Help with Combo box

I am having problems with displaying items on a combo box.
The combo box will allow a user to select a fixed list of values for a database column.
I created the combo box and set the dataItemUsageMode property in the property inspector to "USE FOR UPDATE". The list is bound to the corresponding column of the query RowSetInfo.
In the code, I hard coded the items to be displayed using comboboxName.addItem(). When I run the form, the list of hard coded values shows up. However, when I select an item, the selected item is not displayed on the screen.
Could anyone tell me what I am doing wrong?
null

I had a problem like this when I inserted a new row into the given Rowset.
Try setting initial value for the attribute that you are using for update.
eg. if you have this:
comboBoxControl1.setDataItemNameForUpdate("infobus:/oracle/sessionInfo1/rowSetInfo1/Status");
comboBoxControl1.addItem(new String("Silver"));
comboBoxControl1.addItem(new String("Gold"));
comboBoxControl1.addItem(new String("Platinum"));
set the attribute as follows:
StatusrowSetInfo1.getImmediateAccess().setValue(new String("Silver"));
or any other way you can set that attribute.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by kms98 ():
I am having problems with displaying items on a combo box.
The combo box will allow a user to select a fixed list of values for a database column.
I created the combo box and set the dataItemUsageMode property in the property inspector to "USE FOR UPDATE". The list is bound to the corresponding column of the query RowSetInfo.
In the code, I hard coded the items to be displayed using comboboxName.addItem(). When I run the form, the list of hard coded values shows up. However, when I select an item, the selected item is not displayed on the screen.
Could anyone tell me what I am doing wrong? <HR></BLOCKQUOTE>
null

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What im trying to do is put a string array into this combo box called jComboBoxParts how do i make it show? Right now when i load it, all i see is "Item1..."Item2...etc". Here is my code.
String[] partsString = { "oil can", "windshield", "tires", "v6 Cylinder head", "fuse"};
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eva21 wrote:
What im trying to do is put a string array into this combo box called jComboBoxParts how do i make it show? Right now when i load it, all i see is "Item1..."Item2...etc". Here is my code.
String[] partsString = { "oil can", "windshield", "tires", "v6 Cylinder head", "fuse"};
JComboBox[] jComboBoxParts = new JComboBox[partsString.length];
for(int i=0; i < partsString.length; i++)
jComboBoxParts[i] = new *JComboBox(*partsString);
with the bolded work i get an error. Please help.
That's ugly in so many ways...
This:
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public static void main(String[] argv) {
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}Another alternative, if you don't have the array of strings available when you instantiate your JComboBox, you could do something like this:
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For your question
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Hi Everyone,
below is my code. Please find my question between '?'ed lines.
// CREATE COMBO BOX
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     String [] possible_values = get_possible_values(val[i]);
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// ? I WANT TO UPDATE usr_val[i] here ?
// ? how could i get the value of "i" or
// combobox_counter in this block?????????
// ???????????????????????????????<?????
     comboboxcount++;
Thanks & Regards
Vikas Talwar

Hi Everyone,
below is my code. Please find my question between '?'ed lines.
// CREATE COMBO BOX
if(obj.equals(CSV_COMBO_BOX))
     _combobox[_combobox_count] = new JComboBox();
     //get possible value for combo box
     String [] possible_values = get_possible_values(val);
     for(int i=0; i < possible_values.length; ++i)
     _combobox[_combobox_count].addItem(possible_values);
     //set the default value to usr_val
     _combobox[_combobox_count].setSelectedItem(usr_val);
     // add to panel
     panel.add("tab",_combobox[_combobox_count]);
     // listner
     _combobox[_combobox_count].addItemListener(new ItemListener(){
            public void itemStateChanged(ItemEvent e)
          // ? I WANT TO UPDATE usr_val here ?
          // ? how could i get the value of "i" or
          // _combo_box_counter in this block?????????
          // ???????????????????????????????<?????
_combobox_count++;
}I have two arrays: one called "val" which is an array of string arrays that you use to populate a JComboBox, and the other one is called "usr_val" that holds strings and is used to set the JComboBox default values. You want to change the default value when the selected item in the corresponding JComboBox has changed. To manage your arrays and JComboBoxes, you have
one counter "i" which seems to count the arrays of string arrays and the array with the default strings and one counter "_combobox_count" which counts the JComboBoxes that have been genererated with the help of these arrays. Obviously, the arrays could be used to generate a different JComponent as well, in which case "i" and "_combobox_count" will have different values. Both "i" and "_combobox_count" are clearly available within the if-block, so you don�t need any extra tricks to access them. What happens if you directly access "i" or "_combobox_count" from within the "itemStateChanged"-method?
Thanks & Regards
Vikas Talwar

PROBLEM WITH COMBO BOXES..

