To refresh the contents in JTextArea on selection of a row in JTable.

This is the block of code that i have tried :

import java.awt.GridBagConstraints;

import java.awt.SystemColor;

import java.awt.event.ActionEvent;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import javax.swing.JButton;

import javax.swing.JLabel;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.ListSelectionModel;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import javax.swing.table.DefaultTableModel;

import ui.layouts.ComponentsBox;

import ui.layouts.GridPanel;

import ui.layouts.LayoutConstants;

import util.ui.UIUtil;

public class ElectronicJournal extends GridPanel {

private boolean DEBUG = false;

private boolean ALLOW_COLUMN_SELECTION = false;

private boolean ALLOW_ROW_SELECTION = true;

private GridPanel jGPanel = new GridPanel();

private GridPanel jGPanel1 = new GridPanel();

private GridPanel jGPanel2 = new GridPanel();

DefaultTableModel model;

private JLabel jLblTillNo = UIUtil.getHeaderLabel("TillNo :");

private JLabel jLblTillNoData = UIUtil.getBodyLabel("TILL123");

private JLabel jLblData = UIUtil.getBodyLabel("Detailed View");

private JTextArea textArea = new JTextArea();

private JScrollPane spTimeEntryView = new JScrollPane();

private JScrollPane pan = new JScrollPane();

String html= " Item Description: Price Change \n Old Price: 40.00 \n New Price: 50.00 \n Authorized By:USER1123 \n";

private JButton jBtnExporttoExcel = UIUtil.getButton(85,

"Export to Excel - F2", "");

final String[] colHeads = { "Task No", "Data", "User ID", "Date Time",

"Description" };

final Object[][] data = {

{ "1", "50.00", "USER123", "12/10/2006 05:30", "Price Change" },

{ "2", "100.00", "USER234", "15/10/2006 03:30", "Price Change12345"},

};

final String[] colHeads1 = {"Detailed View" };

final Object[][] data1 = {

{ "Task:Price Change", "\n"," Old Price:50.00"," \n ","New Price:100.00"," \n" }

};

JTable jtblTimeEntry = new JTable(data, colHeads);

JTable jTbl1 = new JTable(data1,colHeads1);

ComponentsBox jpBoxButton = new ComponentsBox(LayoutConstants.X_AXIS);

public ElectronicJournal() {

super();

jtblTimeEntry.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

if (ALLOW_ROW_SELECTION) { // true by default

ListSelectionModel rowSM = jtblTimeEntry.getSelectionModel();

rowSM.addListSelectionListener(new ListSelectionListener() {

public void valueChanged(ListSelectionEvent e) {

//Ignore extra messages.

if (e.getValueIsAdjusting()) return;

ListSelectionModel lsm = (ListSelectionModel)e.getSource();

if (lsm.isSelectionEmpty()) {

System.out.println("No rows are selected.");

} else {

int selectedRow = lsm.getMinSelectionIndex();

System.out.println("Row " + selectedRow

+ " is now selected.");

textArea.append("asd \n 123 \n");

}

}

});

} else {

jtblTimeEntry.setRowSelectionAllowed(false);

}

if (DEBUG) {

jtblTimeEntry.addMouseListener(new MouseAdapter() {

public void mouseClicked(MouseEvent e) {

printDebugData(jtblTimeEntry);

}

});

}

initialize();

}

private void printDebugData(JTable table) {

int numRows = table.getRowCount();

int numCols = table.getColumnCount();

javax.swing.table.TableModel model = table.getModel();

System.out.println("Value of data: ");

for (int i=0; i < numRows; i++) {

System.out.print("row " + i + ":");

for (int j=0; j < numCols; j++) {

System.out.print(" " + model.getValueAt(i, j));

}

System.out.println();

}

System.out.println("--");

}

private void initialize() {

this.setSize(680, 200);

this.setBackground(java.awt.SystemColor.control);

jBtnExporttoExcel.setBackground(SystemColor.control);

ComponentsBox cmpRibbonHORZ = new ComponentsBox(LayoutConstants.X_AXIS);

cmpRibbonHORZ.addComponent(jBtnExporttoExcel, false);

jpBoxButton.add(cmpRibbonHORZ);

this.addFilledComponent(jGPanel, 1, 1, 1, 1, GridBagConstraints.BOTH);

this.addFilledComponent(jGPanel1, 2, 1, 11, 5, GridBagConstraints.BOTH);

this.addFilledComponent(jGPanel2, 2, 13, 17, 5, GridBagConstraints.BOTH);

jGPanel.setSize(650, 91);

jGPanel.setBackground(SystemColor.control);

jGPanel.addFilledComponent(jLblTillNo,1,1,GridBagConstraints.WEST);

jGPanel.addFilledComponent(jLblTillNoData,1,10,GridBagConstraints.BOTH);

jGPanel.setBorder(javax.swing.BorderFactory.createEmptyBorder(0,0,0,0));

jGPanel1.setBackground(SystemColor.control);

jGPanel1.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 0, 0,

0));

spTimeEntryView.setViewportView(jtblTimeEntry);

jGPanel1.addFilledComponent(spTimeEntryView, 1, 1, 11, 4,

GridBagConstraints.BOTH);

jGPanel2.addFilledComponent(jLblData,1,1,GridBagConstraints.WEST);

jGPanel2.setBackground(SystemColor.control);

jGPanel2.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 0, 0,

0));

//textArea.setText(html);

pan.setViewportView(textArea);

int selectedRow = jTbl1.getSelectedRow();

System.out.println("selectedRow ::" +selectedRow);

int colCount = jTbl1.getColumnCount();

System.out.println("colCount::" +colCount);

StringBuffer buf = new StringBuffer();

System.out.println("Out Of For");

/*for(int count =0;count<colCount;count++)

{System.out.println("Inside For");

buf.append(jTbl1.getValueAt(selectedRow,count));

// method 1 : Constructs a new text area with the specified text.

textArea =new JTextArea(buf.toString());

//method 2 :To Append the given string to the text area's current text.

textArea.append(buf.toString());

}*/

jGPanel2.addFilledComponent(pan,2,1,5,5,GridBagConstraints.BOTH);

this.addAnchoredComponent(jpBoxButton, 7, 5, 11, 5,

GridBagConstraints.CENTER);

}

}

This code displays the same data on the JTextArea everytime i select each row,but my requirement is ,it has to refresh and display different datas in the JTextArea accordingly,as i select each row.Please help.Its urgent.

Message was edited by: Samyuktha

Samyuktha>

[6674 byte] By [Samyukthaa] at [2007-10-3 8:24:42]