Why iam unable to get the valu from combobox

when i run this code
everytime iam getting blank alert
y iam unable to get the selected item from combo box
thank u
<%@ page import="java.util.Date"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%><%@page import="java.sql.*,java.util.*,java.text.*,java.util.ArrayList, java.util.List,org.joda.time.DateTimeConstants,org.joda.time.LocalDate,
org.joda.time.Weeks"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <TITLE>Reading Data From Text Fields</TITLE>
</HEAD><BODY onload=Datevalue()>
     <form name="form1" action ="" method="post" onSubmit="update();">
    <img src="nendrasys_logo.gif" align="right"></img>
<b><font color="669900"><h4 align="left">UserName:</font>
<jsp:useBean id="user" scope="session" class="nendrasys.User" />
<jsp:getProperty name="user" property= "name"/>
&nbsp&nbsp&nbsp&nbsp
<b><font color="90be00"><h4 align="left">Designation:</font>
<jsp:getProperty name="user" property= "designation"/>
<br><font color="669900"><h4 align="right">Project:</font>
    <select name="Projects">
     <option>Project:1</option>
     <option>Project:2</option>
     <option>Project:3</option>
     <option>Project:4</option>
     <option>Project:5</option>
</select>
<%! String s; %>
<% DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
        Date date = new Date();
        //out.println(dateFormat.format(date));
            s= dateFormat.format(date);
%>
<select name="Dates" sizes=1 id="dates" onchange="Datevalue(this.value)">
<script type="text/javascript">

</script>
<br><br>
<TABLE BORDER="2" BORDERCOLOR="#336699" CELLPADDING="2" CELLSPACING="2" WIDTH="100%">
<TR>
<TD>&nbsp&nbsp&nbsp</TD>
<TD bgcolor="669900"><label id="sun"></label></TD>
<TD bgcolor="90be00"><label for="mon" id="Mon">Mon</label></TD>
<TD bgcolor="669900"><label for="tue" id="tue">Tue</label></TD>
<TD bgcolor="90be00"><label for="wed" id="wed">Wed</label></TD>
<TD bgcolor="669900"><label for="thu" id="thu">Thu</label></TD>
<TD bgcolor="90be00"><label for="fri" id="fri">Fri</label></TD>
<TD bgcolor="669900"><label for="sat" id="sat">Sat</label></TD>
<TD bgcolor="90be00"><label for="tot" id="tot">Total</label></TD>
</TR>
<tr>
<th>Project Work</th>
<td bgcolor="669900"><input type="text" name="c11" size="2" value="7" onBlur="javascript:document.frm.c12.value = document.frm.c11.value"></td>
<td bgcolor="90be00"><input type="text" name="c12" size="2" value="3"></td>
<td bgcolor="669900"><input type="text" name="c13" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c14" size="2"></td>
<td bgcolor="669900"><input type="text" name="c15" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c16" size="2"></td>
<td bgcolor="669900"><input type="text" name="c17" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c18" size="4"></td>
</tr>
<tr>
<th>Internal N/C</th>
<td bgcolor="669900"><input type="text" name="c21" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c22" size="2"></td>
<td bgcolor="669900"><input type="text" name="c23" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c24" size="2"></td>
<td bgcolor="669900"><input type="text" name="c25" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c26" size="2"></td>
<td bgcolor="669900"><input type="text" name="c27" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c28" size="4"></td>
</tr>
<tr>
<th>Public Holidays</th>
<td bgcolor="669900"><input type="text" name="c31" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c32" size="2"></td>
<td bgcolor="669900"><input type="text" name="c33" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c34" size="2"></td>
<td bgcolor="669900"><input type="text" name="c35" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c36" size="2" ></td>
<td bgcolor="669900"><input type="text" name="c37" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c38" size="4"></td>
</tr>
<tr>
<th>Holidays Taken</th>
<td bgcolor="669900"><input type="text" name="c41" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c42" size="2"></td>
<td bgcolor="669900"><input type="text" name="c43" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c44" size="2"></td>
<td bgcolor="669900"><input type="text" name="c45" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c46" size="2"></td>
<td bgcolor="669900"><input type="text" name="c47" size="2"></td>
<td bgcolor="90be00"><input type="text" name="c48" size="4"></td>
</tr>
</TABLE>
<br>
<center><input type="submit" value="Submit" /> </center>
<%
String username   = request.getParameter("userid");
String pwd = request.getParameter("pwd");
String connectionURL = "jdbc:mysql://localhost:3306/timestamp";
Connection connection = null;
Statement statement = null;
ResultSet rs = null;
String sql=null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "root","nendrasys");
statement = connection.createStatement();
//rs=statement.executeQuery(sql); %>
</form>
<SCRIPT language='Javascript'>
function update()
    alert("ciaoooooo");
    <%
        try
            String value=request.getParameter("c11");
            String value1=request.getParameter("c12");
         //   if(value!=null)
          // System.out.println(value);
           // System.out.println(value1);
        catch(NullPointerException n)
    %>
</script>
<SCRIPT language='Javascript'>
function Datevalue(date)
       // document.getElementById("dates").innerHTML=document.getElementById("sun").value;
alert(date);
         // alert( document.getElementById("dates"))
            <% System.out.println("bye");%>
</SCRIPT>
</BODY>
</HTML>

You mixed Java and Javascript in the expectation that they runs simultaneously.
You are Wrong.
You need to distinguish between the server side languages and client side languages. Java/JSP runs at the server side and produces a HTML page with other client side stuff in it like CSS and Javascript. When the HTML page is finished, it will be sent to the client and then Java/JSP stops. Once the HTML page is arrived at the client, there is no one line Java code in it, only its output/result. Do a View Source in your favourite web browser to see it. Only from that moment on, Javascript runs and/or can be invoked.
Whenever you want to use Java variables in Javascript, you need to print them out as a Javascript variable. Whenever you want to use Javascript variables in Java, you need to invoke a request to the server and pass them as parameters. The request can be either synchronous (a link or a form submit) or asynchronous (ajaxical).