HI,
I AM HAVING TWO COMBO BOXES>>
COMBO1------ DEPT NAME
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ANY PLS HELP ME......
I WANT FULL CODE FOR THAT......

You do this by combining JSPs with a central servlet. I don't know how to do it with just one JSP on its own.
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Hi All,
I have a combo box with some options. User has to select one option and has to submit the form. If he doesnt select any option and submit the form i need to display an error message saying that PLEASE SELECT AN OPTION AND SUBMIT.
I am using RATIONAL APPLICATION DEVELOPER 6.0 as my IDE.
please help me its an urgent requirement

On submit check if he has an option selected.
If not do the following:
FacesContext.getCurrentInstance().addMessage(componentId,
new FacesMessage(FacesMessage.SEVERITY_ERROR,
errorMessage,
errorMessage));
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hi every one, i have a user form with a matrix(uid = 37) with some columns and one column is combo box. in that combo box i have to get values from OSTC table (Code)...i have written this code ..i dont know how to access the combo box so that i can get values to combo box when i execute the prg....
oitem = oForm.Items.Item("37") 37 is uid of omatrix2
            oMatrix2 = oitem.Specific
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Call objMain.objUtilities.LoadComboValuesForMatrix(FormUID, "27", "SELECT Code,Name FROM OSTC Order by Code", "V_19", objMatrix.RowCount)
Public Sub LoadComboValuesForMatrix(ByVal FormUID As String, ByVal ItemUID As String, ByVal strQuery As String, ByVal MtrxColId As String, ByVal Rowcount As Integer)
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            GC.WaitForPendingFinalizers()
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        End Try
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Problem with Combo Box in a Dialog Box

I have a dialog box that includes a combo box.
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ComboBox with Sequence showing, then Enter Identifyer
Textbox URL
Textbox Enter Resource 1
Textbox Enter Resource 2
Textbox Enter Resource 3
Textbox Enter Resource 4
Textbox Enter Resource 5
It's putting the combo box in the first text field...it should be
ComboBox with Sequence showing
URL Textbox
Enter Identifyer Textbox
Enter Resource 1 Textbox
Enter Resource 2 Textbox...
Here is my code:
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import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
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private JTextField valueBox1;
private JTextField valueBox2;
private JTextField valueBox3;
private JTextField valueBox4;
private JTextField valueBox5;
public String value1;
public String value2;
public String value3;
public String value4;
public String value5;
private JTextField identifyerBox;
private JTextField URLBox;
private JTextField attrBox;
public String identifyer;
public String URL;
public int choice;
* Constructor.
public AddContainer(Frame parent) {
super(parent, "Add Container", true);
JPanel pp = new JPanel(new DialogLayout2());
pp.setBorder(new CompoundBorder(
new EtchedBorder(EtchedBorder.RAISED),
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ActionListener contlst = new ActionListener() {
public void actionPerformed(ActionEvent e) {
JComboBox cb = (JComboBox)e.getSource();
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//Create the combo box, select the item at index 0.
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ContList.setSelectedIndex(0);
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pp.add(ContList);
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identifyerBox = new JTextField(16);
pp.add(identifyerBox);
pp.add(new JLabel("URL"));
URLBox = new JTextField(16);
pp.add(URLBox);
pp.add(new JLabel("Enter Resource 1"));
valueBox1 = new JTextField(25);
pp.add(valueBox1);
pp.add(new JLabel("Enter Resource 2"));
valueBox2 = new JTextField(25);
pp.add(valueBox2);
pp.add(new JLabel("Enter Resource 3"));
valueBox3 = new JTextField(25);
pp.add(valueBox3);
pp.add(new JLabel("Enter Resource 4"));
valueBox4 = new JTextField(25);
pp.add(valueBox4);
pp.add(new JLabel("Enter Resource 5"));
valueBox5 = new JTextField(25);
pp.add(valueBox5);
JPanel p = new JPanel(new DialogLayout2());
p.setBorder(new EmptyBorder(10, 10, 10, 10));
p.add(pp);
ActionListener lst = new ActionListener() {
public void actionPerformed(ActionEvent evt) {
identifyer = identifyerBox.getText();
URL = URLBox.getText();
value1 = valueBox1.getText();
value2 = valueBox2.getText();
value3 = valueBox3.getText();
value4 = valueBox4.getText();
value5 = valueBox5.getText();
dispose();
JButton saveButton = new JButton("ADD");
saveButton.addActionListener(lst);
getRootPane().setDefaultButton(saveButton);
getRootPane().registerKeyboardAction(lst,
KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0),
JComponent.WHEN_IN_FOCUSED_WINDOW);
p.add(saveButton);
JButton cancelButton = new JButton("Cancel");
lst = new ActionListener() {
public void actionPerformed(ActionEvent evt) {
dispose();
cancelButton.addActionListener(lst);
getRootPane().registerKeyboardAction(lst,
KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
JComponent.WHEN_IN_FOCUSED_WINDOW);
p.add(cancelButton);
getContentPane().add(p, BorderLayout.CENTER);
pack();
setResizable(false);
setLocationRelativeTo(parent);

