Problem with JScrollPane on JTextArea

You are adding your text areas to a scroll pane but not adding the scroll pane to the panel.

i.e. you are doing this:

errorDescTxtArea = new JTextArea( );

errorDescTxtArea.setBounds( 129, 51, 350, 75 );

errorDescTxtArea.setLineWrap( true );

errorDescTxtArea.setWrapStyleWord( true );

JScrollPane sdPane = new JScrollPane( errorDescTxtArea );

errorPanel.add( errorDescTxtArea );

and you should be doing this:

errorDescTxtArea = new JTextArea( );

errorDescTxtArea.setBounds( 129, 51, 350, 75 );

errorDescTxtArea.setLineWrap( true );

errorDescTxtArea.setWrapStyleWord( true );

JScrollPane sdPane = new JScrollPane( errorDescTxtArea );

errorPanel.add(sdPane);

c0demonk3ya at 2007-7-29 16:52:19 >

When I added the ScrollPane to the Panel, JTextArea vanishes. Is it because I am using a null layout?

scshekhara at 2007-7-29 16:52:19 >

I tried again using a layout managers and I was able to get the scrollpane on the JTextArea. Now however I am not to bring the 2 buttons ( Ok and Reset ) together in the middle of the row. Any help is highly appreciated. Code of the method that generates the gui is given below. I have highlighted the area where I need the help.

private void createErrorPanel() {

GridBagConstraints gbc = new GridBagConstraints();

GridBagLayout gbl = new GridBagLayout();

errorPanel = new JPanel();

errorPanel.setLayout( gbl );

JLabel topDummyLbl = new JLabel( " " );

JLabel sepDummyLbl = new JLabel( " " );

JLabel l11 = new JLabel(" Error Code:",JLabel.RIGHT);

errorCdTxt = new JTextField("Type Error Code ...");

JLabel l21 = new JLabel("Error Description: ", JLabel.RIGHT);

errorDescTxtArea = new JTextArea(3,50 );

JLabel l31 = new JLabel( "Error Resolution : ", JLabel.RIGHT );

errorResnTxtArea = new JTextArea( 3,50 );

errCdOkBtn = new JButton( "Ok" );

errCdResBtn = new JButton( "Reset" );

GridBagConstraints topDummyLblGBC = new GridBagConstraints();

topDummyLblGBC.gridwidth = GridBagConstraints.REMAINDER;

topDummyLblGBC.gridheight = 1;

errorPanel.add( topDummyLbl,topDummyLblGBC );

l11.setLabelFor(errorCdTxt);

errorPanel.add( l11 );

GridBagConstraints errCdTxtGBC = new GridBagConstraints();

errCdTxtGBC.gridwidth = GridBagConstraints.REMAINDER;

errCdTxtGBC.anchor = GridBagConstraints.WEST;

errorPanel.add (errorCdTxt, errCdTxtGBC);

l21.setLabelFor( errorDescTxtArea );

errorPanel.add( l21 );

GridBagConstraints errDescTxtAreaGBC = new GridBagConstraints();

errDescTxtAreaGBC.gridwidth = GridBagConstraints.REMAINDER;

errDescTxtAreaGBC.fill = GridBagConstraints.BOTH;

errDescTxtAreaGBC.insets = new Insets (1, 1, 1, 1);

JScrollPane sdPane = new JScrollPane( errorDescTxtArea );

errorPanel.add (sdPane, errDescTxtAreaGBC);

l31.setLabelFor( errorResnTxtArea );

errorPanel.add( l31 );

GridBagConstraints errResTxtAreaGBC = new GridBagConstraints();

errResTxtAreaGBC.gridwidth = GridBagConstraints.REMAINDER;

errResTxtAreaGBC.fill = GridBagConstraints.BOTH;

errResTxtAreaGBC.insets = new Insets (1, 1, 1, 1);

JScrollPane srPane = new JScrollPane( errorResnTxtArea );

errorPanel.add (srPane, errResTxtAreaGBC);

// NEED HELP FOR THIS ROW OF COMPONENTS

GridBagConstraints sepDummyLblGBC = new GridBagConstraints();

sepDummyLblGBC.gridwidth = GridBagConstraints.REMAINDER;

sepDummyLblGBC.gridheight = 4;

errorPanel.add( sepDummyLbl,sepDummyLblGBC );

JLabel okBtnLbl = new JLabel( " " );

GridBagConstraints okBtnLblGBC = new GridBagConstraints();

okBtnLblGBC.gridwidth = GridBagConstraints.RELATIVE;

errorPanel.add( okBtnLbl, okBtnLblGBC );

GridBagConstraints okBtnGBC = new GridBagConstraints();

okBtnGBC.gridwidth = GridBagConstraints.RELATIVE;

okBtnGBC.insets = new Insets (1, 1, 1, 0);

errorPanel.add( errCdOkBtn, okBtnGBC );

GridBagConstraints resBtnGBC = new GridBagConstraints();

resBtnGBC.gridwidth = GridBagConstraints.RELATIVE;

resBtnGBC.insets = new Insets (1, 1, 1, 1);

errorPanel.add( errCdResBtn, resBtnGBC );

JLabel resBtnLbl = new JLabel( " " );

GridBagConstraints resBtnLblGBC = new GridBagConstraints();

resBtnLblGBC.gridwidth = GridBagConstraints.REMAINDER;

errorPanel.add( resBtnLbl, resBtnLblGBC );

// END FOR NEED HELP FOR THIS ROW OF COMPONENTS

GridBagConstraints dummyLabelGBC = new GridBagConstraints();

dummyLabelGBC.gridwidth = GridBagConstraints.REMAINDER;

dummyLabelGBC.weighty = 0.5;

errorPanel.add (new JLabel(""), dummyLabelGBC);

menuFrame.getContentPane().add( errorPanel );

menuFrame.setSize(790, 550);

menuFrame.setVisible(true);

}

scshekhara at 2007-7-29 16:52:19 >