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probably the request.getParmeterValues will not work in this case as the name of the 2 select boxes are different....
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<input type="hidden" name="hdToValue">
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<tr>
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</tr>
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Thanks

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I have applied Fix Pack Siebel 8.0.0.12 on top of 8.0.0.11 SBA. After it is appled, I am facing a documented issue within the Release Notes for the 8.0.0.12 Fix Pack
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Please Assit
Steps Details from Release Notes:
UNABLE TO LAUNCH URL AFTER APPLYING SIEBEL 8.0.0.12
Component: Server Infrastructure
Subcomponent: SWSE
Product Version: Siebel 8.0.0.12
Base Bug ID: 11938270
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seedgeneratorutil myseed.dat abcdef
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The myseed.dat file is generated in the eappweb/bin directory.
Edit eapps.cfg to include the following parameters under the SWE section:
seedfile = < complete path for myseed.dat >
Bounce the web server.
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Thanks
Kumar

Wilson,
Thanks for your reply.I have repeated the steps and regenerated the error messages.
Browser
Message:
An error occurred while trying to process your request. This error indicates a problem with the configuration of this server and should be reported to the webmaster (along with any errors listed below). We apologize for the inconvenience
Initialization error:
Unable to get the seed from binary file.
Log
2021 2011-09-20 23:23:01 0000-00-00 00:00:00 +0530 00000000 001 003f 0001 09 ss110920_7068 7068 7852 E:\sba80\SWEApp\log\ss110920_7068.log 8.0.0.12 [20444] ENU
ProcessPluginState ProcessPluginStateError 1 000000024e781b9c:0 2011-09-20 23:23:01 7852: [SWSE] Unable to get the seed from binary file.
Eapps.cfg
[swe]
Language = enu
Log = errors
LogDirectory = $(SWSERoot)\log
ClientRootDir = $(SWSERoot)
SessionMonitor = False
AllowStats = true
LogSegmentSize = 0
LogMaxSegments = 0
DisableNagle = False
seedfile = E:\sba80\SWEApp\BIN\80012seed.dat
Thanks
Kumar

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How to get the values from a html form embedded in a swing container

Hi all,
I am developing an application in which i have to read a html file and display it in a swing container.That task i made it with the help of a tool.But now i want to get the values from that page.ie when the submit button is clicked all the values of that form should be retrived by a servlet/standalone application.I don't know how to proceed further.Any help in this regard will be very greatful
Thanks in advance,
Prakash

By parsing the HTML.

Getting the Values from a Tiled View

Hi,
I have a TiledView and I have checkbox in the tiled view. I am trying
to get the values of the checked boxes.
I have coded like this.
Object[] links = getRSystemLinks().getCbSystemUrl().getValues();
if I see the links.length i get only one. In html If I see the code
it appends the TileIndex in brackets. If I replace the TileIndex with
0 in all the fields in endCbSystemUrl method I get the correct values.
In the TiledView beginDisplay() method my code is like this.
if (getPrimaryModel() == null) throw new ModelControlException
("Primary model is null");
super.beginDisplay();
resetTileIndex();
pgCustomizeLinksViewBean parentBean = (pgCustomizeLinksViewBean)
getParent();
((DatasetModel) getDefaultModel()).setSize
(parentBean.SystemChoicesValue.size());
Any Suggestions on this.
Thanks
Namburi

Namburi--
Remember, the getValues() method does not return the values from a column in
a TiledView. It is strictly for use by fields that can have multiple
values, like multi-select list boxes.
DO NOT remove the indexing feature from the field names, especially in the
case of checkboxes, because checkboxes aren't submitted back to the server
unless they are checked. By overriding the automatic checkbox tracking
feature JATO provides, you won't be able to tell which checkboxes were
actually checked by row--you'll simply get back a list the same size as the
number of checkboxes that were checked, without any placeholders for the
ones that weren't checked.
Instead, on submit, you simply need to move through the tiledView and check
the value of checkbox on each row:
tiledView.beforeFirst();
while (tiledView.next())
if (getDisplayFieldBooleanValue("myCheckBox"))
You can use the same construct to build up an array or list:
List checkedList=new LinkedList();
tiledView.beforeFirst();
while (tiledView.next())
if (getDisplayFieldBooleanValue("myCheckBox"))
checkedList.add(new Boolean(true))
else
checkedList.add(new Boolean(false))
Todd
Todd Fast
Senior Engineer
Sun Microsystems, Inc.
todd.fast@s...
----- Original Message -----
From: <vnamboori@y...>
Sent: Wednesday, October 17, 2001 3:49 PM
Subject: [iPlanet-JATO] Getting the Values from a Tiled View
Hi,
I have a TiledView and I have checkbox in the tiled view. I am trying
to get the values of the checked boxes.
I have coded like this.
Object[] links = getRSystemLinks().getCbSystemUrl().getValues();
if I see the links.length i get only one. In html If I see the code
it appends the TileIndex in brackets. If I replace the TileIndex with
0 in all the fields in endCbSystemUrl method I get the correct values.
In the TiledView beginDisplay() method my code is like this.
if (getPrimaryModel() == null) throw new ModelControlException
("Primary model is null");
super.beginDisplay();
resetTileIndex();
pgCustomizeLinksViewBean parentBean = (pgCustomizeLinksViewBean)
getParent();
((DatasetModel) getDefaultModel()).setSize
(parentBean.SystemChoicesValue.size());
Any Suggestions on this.
Thanks
Namburi
[email protected]