Seems the problem is in your DialogLayout2 class which must be in package dl. I tried a grid layout and got something that looks like what you described. I laid out pp with a gridbag layout.
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
//import dl.*;
* Dialog to enter container information
public class jello extends JDialog {
private JTextField valueBox1;
private JTextField valueBox2;
private JTextField valueBox3;
private JTextField valueBox4;
private JTextField valueBox5;
public String value1;
public String value2;
public String value3;
public String value4;
public String value5;
private JTextField identifyerBox;
private JTextField URLBox;
private JTextField attrBox;
public String identifyer;
public String URL;
public int choice;
* Constructor.
public jello(JFrame parent) {
    super(parent, "Add Container", true);
    GridBagLayout gridbag = new GridBagLayout();
    GridBagConstraints gbc = new GridBagConstraints();
    JPanel pp = new JPanel(gridbag);
                        //(new GridLayout(0,2));
                        //(new DialogLayout2());
    pp.setBackground(Color.red);
    pp.setBorder(
      new CompoundBorder(
        new EtchedBorder(EtchedBorder.RAISED),
        new EmptyBorder(5,5,5,5)));
    String[] ContStrings = { "Sequence", "Bag", "Alternative" };
    // Add action listener.
    ActionListener contlst = new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        JComboBox cb = (JComboBox)e.getSource();
        int choice = (int)cb.getSelectedIndex();
    //Create the combo box, select the item at index 0.
    //Indices start at 0, so 2 specifies the Alternative
    JComboBox ContList = new JComboBox(ContStrings);
    ContList.setSelectedIndex(0);
    ContList.addActionListener(contlst);
    //Add combo box to panel.
    gbc.insets = new Insets(2,2,2,2);
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    gbc.gridwidth = gbc.REMAINDER;
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    identifyerBox = new JTextField(16);
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    pp.add(valueBox1, gbc);
    gbc.gridwidth = gbc.RELATIVE;
    pp.add(new JLabel("Enter Resource 2"), gbc);
    valueBox2 = new JTextField(25);
    gbc.gridwidth = gbc.REMAINDER;
    pp.add(valueBox2, gbc);
    gbc.gridwidth = gbc.RELATIVE;
    pp.add(new JLabel("Enter Resource 3"), gbc);
    valueBox3 = new JTextField(25);
    gbc.gridwidth = gbc.REMAINDER;
    pp.add(valueBox3, gbc);
    gbc.gridwidth = gbc.RELATIVE;
    pp.add(new JLabel("Enter Resource 4"), gbc);
    valueBox4 = new JTextField(25);
    gbc.gridwidth = gbc.REMAINDER;
    pp.add(valueBox4, gbc);
    gbc.gridwidth = gbc.RELATIVE;
    pp.add(new JLabel("Enter Resource 5"), gbc);
    valueBox5 = new JTextField(25);
    gbc.gridwidth = gbc.REMAINDER;
    pp.add(valueBox5, gbc);
    JPanel p = new JPanel();//(new DialogLayout2());
    p.setBackground(Color.blue);
    p.setBorder(new EmptyBorder(10, 10, 10, 10));
    p.add(pp);
    ActionListener lst = new ActionListener() {
      public void actionPerformed(ActionEvent evt) {
        identifyer = identifyerBox.getText();
        URL = URLBox.getText();
        value1 = valueBox1.getText();
        value2 = valueBox2.getText();
        value3 = valueBox3.getText();
        value4 = valueBox4.getText();
        value5 = valueBox5.getText();
        dispose();
    JButton saveButton = new JButton("ADD");
    saveButton.addActionListener(lst);
    getRootPane().setDefaultButton(saveButton);
    getRootPane().registerKeyboardAction(lst,
      KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0),
      JComponent.WHEN_IN_FOCUSED_WINDOW);
    p.add(saveButton);
    JButton cancelButton = new JButton("Cancel");
    lst = new ActionListener() {
      public void actionPerformed(ActionEvent evt) {
        dispose();
    cancelButton.addActionListener(lst);
    getRootPane().registerKeyboardAction(lst,
      KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
      JComponent.WHEN_IN_FOCUSED_WINDOW);
    p.add(cancelButton);
    parent.getContentPane().add(p, BorderLayout.CENTER);
    parent.pack();
    parent.setResizable(false);
//    setLocationRelativeTo(parent);
    parent.setVisible(true);
public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    new jello(frame);
    frame.setLocation(0,200);
}

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