Setting value in a cell in JTable where editor for cell is a JComboBox
Hi,
I have a column in a JTable where it holds a comboBox . As the comboBox has different
values depending on the row I've a cell editor for each row. That's fine. My problem is that one of the
values on the comboBox launches a dialog where the user selects a new value to add to the comboBox.
The comboBox gets updated with this new value and I call setValueAt on the table. Both get updated
but the cell doesn't display the new value added in the JTable. I click it and the comboBox has the
value and I've to select it to get it displayed in the cell.
Here's the code for updating the tableModel -
public void updateCellDetails(String value, int row)
JComboBox combo = (JComboBox) rowEditor.getTableCellEditorComponent(
this,
value,
true,
row,
4);
if (combo != null)
combo.insertItemAt(value, combo.getItemCount() - 1);
combo.setSelectedItem(value);
rowEditor.setEditorAt(row, new DefaultCellEditor(combo));
MyTableModel tableModel = (MyTableModel) getModel();
tableModel.setValueAt(value, row, 4);
Thanks
Not sure if this'll help, but did you ever fire an editing-stopped event? If such an event is never fired, then editing-cancelled will be fired when you lose focus from the editor and the original value will be restored.
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JTable - different editor for each cell?
I have a JTable where two columns have combo box editors. When the user makes a selection in one combo box, the other combo box's options must change, as its allowable options depend on selection in the other combo box.
So in short, I need a way of changing the combo box options for ONLY a specific cell, NOT the entire column. I currently only know how to do this for a whole column:
// first put stuff in myComboBox, and then...
myJTable.getColumnModel().getColumn().setCellEditor( new DefaultCellEditor( myComboBox ) );
Is there any way to change the values in the combo box of a specific cell, rather than the entire column?
I apologize if this is a newbish question... I am fairly new to Swing, but I didn't see anything addressing this in the documentation.
-VernThe solution is like the one I gave you in one of
your previous postings. In that posting you wanted a
renderer for a specific cell. In this posting you
want a editor for a specific cell. The solution is
the same, only the method name changes.Okay, thanks. Sorry if it seems like I'm a slow learner. ;-)
-Vern -
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My problem has been solved.
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Thank's in Advance.Use the DefaultTableModel, then you don't have to write custom code for the setValueAt() method.
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I have a JTable where I want to set the color for specific cells. Is this possible to do, and if so, how?
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Hi there,
I want to provide individual cell editor for my JTable. Basically, my JTable shows property names and values. I want to show different cell editors for different properties.
I followed the advice in this post:
http://forum.java.sun.com/thread.jsp?forum=57&thread=423318
but I have a question:
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Also, how do I commit changes made by the user?
I am extremely confused.
Someone please help!
Thanks.Actually, that's what I am currently doing.
Here is my cell editor class:
public class ObjectPropertyEditor extends DefaultCellEditor
public ObjectPropertyEditor()
super(new JTextField());
Vector list = new Vector();
list.add("Yes");
list.add("No");
myCombo = new JComboBox(list);
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boolean isSelected, int row, int column)
String colName = (String)table.getValueAt(row,0);
if(colName.equalsIgnoreCase("Leaf-Node?")) //if it is the "Leaf" property, return the combo box as the editor
return myCombo;
else //for all other properties, use JTextField of the super class
return super.getTableCellEditorComponent(table,value,isSelected,row,column);
private JComboBox myCombo;
}The problem I have is that when I select a new item from the combo box, the new selection is not reflected in the tableModel. I don't know how I can achive that. I think I need the functionalities that DefaultCellEditor gives to its delegate when its constructor arguments is a combo box. But how can I get two different sets of functionalities (JTextField and JComboBox) ?
Please help!
Thanks. -
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Hi
Was hoping some one woudl be able to provide some help with this. I'm trying to create a renderer that will "shade" part of a JTable cell's background depending upon the value in the cell as a percentage (E.g. if the cell contains 0.25 then a quarter of the cell background will be shaded)
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The code for my renderer as it stands is:
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;
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double percentageValue;
double rectWidth;
double rectHeight;
JTable table;
int row;
int column;
int x;
int y;
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x = table.getCellRect(row, column, false).x;
y = table.getCellRect(row, column, false).y;
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import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
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public PercentageTestTable()
Object[] columnNames = new Object[]{"A","B"};
Object[][] tableData = new Object[][]{{0.25,0.5},{0.75,1.0}};
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test.setDefaultRenderer(Object.class, new PercentageRepresentationRenderer());
JScrollPane scroll = new JScrollPane();
scroll.getViewport().add(test);
add(scroll);
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testTable.pack();
testTable.setVisible(true);
testTable.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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RuanaeThis is an example I published some while ago -
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
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{1, new Double(10.0)},
{2, new Double(20.0)},
{3, new Double(50.0)},
{4, new Double(10.0)},
{5, new Double(95.0)},
{6, new Double(60.0)},
static final Object[] headers =
"One",
"Two",
public Fred120() throws Exception
super(new BorderLayout());
final DefaultTableModel model = new DefaultTableModel(tableData, headers);
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table.getColumnModel().getColumn(1).setCellRenderer( new LocalCellRenderer(120.0));
add(table);
add(table.getTableHeader(), BorderLayout.NORTH);
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private double v = 0.0;
private double maxV;
private final JPanel renderer = new JPanel(new GridLayout(1,0))
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super.paintComponent(g);
g.setColor(Color.CYAN);
int w = (int)(getWidth() * v / maxV + 0.5);
int h = getHeight();
g.fillRect(0, 0, w, h);
g.drawRect(0, 0, w, h);
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this.maxV = maxV;
renderer.add(this);
renderer.setOpaque(true);
renderer.setBackground(Color.YELLOW);
renderer.setBorder(null);
setOpaque(false);
setHorizontalAlignment(JLabel.CENTER);
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final JFrame frame = new JFrame("Fred120");
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frame.setContentPane(new Fred120());
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} -
To set a value in matrix cell which is linked
In sales order if I enter form no of TAX TAB as "form c" , each cell of the TAX Code column of the matrix of contents tab should be set the value as "CST". I have tried to set the value, but it is showing "Form item not editable". I have tried to make the cell as editable but still the error message is coming and it is not setting the defined value. How can this be solved?
Thankx in advanceHi Priya Manoj
Some notes you can find on this [Thread: Set Value in Itemcode in Purchase Order Form|Set Value in Itemcode in Purchase Order Form;.
There are I has posted some examples in vbcode.
Hope the notes can help you.
Regards
Sierdna S.
Edited by: Sierdna S on Oct 22, 2008 9:45 AM -
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create or replace
PACKAGE BODY TRIGGER_test as
function setStudentNum(sn in varchar2) return varchar2 as
Begin
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Exception
When OTHERS then
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3 function getStudentNum return varchar2;
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5 /
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3 function setStudentNum(sn in varchar2) return varchar2 as
4 Begin
5 staff_num := sn;
6 return ('Success');
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8
9 function getStudentNum return varchar2 as
10 Begin
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13 begin
14 staff_num := 'undefined';
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16 /
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undefined
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1234
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