Solved

JRadioButtons in a JTable

Posted on 2006-07-17
8
676 Views
Last Modified: 2012-06-22
Hi all,

I'm looking at this example on objects website:
http://www.objects.com.au:8088/objects/java/examples/swing/RadioButtonTableCell2.do

But it does not quite work. When you click on a radiobutton the first time, everything is deselected, and then on the second click it selects the JRadioButton. Can somebody please tell me how to sort this, since I'm just not seeing it.

Thanks in advance
0
Comment
Question by:riaancornelius
  • 3
  • 3
  • 2
8 Comments
 
LVL 35

Expert Comment

by:girionis
ID: 17120774
I cannot see the link, I am getting a The requested URL could not be retrieved error. Which table are you referring to, the firts or second from here: http://www.esus.com/javaindex/j2se/jdk1.2/javaxswing/editableatomiccontrols/jtable/jtableradiocell.html ?
0
 
LVL 9

Author Comment

by:riaancornelius
ID: 17120806
the second
0
 
LVL 92

Accepted Solution

by:
objects earned 500 total points
ID: 17120866
those examples are getting so out of date
i've updated a few but that ones stiull in the works.

what you basically need to do is change the editor to the follwoing

  class RadioButtonEditor extends AbstractCellEditor implements TableCellEditor {
    RadioButtonPanel panel;

    public RadioButtonEditor(RadioButtonPanel panel) {
      this.panel = panel;
      ButtonGroup buttonGroup = new ButtonGroup();
      JRadioButton[] buttons  = panel.getButtons();
      for (int i=0; i<buttons.length; i++) {
        buttonGroup.add(buttons[i]);
      }                  
    }

    public Component getTableCellEditorComponent(JTable table, Object value,
                   boolean isSelected, int row, int column) {
      if (value instanceof Integer) {
        panel.setSelectedIndex(((Integer)value).intValue());
      }      
      return panel;
    }

    public Object getCellEditorValue() {
      return new Integer(panel.getSelectedIndex());
    }
  }

0
 
LVL 92

Expert Comment

by:objects
ID: 17120873
btw, correct url is

http://www.objects.com.au/java/examples/swing/RadioButtonTableCell2.do

but that may be changing soon, as we have a new site release in the pipeline.
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 35

Expert Comment

by:girionis
ID: 17120926
riaancornelius,
> the second

Ok I see what you mean. Try objects' suggestion, it should work.
0
 
LVL 9

Author Comment

by:riaancornelius
ID: 17121010
Objects, your suggestion works within the current row, but as soon as the row loses focus, both my radiobuttons are selected. Is there maybe a problem in the renderer?
0
 
LVL 92

Assisted Solution

by:objects
objects earned 500 total points
ID: 17121040
try adding the radio buttons to a button group in the panel ctor
0
 
LVL 9

Author Comment

by:riaancornelius
ID: 17121066
lol, I just tried that. Yes, this sorts it:

class RadioButtonPanel extends JPanel {
    JRadioButton[] buttons;
   
    public RadioButtonPanel(String[] str) {
        setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
        buttons = new JRadioButton[str.length];
        ButtonGroup buttonGroup = new ButtonGroup();
        for (int i=0; i<buttons.length; i++) {
            buttons[i] = new JRadioButton(str[i]);
            buttonGroup.add(buttons[i]);
            buttons[i].setFocusPainted(false);
            add(buttons[i]);
        }
    }
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…
Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
Viewers learn about the scanner class in this video and are introduced to receiving user input for their programs. Additionally, objects, conditional statements, and loops are used to help reinforce the concepts. Introduce Scanner class: Importing…
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now