The columns of a selected row in a JTable

Hello guys,
I am trying to loop through the columns of a selected row in a JTable. Any ideas how i can do that?
Thanks in advance for your replies.
Antana.

there is getValueAt(int row, int column) method in JTable.
will this help you?
and please post swing related queries to swing forum.
--Azodious_

Similar Messages

To change the font of a selected row in a Jtable

Hello,
Is it possible to change the font of a selected row in a jtable?
i.e. if all the table is set to a bold font, how would you change the font of the row selected to a normal (not bold) font?
thank you.

String will be left justified
Integer will be right justified
Date will be a simple date without the time.
As it will with this renderer.Only if your custom renderer duplicates the code
found in each of the above renderers. This is a waste
of time to duplicate code. The idea is to reuse code
not duplicate and debug again.
No, no, no there will be NO duplicated code.
A single renderer class can handle all types ofdata.
Sure you can fit a square peg into a round hole if
you work hard enough. Why does the JDK come with
separate renderers for Date, Integer, Double, Icon,
Boolean? So that, by default the rendering for common classes is done correctly.
Because its a better design then having code
with a bunch of "instanceof" checks and nested
if...else code.This is only required for customization BEYOND what the default renderers provide
>
And you would only have to use instanceof checkswhen you required custom
rendering for a particular classAgreed, but as soon as you do require custom
renderering you need to customize your renderer.
which you would also have to do with theprepareRenderer calls too
Not true. The code is the same whether you treat
every cell as a String or whether you use a custom
renderer for every cell. Here is the code to make the
text of the selected line(s) bold:
public Component prepareRenderer(TableCellRenderer
renderer, int row, int column)
Component c = super.prepareRenderer(renderer, row,
, column);
     if (isRowSelected(row))
          c.setFont( c.getFont().deriveFont(Font.BOLD) );
     return c;
}It will work for any renderer used by the table since
the prepareRenderer(...) method returns a Component.
There is no need to do any kind of "instanceof"
checking. It doesn't matter whether the cell is
renderered with the "Object" renderer or the
"Integer" renderer.
If the user wants to treat all columns as Strings or
treat individual columns as String, Integer, Data...,
then they only need to override the getColumnClass()
method. There is no change to the prepareRenderer()
code.
Have you actually tried the code to see how simple it
is?
I've posted my code. Why don't you post your solution
that will allow the user to bold the text of a Date,
Integer, and String data in separate column and then
let the poster decide.Well, I don't see a compilable, runnable demo anywhere in this thread. So here's one
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.Vector;
public class TableRendererDemo extends JFrame{
    String[] headers = {"String","Integer","Float","Boolean","Date"};
    private JTable table;
    public TableRendererDemo() {
        buildGUI();
    private void buildGUI() {
        JPanel mainPanel = (JPanel) getContentPane();
        mainPanel.setLayout(new BorderLayout());
        Vector headerVector = new Vector(Arrays.asList(headers));
         Vector data = createDataVector();
        DefaultTableModel tableModel = new DefaultTableModel(data, headerVector){
            public Class getColumnClass(int columnIndex) {
                return getValueAt(0,columnIndex).getClass();
        table = new JTable(tableModel);
//        table.setDefaultRenderer(Object.class, new MyTableCellRenderer());
        table.setDefaultRenderer(String.class, new MyTableCellRenderer());
        table.setDefaultRenderer(Integer.class, new MyTableCellRenderer());
        table.setDefaultRenderer(Float.class, new MyTableCellRenderer());
        table.setDefaultRenderer(Date.class, new MyTableCellRenderer());
        JScrollPane jsp = new JScrollPane(table);
        mainPanel.add(jsp, BorderLayout.CENTER);
        pack();
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    private Vector createDataVector(){
        Vector dataVector = new Vector();
        for ( int i = 0 ; i < 10; i++){
            Vector rowVector = new Vector();
            rowVector.add(new String("String "+i));
            rowVector.add(new Integer(i));
            rowVector.add(new Float(1.23));
            rowVector.add( (i % 2 == 0 ? Boolean.TRUE : Boolean.FALSE));
            rowVector.add(new Date());
            dataVector.add(rowVector);
        return dataVector;
    public static void main(String[] args) {
        Runnable runnable = new Runnable() {
            public void run() {
                TableRendererDemo tableRendererDemo = new TableRendererDemo();
                tableRendererDemo.setVisible(true);
        SwingUtilities.invokeLater(runnable);
    class MyTableCellRenderer 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){
                setFont(getFont().deriveFont(Font.BOLD));
            else{
                setFont(getFont().deriveFont(Font.PLAIN));
            if ( value instanceof Date){
                SimpleDateFormat formatter =(SimpleDateFormat) SimpleDateFormat.getDateInstance(DateFormat.MEDIUM);
                setText(formatter.format((Date)value));
            if(value instanceof Number){
               setText(((Number)value).toString());
            return this;
}Hardly a "bunch of instanceof or nested loops. I only used the Date instanceof to allow date format to be specified/ modified. If it was left out the Date column would be "18 Apr 2005" ( DateFormat.MEDIUM, which is default).
Cheers
DB