NullPointerException - Cannot get the value from variable f_cashGiven

In SubCheckout.java (a POS), what I want is when Payment button (f_cashPayment) is pressed, the action "Cash" is performed, get the value from Cash Given (f_cashGiven), do the subtraction and post the value as Cash Return (f_cashReturn). The code is filled in actionPerformed. But I cannot get the value by using f_cashGiven.getValue() from VNumber class. It returns NULL. This should be quite straight forward, but I do not know what is wrong. Please help!
Enclosed please find the source code of SubCheckout.java and VNumber.java
This is the code of SubCheckout.java :
* The contents of this file are subject to the   Compiere License Version 1.1
* ("License"); You may not use this file except in compliance with the License
* You may obtain a copy of the License at http://www.compiere.org/license.html
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
* The Original Code is Compiere ERP & CRM Smart Business Solution. The Initial
* Developer of the Original Code is Jorg Janke. Portions created by Jorg Janke
* are Copyright (C) 1999-2005 Jorg Janke.
* All parts are Copyright (C) 1999-2005 ComPiere, Inc. All Rights Reserved.
* Contributor(s): ______________________________________.
package org.compiere.pos;
import java.awt.*;
import java.awt.event.*;
import java.math.BigDecimal;
import javax.swing.border.*;
import org.compiere.grid.ed.*;
import org.compiere.swing.*;
import org.compiere.util.*;
*     POS Checkout Sub Panel
* @author Jorg Janke
* @version $Id: SubCheckout.java,v 1.3 2005/03/11 20:28:22 jjanke Exp $
public class SubCheckout extends PosSubPanel implements ActionListener
      *      Constructor
      *     @param posPanel POS Panel
     public SubCheckout (PosPanel posPanel)
          super (posPanel);
     }     //     PosSubCheckout
     private CButton f_register = null;
     private CButton f_summary = null;
     private CButton f_process = null;
     private CButton f_print = null;
     private CLabel f_lcreditCardNumber = null;
     private CTextField f_creditCardNumber = null;
     private CLabel f_lcreditCardExp = null;
     private CTextField f_creditCardExp = null;
     private CLabel f_lcreditCardVV = null;
     private CTextField f_creditCardVV = null;
     private CButton f_cashPayment = null;
     private CLabel f_lcashGiven = null;
     private VNumber f_cashGiven = null;
     private CLabel f_lcashReturn = null;
     private VNumber f_cashReturn = null;
     private CButton f_creditPayment = null;
     /**     Logger               */
     private static CLogger log = CLogger.getCLogger(SubCheckout.class);
      *      Initialize
     public void init()
          //     Title
          TitledBorder border = new TitledBorder(Msg.getMsg(Env.getCtx(), "Checkout"));
          setBorder(border);
          //     Content
          setLayout(new GridBagLayout());
          GridBagConstraints gbc = new GridBagConstraints();
          gbc.insets = INSETS2;
          //     --     0
          gbc.gridx = 0;
          f_register = createButtonAction("Register", null);
          gbc.gridy = 0;
          add (f_register, gbc);
          f_summary = createButtonAction("Summary", null);
          gbc.gridy = 1;
          add (f_summary, gbc);
          f_process = createButtonAction("Process", null);
          gbc.gridy = 2;
          add (f_process, gbc);
          f_print = createButtonAction("Print", null);
          gbc.gridy = 3;
          add (f_print, gbc);
          //     --     1 -- Cash
          gbc.gridx = 1;
          gbc.gridheight = 2;
          gbc.fill = GridBagConstraints.BOTH;
          gbc.weightx = .1;
          CPanel cash = new CPanel(new GridBagLayout());
          cash.setBorder(new TitledBorder(Msg.getMsg(Env.getCtx(), "Cash")));
          gbc.gridy = 0;
          add (cash, gbc);
          GridBagConstraints gbc0 = new GridBagConstraints();
          gbc0.insets = INSETS2;
          gbc0.anchor = GridBagConstraints.WEST;
          f_lcashGiven = new CLabel(Msg.getMsg(Env.getCtx(),"CashGiven"));
          cash.add (f_lcashGiven, gbc0);
          f_cashGiven = new VNumber("CashGiven", false, false, true, DisplayType.Amount,
               Msg.translate(Env.getCtx(), "CashGiven"));
          f_cashGiven.addActionListener(this);
          f_cashGiven.setColumns(10, 25);
          cash.add (f_cashGiven, gbc0);
          f_cashGiven.setValue(Env.ZERO);
          f_lcashReturn = new CLabel(Msg.getMsg(Env.getCtx(),"CashReturn"));
          cash.add (f_lcashReturn, gbc0);
          f_cashReturn = new VNumber("CashReturn", false, true, false, DisplayType.Amount,
               "CashReturn");
          f_cashReturn.setColumns(10, 25);
          cash.add (f_cashReturn, gbc0);
          f_cashReturn.setValue(Env.ZERO);
          f_cashPayment = createButtonAction("Payment", null);
          f_cashPayment.setActionCommand("Cash");
          gbc0.anchor = GridBagConstraints.EAST;
          gbc0.weightx = 0.1;
          cash.add (f_cashPayment, gbc0);
          //     --     1 -- Creditcard
          CPanel creditcard = new CPanel(new GridBagLayout());
          creditcard.setBorder(new TitledBorder(Msg.translate(Env.getCtx(), "CreditCardType")));
          gbc.gridy = 2;
