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JScrollPane w/JTextArea not visible

I am using the following to establish a JTextArea with scroll bars.  Problem is, it doesn't show up on execution.

JTextArea taCase = new JTextArea();
  JScrollPane jsp = new JScrollPane( taCase,
                    JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
                    JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
.
.
.
 contentPane.add( jsp );
 //contentPane.add(taCase );

What am I missing?
thanks,
je
0
jesterepsilon
Asked:
jesterepsilon
3 Solutions
 
CEHJCommented:
Can you post all the method in which you add the scroll pane?
0
 
objectsCommented:
make sure you don't add the text area to your frame elsewhere in your code.
0
 
objectsCommented:
heres an example:

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

public class ScrollText
{
    public static void main(String[] args)
    {
        JFrame frame = new JFrame();
        Container contentPane = frame.getContentPane();
        JTextArea taCase = new JTextArea();
        JScrollPane jsp = new JScrollPane( taCase,
            JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
            JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
        contentPane.add( jsp );
        frame.setSize(100, 100);
        frame.show();
    }
}


0
 
EmildaCommented:
You didn't set the size. As objects suggested you need to set the size of frame if you are adding JScrollPane to
frame.getContentpane.

JScrollPane jsp = new JScrollPane( taCase, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JSrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

If you give JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JSrollPane.HORIZONTAL_SCROLLBAR_ALWAYS arguments when you create JScrollPane the scrollpane always appear.

You can also use as shown below as well, in this case scroll pane adds the scrollbars automatically (but only "as needed") when the cursor goes beyonds the size set to the content pane.

JScrollPane jsp = new JScrollPane( taCase)
0
 
NaeemgCommented:
hello use the following code, it will work.

jsp.getViewport().add(taCase, null);
contentPane.add( jsp );
 //contentPane.add(taCase );

0
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