Overriding the SelectionForegroundColor of a selected row in a JTable

Hi
First, apologize for my poor English.
I looked for a similar topic in the forum, but coudn't find one.
What I want to achieve is this :
upon data contained in a column, I want the foreground color of the row to be gray. To do this, I write my own TableCellRenderer and it works perfectly except for the unique selected row of the table (single selection model) whose foreground color is the table's selectionForegroundColor.
I found a workaround...but the code is awful and leads to OutOfMemoryErrors.
Here is the code :
<
public Component getTableCellRendererComponent(JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row,
int column) {
     boolean isGrayColored = false;
     // some process to set whether the foreground color should be gray
     if (isGrayColored) {
          //table.setSelectionForeground(Color.gray);
          setForeground(Color.gray);
     } else {
          //table.setSelectionForeground(Color.black);
          setForeground((isSelected) ? table.getSelectionForeground() : table.getForeground());
     if (table != null && value == null && isSelected && hasFocus) {
          return this;
     } else {
          return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
>
If I uncomment the lines "table.setSelectionForeground(..", I got the expected result.
Thanks for your help
Regards,

Try this:
      public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
         if (isSelected && hasFocus) {
            setForeground(Color.black);
         } else {
            setForeground(Color.gray);
         setText((value==null)?"":""+value);
         return this;
      };o)
V.V.
PS: If it helps, don't forget the dukes!

How to display the column header in two rows?

Hi Experts,
I am using ALV_LIST_DISPLAY i neeed to display the column header in two rows.. How can i do that?
Ex: purchase order i need to display "purchase" in one row and "order" in second row.
Thanks in advance,
Sarath.j