          add (creditcard, gbc);
          GridBagConstraints gbc1 = new GridBagConstraints();
          gbc1.insets = INSETS2;
          gbc1.anchor = GridBagConstraints.WEST;
          gbc1.gridx = 0;
          gbc1.gridy = 0;
          f_lcreditCardNumber = new CLabel(Msg.translate(Env.getCtx(), "CreditCardNumber"));
          creditcard.add (f_lcreditCardNumber, gbc1);
          gbc1.gridy = 1;
          f_creditCardNumber = new CTextField(18);
          creditcard.add (f_creditCardNumber, gbc1);
          gbc1.gridx = 1;
          gbc1.gridy = 0;
          f_lcreditCardExp = new CLabel(Msg.translate(Env.getCtx(),"CreditCardExp"));
          creditcard.add (f_lcreditCardExp, gbc1);
          gbc1.gridy = 1;
          f_creditCardExp = new CTextField(5);
          creditcard.add (f_creditCardExp, gbc1);
          gbc1.gridx = 2;
          gbc1.gridy = 0;
          f_lcreditCardVV = new CLabel(Msg.translate(Env.getCtx(), "CreditCardVV"));
          creditcard.add (f_lcreditCardVV, gbc1);
          gbc1.gridy = 1;
          f_creditCardVV = new CTextField(5);
          creditcard.add (f_creditCardVV, gbc1);
          gbc1.gridx = 3;
          gbc1.gridy = 0;
          gbc1.gridheight = 2;
          f_creditPayment = createButtonAction("Payment", null);
          f_creditPayment.setActionCommand("CreditCard");
          gbc1.anchor = GridBagConstraints.EAST;
          gbc1.weightx = 0.1;
          creditcard.add (f_creditPayment, gbc1);
     }     //     init
      *      Get Panel Position
     public GridBagConstraints getGridBagConstraints()
          GridBagConstraints gbc = super.getGridBagConstraints();
          gbc.gridx = 0;
          gbc.gridy = 3;
          return gbc;
     }     //     getGridBagConstraints
      *      Dispose - Free Resources
     public void dispose()
          super.dispose();
     }     //     dispose
      *      Action Listener
      *     @param e event
     public void actionPerformed (ActionEvent e)
          String action = e.getActionCommand();
          if (action == null || action.length() == 0)
               return;
          log.info( "PosSubCheckout - actionPerformed: " + action);
          if (e.getSource() == f_cashGiven) {
               f_cashGiven.setValue(f_cashGiven.getValue());
               System.out.println("f_cashGiven"+f_cashGiven.getDisplay());
          //     Register
          //     Summary
          //     Print
          if (action.equals("Cash")) {
               BigDecimal CashGiven, GrandTotal, CashReturn;
               System.out.println("Cash given is "+f_cashGiven.getDisplay());
               CashGiven = (BigDecimal)f_cashGiven.getValue();
               GrandTotal = (BigDecimal)p_posPanel.f_curLine.getOrder().getGrandTotal();
               CashReturn = CashGiven.subtract(GrandTotal);
               f_cashReturn.setValue(CashReturn);
          //     Cash (Payment)
          //     CreditCard (Payment)
     }     //     actionPerformed
}     //     PosSubCheckoutThis is the code of VNumber.java :
* The contents of this file are subject to the   Compiere License Version 1.1
* ("License"); You may not use this file except in compliance with the License
* You may obtain a copy of the License at http://www.compiere.org/license.html
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
* The Original Code is Compiere ERP & CRM Smart Business Solution. The Initial
* Developer of the Original Code is Jorg Janke. Portions created by Jorg Janke
* are Copyright (C) 1999-2005 Jorg Janke.
* All parts are Copyright (C) 1999-2005 ComPiere, Inc. All Rights Reserved.
* Contributor(s): ______________________________________.
package org.compiere.grid.ed;
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import java.math.*;
import java.text.*;
import java.util.logging.*;
import javax.swing.*;
import javax.swing.text.*;
import org.compiere.apps.*;
import org.compiere.model.*;
import org.compiere.swing.*;
import org.compiere.util.*;
*     Number Control
*      @author      Jorg Janke
*      @version      $Id: VNumber.java,v 1.41 2005/09/03 01:57:16 jjanke Exp $
public final class VNumber extends JComponent
     implements VEditor, ActionListener, KeyListener, FocusListener
     /**     Number of Columns (12)          */
     public final static int SIZE = 12;
      * IDE Bean Constructor
     public VNumber()
          this("Number", false, false, true, DisplayType.Number, "Number");
     }   // VNumber
      *     Create right aligned Number field.
      *     no popup, if WindowNo == 0 (for IDs)
      * @param columnName column name
      * @param mandatory mandatory
      * @param isReadOnly read only
      * @param isUpdateable updateable
      * @param displayType display type
      * @param title title
     public VNumber(String columnName, boolean mandatory, boolean isReadOnly, boolean isUpdateable,
          int displayType, String title)
          super();
          super.setName(columnName);
          m_columnName = columnName;
          m_title = title;
          setDisplayType(displayType);
          LookAndFeel.installBorder(this, "TextField.border");
          this.setLayout(new BorderLayout());
//          this.setPreferredSize(m_text.getPreferredSize());          //     causes r/o to be the same length
