JTabbedPane selection problem

[ram shyam]

Hi all,

I am using a JTabbedPane and in the changeListener(), I have the code to do some operation if the selected tab name is of a particluar name. But the stateChanged() method is called multiple times for a single selection. Any idea of how to restrict this?

Here is my code -

---------------------------------------------------------------

tabPane.addChangeListener(new ChangeListener(){

public void stateChanged(ChangeEvent arg0) {

String tabName = tabPane.getTitleAt(tabPane.getSelectedIndex());

if (//condition)
{
// do some operation
}

}
----------------------------------------------------------------

Please clarify!

thanks in advance!!

});

[Maneesh Godbole]

Works fine for me.
Is that your real code?

[Bartek Myszkowski]

Check this example
for me this works correct I mean one selection = one stateChanged invocation

import javax.swing.JFrame;
import javax.swing.JTabbedPane;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class RunMe extends JFrame implements ChangeListener {

	private JTabbedPane tp = new JTabbedPane();
	
	public RunMe() {
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setBounds(10, 10, 500, 100);
		tp.addTab("test00", null);
		tp.addTab("test01", null);
		tp.addTab("test02", null);
		tp.addChangeListener(this);
		this.add(tp);
		this.setVisible(true);
	}

	public void stateChanged(ChangeEvent arg0) {
		String tabName = tp.getTitleAt(tp.getSelectedIndex());
		if (tabName.equals("test00")) {
			System.out.println("test00 selected");
		} else if (tabName.equals("test01")) {
			System.out.println("test01 selected");
		} else if (tabName.equals("test02")) {
			System.out.println("test02 selected");
		}
	}
	
	public static void main(String[] args) {
		new RunMe();
	}

}

if this doesn't help, provide more sourcecode of your appplication.

[ram shyam]

yes, this is the code I am using. Since I am using a JoptionPane inside the if condition, and the since the tabbedPane is getting selected automatically by the program after I select it once, the JoptionPane appears multiplt times everytime after I press OK in the JoptionPane.

Any idea what the problem is?

Thanks in advance!!

[Bartek Myszkowski]

If it is possible share Your code.
It's hard to work out anything if can't see full source.
I think the bug is somewhere else in Your code.

Check Your Private Messages from time to time

[ram shyam]

Hi all,

Yes, its basically because I have the changeListener called inside a for loop which was the cause of this. Now I have changed this and it works perfectly fine.

Thanks for your help!