REPORT zpwtest .
TYPE-POOLS slis .
DATA : layout TYPE slis_layout_alv .
CONSTANTS : c_len TYPE i VALUE 20 .
TYPES : BEGIN OF ty_t100          ,
          sprsl TYPE t100-sprsl   ,
          arbgb TYPE t100-arbgb   ,
          msgnr TYPE t100-msgnr   ,
          text TYPE t100-text    ,
          fline TYPE t100-text    ,
        END OF ty_t100            .
TYPES : BEGIN OF ty_wrd   ,
         text TYPE char20 ,
        END OF ty_wrd     .
DATA : it_t100     TYPE TABLE OF ty_t100 ,
       it_sentence TYPE TABLE OF ty_wrd ,
       wa_t100     TYPE ty_t100          ,
       wa_word     TYPE ty_wrd           ,
       v_repid     TYPE syst-repid       ,
       v_tabix     TYPE syst-tabix       .
DATA : it_fld TYPE slis_t_fieldcat_alv ,
       it_evt TYPE slis_t_event        ,
       wa_fld TYPE slis_fieldcat_alv   ,
       wa_evt TYPE slis_alv_event      .
INITIALIZATION .
v_repid = sy-repid .
START-OF-SELECTION .
* Get data
SELECT *
    INTO TABLE it_t100
    FROM t100
   WHERE sprsl = 'EN'
     AND arbgb = '00' .
LOOP AT it_t100 INTO wa_t100 .
    v_tabix = sy-tabix .
    CLEAR : it_sentence .
    CALL FUNCTION 'RKD_WORD_WRAP'
         EXPORTING
              textline = wa_t100-text
              outputlen = c_len
         TABLES
              out_lines = it_sentence.
    IF NOT it_sentence IS INITIAL .
      READ TABLE it_sentence INTO wa_word INDEX 1 .
      wa_t100-fline = wa_word-text .
      MODIFY it_t100 FROM wa_t100 INDEX v_tabix .
    ENDIF.
ENDLOOP.
* Prepare fieldcatelog
CLEAR wa_fld .
wa_fld-fieldname = 'SPRSL' .
wa_fld-ref_tabname = 'T100' .
wa_fld-ref_fieldname = 'SPRSL' .
APPEND wa_fld TO it_fld .
CLEAR wa_fld .
wa_fld-fieldname = 'ARBGB' .
wa_fld-ref_tabname = 'T100' .
wa_fld-ref_fieldname = 'ARBGB' .
APPEND wa_fld TO it_fld .
CLEAR wa_fld .
wa_fld-fieldname = 'MSGNR' .
wa_fld-ref_tabname = 'T100' .
wa_fld-ref_fieldname = 'MSGNR' .
APPEND wa_fld TO it_fld .
CLEAR wa_fld .
wa_fld-fieldname = 'FLINE' .
wa_fld-inttype      = 'CHAR' .
wa_fld-outputlen = 20 .
wa_fld-intlen    = 20.
wa_fld-seltext_l = 'Text' .
wa_fld-ddictxt = 'L' .
APPEND wa_fld TO it_fld .
* Get event.. we will handle BOFORE and AFTER line output
CALL FUNCTION 'REUSE_ALV_EVENTS_GET'
       IMPORTING
            et_events = it_evt.
READ TABLE it_evt INTO wa_evt
WITH KEY name = slis_ev_after_line_output .
wa_evt-form = slis_ev_after_line_output .
MODIFY it_evt FROM wa_evt INDEX sy-tabix .
READ TABLE it_evt INTO wa_evt
WITH KEY name = slis_ev_top_of_page .
wa_evt-form = slis_ev_top_of_page .
MODIFY it_evt FROM wa_evt INDEX sy-tabix .
layout-no_colhead = 'X' .
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
       EXPORTING
            i_callback_program = v_repid
            it_fieldcat        = it_fld
            is_layout          = layout
            it_events          = it_evt
       TABLES
            t_outtab           = it_t100.
*       FORM top_of_page                                              *
FORM top_of_page .
    uline .
    WRITE: / sy-vline     ,
           10 sy-vline    ,
           11 'line1'     ,
           31 sy-vline    ,
           37 sy-vline    ,
           58 sy-vline    .
    WRITE: / sy-vline     ,
           10 sy-vline    ,
           11 'line2'     ,
           31 sy-vline    ,
           37 sy-vline    ,
           58 sy-vline    .
    WRITE: / sy-vline     ,
           10 sy-vline    ,
           11 'line3'     ,
           31 sy-vline    ,
           37 sy-vline    ,
           58 sy-vline    .
ENDFORM.
*       FORM AFTER_LINE_OUTPUT                                        *
FORM after_line_output   USING rs_lineinfo TYPE slis_lineinfo .
CLEAR : it_sentence ,
          wa_t100     .
READ TABLE it_t100 INTO wa_t100 INDEX rs_lineinfo-tabindex .
CHECK sy-subrc = 0 .
CALL FUNCTION 'RKD_WORD_WRAP'
       EXPORTING
            textline = wa_t100-text
            outputlen = c_len
       TABLES
            out_lines = it_sentence.
DESCRIBE TABLE it_sentence LINES v_tabix .
CHECK v_tabix > 1 .
LOOP AT it_sentence INTO wa_word FROM 2 .
    WRITE: / sy-vline     ,
           10 sy-vline    ,
           31 sy-vline    ,
           37 sy-vline    ,
           38 wa_word-text ,
           58 sy-vline .
ENDLOOP.
ENDFORM .

How to delete the selected rows in a JTable on pressing a button?

How to delete the selected rows in a JTable on pressing a button?

You are right. I did the same.
Following is the code where some of them might find it useful in future.
jTable1.selectAll();
int[] array = jTable1.getSelectedRows();
for(int i=array.length-1;i>=0;i--)
DefaultTableModel model = (DefaultTableModel)jTable1.getModel();
model.removeRow(i);
}

How to resize the column header according to row data

Hi,
How can i resize the column header according to row date .. means if data is small header should be small and vice versa ,...
Any help is appreciated .. Snippet will be more helpful .
Thanks,
Shekhar

Oxley (binkley) blogged about this: http://binkley.blogspot.com/2006/01/getting-jtable-columns-widths-to-fit.html
Christian Ullenboom | tutego

Getting the Selected Row from a JTable

hi,
how Can i get the Selected row from a JTable
thanks...