//          int height = m_text.getPreferredSize().height;
//          setMinimumSize(new Dimension (30,height));
          //     ***     Text     ***
          m_text.setBorder(null);
          m_text.setHorizontalAlignment(JTextField.TRAILING);
          m_text.addKeyListener(this);
          m_text.addFocusListener(this);
          //     Background
          setMandatory(mandatory);
          this.add(m_text, BorderLayout.CENTER);
          //     ***     Button     ***
          m_button.setIcon(Env.getImageIcon("Calculator10.gif"));
          m_button.setMargin(new Insets(0, 0, 0, 0));
          m_button.setFocusable(false);
          m_button.addActionListener(this);
          this.add (m_button, BorderLayout.EAST);
          //     Prefereed Size
          this.setPreferredSize(this.getPreferredSize());          //     causes r/o to be the same length
          // Size
          setColumns(SIZE, CComboBox.FIELD_HIGHT-4);
          //     ReadWrite
          if (isReadOnly || !isUpdateable)
               setReadWrite(false);
          else
               setReadWrite(true);
     }     //     VNumber
      * Dispose
     public void dispose()
          m_text = null;
          m_button = null;
          m_mField = null;
     }   // dispose
      *     Set Document
      * @param doc document
     protected void setDocument(Document doc)
          m_text.setDocument(doc);
     }     //     getDocument
     private String               m_columnName;
     protected int               m_displayType;     // Currency / UoM via Context
     private DecimalFormat     m_format;
     private String               m_title;
     private boolean               m_setting;
     private String               m_oldText;
     private String               m_initialText;
     private boolean               m_rangeSet = false;
     private Double               m_minValue;
     private Double               m_maxValue;
     private boolean               m_modified = false;
     /** The Field                  */
     private CTextField          m_text = new CTextField(SIZE);     //     Standard
     /** The Button                  */
     private CButton              m_button = new CButton();
     private MField          m_mField = null;
     /**     Logger               */
     private static CLogger log = CLogger.getCLogger(VNumber.class);
      *      Set no of Columns
      *     @param columns columns
     public void setColumns (int columns, int height)
          m_text.setPreferredSize(null);
          m_text.setColumns(columns);
          Dimension size = m_text.getPreferredSize();
          if (height > size.height)               //     default 16
               size.height = height;
          if (CComboBox.FIELD_HIGHT-4 > size.height)
               size.height = VLookup.FIELD_HIGHT-4;
          this.setPreferredSize(size);          //     causes r/o to be the same length
          this.setMinimumSize(new Dimension (columns*10, size.height));
          m_button.setPreferredSize(new Dimension(size.height, size.height));
     }     //     setColumns
      *     Set Range with min & max
      * @param minValue min value
      * @param maxValue max value
      *     @return true, if accepted
     public boolean setRange(Double minValue, Double maxValue)
          m_rangeSet = true;
          m_minValue = minValue;
          m_maxValue = maxValue;
          return m_rangeSet;
     }     //     setRange
      *     Set Range with min & max = parse US style number w/o Gouping
      * @param minValue min value
      * @param maxValue max value
      * @return true if accepted
     public boolean setRange(String minValue, String maxValue)
          if (minValue == null || maxValue == null)
               return false;
          try
               m_minValue = Double.valueOf(minValue);
               m_maxValue = Double.valueOf(maxValue);
          catch (NumberFormatException nfe)
               return false;
          m_rangeSet = true;
          return m_rangeSet;
     }     //     setRange
      * Set and check DisplayType
      * @param displayType display type
     public void setDisplayType (int displayType)
          m_displayType = displayType;
          if (!DisplayType.isNumeric(displayType))
               m_displayType = DisplayType.Number;
          m_format = DisplayType.getNumberFormat(displayType);
          m_text.setDocument (new MDocNumber(displayType, m_format, m_text, m_title));
     }   // setDisplayType
      *     Set ReadWrite
      * @param value value
     public void setReadWrite (boolean value)
          if (m_text.isReadWrite() != value)
               m_text.setReadWrite(value);
          if (m_button.isReadWrite() != value)
               m_button.setReadWrite(value);
          //     Don't show button if not ReadWrite
          if (m_button.isVisible() != value)
               m_button.setVisible(value);
     }     //     setReadWrite
      *     IsReadWrite
      * @return true if rw
     public boolean isReadWrite()
          return m_text.isReadWrite();
     }     //     isReadWrite
      *     Set Mandatory (and back bolor)
      * @param mandatory mandatory
     public void setMandatory (boolean mandatory)
          m_text.setMandatory(mandatory);
