Problem with Jtable Horizantal Scroll Pane

[Brant Thomas]

Hello,

I have a Java swing application which has a Jtable inside Jscrollpane. The scrollpane is assed to the JFrame. When I scroll horizontally, The header text is blurred/disappeared. I know the reason is because of having the huge width settings to the table which is greater than frame size. But I need to have that setting. I have attached a sample code to show my issue.

import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;

public class ScrollableJTable{
	public static void main(String[] args) {
		new ScrollableJTable();
	}
	public ScrollableJTable(){
		JFrame frame = new JFrame("Creating a Scrollable JTable!");
		JPanel panel = new JPanel();
		String data[][] = {{"001","vinod","Bihar","India","Biology","65","First"},{"002","Raju","ABC","Kanada","Geography","58","second"},{"003","Aman","Delhi","India","computer","98","Dictontion"},};
		String col[] = {"Roll","Name","State","country","Math","Marks","Grade"};
		JTable table = new JTable(data,col);
		table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
		table.setPreferredSize(new Dimension(600,200));
		JTableHeader header = table.getTableHeader();
		header.setBackground(Color.yellow);
		JScrollPane pane = new JScrollPane(table);	
		panel.add(pane);
		frame.add(panel);
		frame.setSize(500,200);
		frame.setUndecorated(true);
		frame.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
}

[Rob Camick]

Never set the preferred size of the component being added to the scrollpane. Instead try somthing like:

//        table.setPreferredSize(new Dimension(600,200));
        JTableHeader header = table.getTableHeader();
        header.setBackground(Color.yellow);
        JScrollPane pane = new JScrollPane(table);
        pane.setPreferredSize(new Dimension(400,100));

[Mohit J Kumar]

Hi,
This is working just fine on my machine.
It's is not making any difference even after commenting out the size settings.
I am using Eclipse IDE.

[Brant Thomas]

I have set the preferred size because when I maximize the panel, My table should adjust to the size of the maximized panel. How can I achieve that now?Because, If i remove the preferred size, even If i maximize the size remains the same.

[Rob Camick]

How can I achieve that now?

I gave you the working code!

[Campbell Ritchie]

And welcome to the Ranch Brant Thomas