You know that JTable class? Well, you see those methods in it called "getSelectedRow()" and "getSelectedRows()"...?

To get the unique id of the selected row in a JTable as in Database

Hi,
After fetching the recodrs from the Database, I have displayed them in a JTable. Though I fetched all the columns from db, I am displying only only 2 columns, say Name and Number neither of which is unique, however I have a unique ID for each record in the db. Now when I select some row in the JTable, I need to know its unique ID (the one which is in the db) which i have not displayed in the JTable.
Is there any API method that can store the unique ids of a table? Or how can this be done?
Thanks in Advance.

Although, if you don't want the Id visible in the table, then you need to remove its TableColumn from the TableColumnModel.
Then when you want to reference the id you need to use:
table.getModel.getValueAt(...);

How to get the attribute of a selected row in a label

Hi all,
I am using Jdeveloper 11.1.1.2 and ADF.
I have a table with two columns, Id and Name. Furthermore I have an outputText where I would like to see the field Name of the selected Row in the table.
How have I to set the property "value" of the outputText to do this?
Thank you
Andrea

Hi Andrea,
If you are using ADFBC, the easiest way is to drop the attribute(Say Name) from the data control palette as outputText component and add partialTriggers property of it to point to table id(to refresh the outputText whenever the row is selected in table)
Sireesha

Editing Cell Column of a selected row in UI table element.

Hi Experts,
I have a UI Table Element with three columns. First two columns are input fields in read only mode. Third column is a text edit field.
Now when I Select a row and press a button 'EDIT' i want that particular rows third column CELL alone to be in editable mode.
In order to achieve this, I created a WDY_BOOLEAN attribute in the same node which is used to bind the table. I binded this attribute to the READ ONLY property of third column.
In the EDIT button i wrote the following code.
lo_el_n_stp->set_attribute(
EXPORTING
name = 'A_EDIT'
value = ' ' ).
Here A_EDIT is the name of the attribute.
When i do this, my first rows third column is only going to EDIT mode and not the row which i selected.
Please tell me how to solve this problem.
Thanks in advance.

Hi thanks for your reply.I have already tried this, the problem is i am not getting the seleted row value by using the below code
l
lo_nd_node1->get_static_attributes(
IMPORTING
static_attributes = ). "here you will get the selected row
Its giving me the first row value.
Edited by: Delphi on Mar 11, 2010 11:52 AM

Change the background color of selected row in adf table

Hi,
Can somebody guide me in changing the background color of a row when its being selected. In my ADF table, one of the column is of type Command Link. So whenever i click this command link on any particular row that complete row color should change as an indication of that row being selected.
Please guide me to do this. I referred to other forum posts, but they couldnt meet my need.
Thanks
ri

Hi Frank,
you're right. This should work. But the result is not perfect from my point of view.
I use
<af:table ...>
<af:column ...>
    <af:outputText value="#{row.col1}" inlineStyle="#{row.mystyle}"/>
</af:column>
</af:table>and I get e.g. this in HTML:
<table ...>
<tr>
    <td class="af_column_cell-text OraTableBorder1111"><span style="font-weight:bold;">qqq</span></td>
</tr>
</table>while I would prefer to get somethig like this:
<table ...>
<tr>
    <td style="font-weight:bold;"><span>qqq</span></td>
</tr>
</table>, which looks much smarter. Is it possible?
Thanks,
Alexandre.

How to change the column value upto 68000 rows

Hi,
I want to change the column value.
I have table called RefDoc
Select distinct r.int_ref from refdoc r where r.int_ref like '\\dxb%'
Int_Re__f
\\dxb\Sample\BFE B777\2008\PO2025225.tif
\\dxb\Sample\RO\SFR\26-01-2009j\RO2022098.pdf
\\dxb\Sample\RO\SFR\26-01-2009j\RO2040831.pdf
\\dxb\Sample\BFE B777\2008\PO2025253.tif
\\dxb\Sample\RO\UM INV\26-01-2009\RO2018358.pdf
up to 68000 rows
I want to change to \\AUH instead of \\dxb.
I want the table like
Int_Re__f
\\AUH\Sample\BFE B777\2008\PO2025225.tif
\\AUH\Sample\RO\SFR\26-01-2009j\RO2022098.pdf
\\AUH\Sample\RO\SFR\26-01-2009j\RO2040831.pdf
\\AUH\Sample\BFE B777\2008\PO2025253.tif
\\AUH\Sample\RO\UM INV\26-01-2009\RO2018358.pdf
Thanks
Nihar

user REPLACE function and change it
UPDATE refdoc
SET int_ref = REPLACE(int_ref, '\\dxb\', '\\AUH\')
WHERE int_ref like '\\dxb\%'