     }     //     setMandatory
      *     Is it mandatory
      * @return true if mandatory
     public boolean isMandatory()
          return m_text.isMandatory();
     }     //     isMandatory
      *     Set Background
      * @param color color
     public void setBackground(Color color)
          m_text.setBackground(color);
     }     //     setBackground
      *     Set Background
      * @param error error
     public void setBackground (boolean error)
          m_text.setBackground(error);
     }     //     setBackground
      * Set Foreground
      * @param fg foreground
     public void setForeground(Color fg)
          m_text.setForeground(fg);
     }   // setForeground
      *     Set Editor to value
      * @param value value
     public void setValue(Object value)
          log.finest("Value=" + value);
          if (value == null)
               m_oldText = "";
          else
               m_oldText = m_format.format(value);
          //     only set when not updated here
          if (m_setting)
               return;
          m_text.setText (m_oldText);
          m_initialText = m_oldText;
          m_modified = false;
     }     //     setValue
      * Property Change Listener
      * @param evt event
     public void propertyChange (PropertyChangeEvent evt)
          if (evt.getPropertyName().equals(org.compiere.model.MField.PROPERTY))
               setValue(evt.getNewValue());
     }   // propertyChange
      *     Return Editor value
      * @return value value (big decimal or integer)
     public Object getValue()
          if (m_text == null || m_text.getText() == null || m_text.getText().length() == 0)
               return null;
          String value = m_text.getText();
          //     return 0 if text deleted
          if (value == null || value.length() == 0)
               if (!m_modified)
                    return null;
               if (m_displayType == DisplayType.Integer)
                    return new Integer(0);
               return Env.ZERO;
          if (value.equals(".") || value.equals(",") || value.equals("-"))
               value = "0";
          try
               Number number = m_format.parse(value);
               value = number.toString();      //     converts it to US w/o thousands
               BigDecimal bd = new BigDecimal(value);
               if (m_displayType == DisplayType.Integer)
                    return new Integer(bd.intValue());
               if (bd.signum() == 0)
                    return bd;
               return bd.setScale(m_format.getMaximumFractionDigits(), BigDecimal.ROUND_HALF_UP);
          catch (Exception e)
               log.log(Level.SEVERE, "Value=" + value, e);
          if (m_displayType == DisplayType.Integer)
               return new Integer(0);
          return Env.ZERO;
     }     //     getValue
      * Return Display Value
      * @return value
     public String getDisplay()
          return m_text.getText();
     }   // getDisplay
      *      Get Title
      *     @return title
     public String getTitle()
          return m_title;
     }     //     getTitle
      *      Plus - add one.
      *      Also sets Value
      *     @return new value
     public Object plus()
          Object value = getValue();
          if (value == null)
               if (m_displayType == DisplayType.Integer)
                    value = new Integer(0);
               else
                    value = Env.ZERO;
          //     Add
          if (value instanceof BigDecimal)
               value = ((BigDecimal)value).add(Env.ONE);
          else
               value = new Integer(((Integer)value).intValue() + 1);
          setValue(value);
          return value;
     }     //     plus
      *      Minus - subtract one, but not below minimum.
      *      Also sets Value
      *     @param minimum minimum
      *     @return new value
     public Object minus (int minimum)
          Object value = getValue();
          if (value == null)
               if (m_displayType == DisplayType.Integer)
                    value = new Integer(minimum);
               else
                    value = new BigDecimal(minimum);
               setValue(value);
               return value;
          //     Subtract
          if (value instanceof BigDecimal)
               BigDecimal bd = ((BigDecimal)value).subtract(Env.ONE);
               BigDecimal min = new BigDecimal(minimum);
               if (bd.compareTo(min) < 0)
                    value = min;
               else
                    value = bd;
          else
               int i = ((Integer)value).intValue();
               i--;
               if (i < minimum)
                    i = minimum;
               value = new Integer(i);
          setValue(value);
          return value;
     }     //     minus
      *     Action Listener
      * @param e event
     public void actionPerformed (ActionEvent e)
          log.config(e.getActionCommand());
          if (ValuePreference.NAME.equals(e.getActionCommand()))
               if (MRole.getDefault().isShowPreference())
                    ValuePreference.start (m_mField, getValue());
               return;
          if (e.getSource() == m_button)
               m_button.setEnabled(false);
