will broadcast a much faster wireless network than the 2Wire can provide, so you might want to leave the setup "as is" for awhile after the first backup is complete. If you decide to use the Time Capsule as your main wireless access point, you would want to turn the wireless off on the 2Wire since two wireless networks in close proximity can create interference problems.
Or, if you want to use the wireless on the 2Wire, you could turn off the wireless on the Time Capsule. Then backups will occur over the 2Wire wireless, or over Ethernet.
I don't really recommend the "Join a wireless network" setting on the Time Capsule for most users, but you could go back to that setup as well if you want after the first backup is complete.

TO DRAW A TABLE WITH MULTIPLE ROWS AND MULTIPLE COLOUMNS IN FORM

Hi,
How to draw a table with multiple rows and columns seperated by lines in form printing?

check this
http://sap-img.com/ts003.htm
Regards
Prabhu

Can we create the Application name starting with Numerics

Hi All,
can we create an application name stating with number like 1234Samsung.
Also can we use the special characters between them.
Also are there any rules for creating database names other than maximum 8 characters limit.
Regards

Hi,
1. You can create starting with numerics, 123samsu.
2. samsung cannot complete ,the know reason is exceeding 8
Sandeep Reddy Enti
HCC
http://hyperionconsultancy.com/

Can we create JTable with multiple rows with varying number of columns ?

Similar Messages

Maybe you are looking for