Apply distinct to all the columns in a select list

Select distinct name, date , venue , duration from tableA
the above query distinct onlu the first column in the select list but is it possible to distinct all the columns.
current out put is
1 , raj, 25-may-2009, uk , 10
1 , raj, 25-may-2009, usa , 10
1 , raj, 25-may-2009, uk , 20
requried output....
1 , raj, 25-may-2009, uk , 10
the first found row is enogh...
thanks in advance :)
raj

But all these tree rows are distinct. Doesn't it? Why you want to take only first row? What's the logic?
Kamran Agayev A. (10g OCP)
http://kamranagayev.wordpress.com
[Step by Step install Oracle on Linux and Automate the installation using Shell Script |http://kamranagayev.wordpress.com/2009/05/01/step-by-step-installing-oracle-database-10g-release-2-on-linux-centos-and-automate-the-installation-using-linux-shell-script/]

How do I get the values from a selected row.

I am using JDeveloper 9.0.5. On my page, I have placed a button within a table. The button has been assigned an event. The event is within my Action class. This class implements DataAction and has overriden the
processComponentEvents(DataActionContext actionContext);
method.
Question: While I am within the processComponentEvents method, is it possible to obtain the values of selected row?

Good Morning Jeffery,
First off thanks for your clear explanation. I have a few related questions as noted from your response:
There are two ways to communicate the desired model row between the UIX view and the struts controller. One way is to use the singleSelection component in your table and put your buttons in the singleSelection's contents.
When the user selects the radio button for a particular row and then clicks on one the buttons, a built in event handler in UIX will set the current row in the model to be the user selected row. Therefore, your Struts action can operate on the currently selected model row.
When you drop a UIX table from the data control palette it is automatically set up in this way (with a single selection).
Ok, Lets say that i've set everything up as you described. Not lets say that the button was pressed and I hit the overriddenprotected void processComponentEvents(DataActionContext actionContext) throws IOException, ServletException ;
When I look at the request object, I do not see the values. How do I get access to the rowkey at this point?
Some people, however, want to actually render buttons in their table rows, and have those buttons initiate an action on their row. If you are doing this, then you need to pass the row id to your struts action as a parameter, which means that you need to know the row id when you are rendering a button for a given row. There is an EL expression that will return the row-id for the current row, it is:
${uix.current.rowKeyStr}
which is not so obvious or well documented in the preview release (sorry) but should be for the production release.
A generic code snippet would go a long way to shedding some light on that. I guess I am use to using JDeveloper 9.0.3. It seems,"to me", that JDev 9.0.5 has put a completely new twist on things. I find myself wondering when I can use the 9.0.3 syntax and when
should not. If your team has any short source toys around which demonstrated using rowkeys, or accessing the internal parts of the
struts controller, I would find that invaluable. It dose not matter if this information is documented.
Thank you

How to get the values of last selected row in Table?

Hi,
I have one editable table , where i have Create, Delete and Commit operation on it.
When i am clicking on Create button it add new row to my table.
But I want the value of my last selected row from the table in my Bean.
Can anyone suggest me please....... its urgent
Jdev:- 11.1.1.0.3
Thanks,
Ramit

just get this code empTable is the table binding
                RowKeySet rks = new RowKeySetImpl();
                CollectionModel model = (CollectionModel)empTable.getValue();
      RowKeySet selectedRowKeys = empTable.getSelectedRowKeys();
      if (selectedRowKeys != null)
            Iterator iter = selectedRowKeys.iterator();
            if (iter != null && iter.hasNext())
              empTable.setRowKey(iter.next());
              model.setRowIndex(empTable.getRowIndex());
              Object key = model.getRowKey();
              rks.add(key);
                empTable.setSelectedRowKeys(rks);
      AdfFacesContext.getCurrentInstance().addPartialTarget(empTable);
    public void setEmpTable(RichTable empTable) {
        this.empTable = empTable;
    public RichTable getEmpTable() {
        return empTable;
    }

The columns of a selected row in a JTable

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