               String str = startCalculator(this, m_text.getText(), m_format, m_displayType, m_title);
               m_text.setText(str);
               m_button.setEnabled(true);
               try
                    fireVetoableChange (m_columnName, m_oldText, getValue());
               catch (PropertyVetoException pve)     {}
               m_text.requestFocus();
     }     //     actionPerformed
      *     Key Listener Interface
      * @param e event
     public void keyTyped(KeyEvent e)    {}
     public void keyPressed(KeyEvent e) {}
      *     Key Listener.
      *          - Escape           - Restore old Text
      *          - firstChange     - signal change
      * @param e event
     public void keyReleased(KeyEvent e)
          log.finest("Key=" + e.getKeyCode() + " - " + e.getKeyChar()
                       + " -> " + m_text.getText());
          // ESC
          if (e.getKeyCode() == KeyEvent.VK_ESCAPE)
               m_text.setText(m_initialText);
          m_modified = true;
          m_setting = true;
          try
               if (e.getKeyCode() == KeyEvent.VK_ENTER)     //     10
                    fireVetoableChange (m_columnName, m_oldText, getValue());
                    fireActionPerformed();
               else     //     indicate change
                    fireVetoableChange (m_columnName, m_oldText, null);
          catch (PropertyVetoException pve)     {}
          m_setting = false;
     }     //     keyReleased
      *     Focus Gained
      * @param e event
     public void focusGained (FocusEvent e)
          if (m_text != null)
               m_text.selectAll();
     }     //     focusGained
      *     Data Binding to MTable (via GridController.vetoableChange).
      * @param e event
     public void focusLost (FocusEvent e)
     //          log.finest(e.toString());
          //     APanel - Escape
          if (e.getOppositeComponent() instanceof AGlassPane)
               m_text.setText(m_initialText);
               return;
          try
               fireVetoableChange (m_columnName, m_initialText, getValue());
               fireActionPerformed();
          catch (PropertyVetoException pve)     {}
     }   // focusLost
      *     Invalid Entry - Start Calculator
      * @param jc parent
      * @param value value
      * @param format format
      * @param displayType display type
      * @param title title
      * @return value
     public static String startCalculator(Container jc, String value,
          DecimalFormat format, int displayType, String title)
          log.config("Value=" + value);
          BigDecimal startValue = new BigDecimal(0.0);
          try
               if (value != null && value.length() > 0)
                    Number number = format.parse(value);
                    startValue = new BigDecimal (number.toString());
          catch (ParseException pe)
               log.info("InvalidEntry - " + pe.getMessage());
          //     Find frame
          Frame frame = Env.getFrame(jc);
          //     Actual Call
          Calculator calc = new Calculator(frame, title,
               displayType, format, startValue);
          AEnv.showCenterWindow(frame, calc);
          BigDecimal result = calc.getNumber();
          log.config( "Result=" + result);
          calc = null;
          if (result != null)
               return format.format(result);
          else
               return value;          //     original value
     }     //     startCalculator
      * Set Field/WindowNo for ValuePreference
      * @param mField field
     public void setField (MField mField)
          m_mField = mField;
          if (m_mField != null
               && MRole.getDefault().isShowPreference())
               ValuePreference.addMenu (this, popupMenu);
     }   // setField
      *      Remove Action Listner
      *      @param l Action Listener
     public void removeActionListener(ActionListener l)
          listenerList.remove(ActionListener.class, l);
     }     //     removeActionListener
      *      Add Action Listner
      *      @param l Action Listener
     public void addActionListener(ActionListener l)
          listenerList.add(ActionListener.class, l);
     }     //     addActionListener
      *      Fire Action Event to listeners
     protected void fireActionPerformed()
          int modifiers = 0;
          AWTEvent currentEvent = EventQueue.getCurrentEvent();
          if (currentEvent instanceof InputEvent)
               modifiers = ((InputEvent)currentEvent).getModifiers();
          else if (currentEvent instanceof ActionEvent)
               modifiers = ((ActionEvent)currentEvent).getModifiers();
          ActionEvent ae = new ActionEvent (this, ActionEvent.ACTION_PERFORMED,
               "VNumber", EventQueue.getMostRecentEventTime(), modifiers);
          // Guaranteed to return a non-null array
          Object[] listeners = listenerList.getListenerList();
          // Process the listeners last to first, notifying those that are interested in this event
          for (int i = listeners.length-2; i>=0; i-=2)
               if (listeners==ActionListener.class)
                    ((ActionListener)listeners[i+1]).actionPerformed(ae);
     }     //     fireActionPerformed
}     //     VNumber

If getValue() returns null, you need to trace the execution of the code and figure out which sequence of code is leading to the return of null. This method looks complex - a lot of if statements. If you do not have a debugger, put System.out.println statements inside the method to figure out what's going on.

Swing: when trying to get the values from a JTable inside an event handler

Hi,
I am trying to write a graphical interface to compute the Gauss Elimination procedure for solving linear systems. The class for computing the output of a linear system already works fine on console mode, but I am fighting a little bit to make it work with Swing.
I put two buttons (plus labels) and a JTextField . The buttons have the following role:
One of them gets the value from the JTextField and it will be used to the system dimension. The other should compute the solution. I also added a JTable so that the user can type the values in the screen.
So whenever the user hits the button Dimensiona the program should retrieve the values from the table cells and pass them to a 2D Array. However, the program throws a NullPointerException when I try to
do it. I have put the code for copying this Matrix inside a method and I call it from the inner class event handler.
I would thank you very much for the help.
Daniel V. Gomes
here goes the code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import AdvanceMath.*;
public class MathF2 extends JFrame {
private JTextField ArrayOfFields[];
private JTextField DimOfSis;
private JButton Calcular;
private JButton Ativar;
private JLabel label1;
private JLabel label2;
private Container container;
private int value;
private JTable DataTable;
private double[][] A;
private double[] B;
private boolean dimensionado = false;
private boolean podecalc = false;
public MathF2 (){
super("Math Calcs");
Container container = getContentPane();
container.setLayout( new FlowLayout(FlowLayout.CENTER) );
Calcular = new JButton("Resolver");
Calcular.setEnabled(false);
Ativar = new JButton("Dimensionar");
label1 = new JLabel("Clique no bot�o para resolver o sistema.");
label2 = new JLabel("Qual a ordem do sistema?");
DimOfSis = new JTextField(4);
DimOfSis.setText("0");
JTable DataTable = new JTable(10,10);
container.add(label2);
container.add(DimOfSis);
container.add(Ativar);
container.add(label1);
container.add(Calcular);
container.add(DataTable);
for ( int i = 0; i < 10 ; i ++ ){
for ( int j = 0 ; j < 10 ; j++) {
DataTable.setValueAt("0",i,j);
myHandler handler = new myHandler();
Calcular.addActionListener(handler);
Ativar.addActionListener(handler);
setSize( 500 , 500 );
setVisible( true );
public static void main ( String args[] ){
MathF2 application = new MathF2();
application.addWindowListener(
new WindowAdapter(){
public void windowClosing (WindowEvent event)
System.exit( 0 );
private class myHandler implements ActionListener {
public void actionPerformed ( ActionEvent event ){
if ( event.getSource()== Calcular ) {
if ( event.getSource()== Ativar ) {
//dimensiona a Matriz A
if (dimensionado == false) {
if (DimOfSis.getText()=="0") {
value = 2;
} else {
value = Integer.parseInt(DimOfSis.getText());
dimensionado = true;
Ativar.setEnabled(false);
System.out.println(value);
} else {
Ativar.setEnabled(false);
Calcular.setEnabled(true);
podecalc = true;
try {
InitValores( DataTable, value );
} catch (Exception e) {
System.out.println("Erro ao criar matriz" + e );
private class myHandler2 implements ItemListener {
public void itemStateChanged( ItemEvent event ){
private void InitValores( JTable table, int n ) {
A = new double[n][n];
B = new double[n];
javax.swing.table.TableModel model = table.getModel();
for ( int i = 0 ; i < n ; i++ ){
for (int j = 0 ; j < n ; j++ ){
Object temp1 = model.getValueAt(i,j);
String temp2 = String.valueOf(temp1);
A[i][j] = Double.parseDouble(temp2);

What I did is set up a :
// This code will setup a listener for the table to handle a selection
players.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
ListSelectionModel rowSM = players.getSelectionModel();
rowSM.addListSelectionListener(new Delete_Player_row_Selection(this));
//Class will take the event and call a method inside the Delete_Player object.
class Delete_Player_row_Selection
implements javax.swing.event.ListSelectionListener
Delete_Player adaptee;
Delete_Player_row_Selection (Delete_Player temp)
adaptee = temp;
public void valueChanged (ListSelectionEvent listSelectionEvent)
adaptee.row_Selection(listSelectionEvent);
in the row_Selection function
if(ex.getValueIsAdjusting()) //To remove double selection
return;
ListSelectionModel lsm = (ListSelectionModel) ex.getSource();
if(lsm.isSelectionEmpty())
System.out.println("EMtpy");
else
int selected_row = lsm.getMinSelectionIndex();
ResultSetTableModel model = (ResultSetTableModel) players.getModel();
String name = (String) model.getValueAt(selected_row, 1);
Integer id = (Integer) model.getValueAt(selected_row, 3);
This is how I got info out of a table when the user selected it

How to get the value from a JavaScript and send the same to Java file?

Hi.
How to get the value from a JavaScript (this JS is called when an action invoked) and send the value from the JS to a Java file?
Thanks and regards,
Leslie V

Yes, I am trying with web application.
In the below code, a variable 'message' carries the needed info. I would like to send this 'message' variable with the 'request'.
How to send this 'message' with and to the 'request'?
Thanks for the help :-)
The actual JS code is:
function productdeselection()
var i=0;
var j=0;
var deselectedproduct = new Array(5);
var message = "Are you sure to delete Product ";
mvi=document.forms[0].MVI;
mei=document.forms[0].MEI;
lpi=document.forms[0].LPI;
if(null != mvi)
++i;
if(null != mei )
++i;
if(null != lpi)
++i;
if(null != mvi && mvi.checked)
deselectedproduct[++j]="MVI?";
if(null != mei && mei.checked)
deselectedproduct[++j]="GAP?";
if(null != lpi && lpi.checked)
deselectedproduct[++j]="LPI?";
if( 0!=j)
if(i!=j)
for (x=0; x<deselectedproduct.length; x++)
if(null != deselectedproduct[x])
message =message+ "-" +deselectedproduct[x];
alert(message);
else
//alert(" You cannot remove all products!");
return false;
return true;
}

How to get the value from databank

Hi,
How to get the value from databank? and how to set the same value to visual script object?
thanks,
ra

Hi,
You can use GetDatabankValue(HeaderName, Value) to get the value from databank and SetDataBankValue(HeaderName, Value) to set the value to databank.
You can refer to the API Reference to see list of associated functions and techniques we can use with related to Data Bank.
This is the for OFT but if you are using Open Script then you have direct access for getting the databank value but when it comes to setting a value you have to use File operation and write you own methods to do the set operation.
Thanks
Edited by: Openscript User 100 on Nov 13, 2009 7:01 AM

Why iam unable to get the valu from combobox

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