How to insert new text,box from menu

Hi. ill just show the code.
from my menuclass

Code:

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aMenuItem.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e){
                if(e.getActionCommand().equals("New row")){
                createrow();

---

it calls the method createrow();

Code:

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public void createrow() {
               
                aTextField = new JTextField("", 30);
                aTextField.setBorder(BorderFactory.createLineBorder(Color.black));
                c.fill = GridBagConstraints.HORIZONTAL;
                c.ipady = 1;      //reset to default
                c.weighty = 1.0;  //request any extra vertical space
                c.anchor = GridBagConstraints.WEST; //bottom of space
                c.insets = new Insets(5,0,0,10);  //top padding
                c.gridy = 1; // what row.
                aPanel0.add(aTextField, c); //add TextField 1 to Panel
               
                selDbType1 = new JComboBox(dbType1);
                c.fill = GridBagConstraints.HORIZONTAL;
                c.ipady = 1;      //reset to default
                c.weighty = 1.0;  //request any extra vertical space
                c.anchor = GridBagConstraints.EAST; //bottom of space
                c.insets = new Insets(5,0,0,10);  //top padding
                c.gridy = 1; // what row
                selDbType1.setPreferredSize(new Dimension(80, 20)); // set the size for dropmenu
                selDbType1.setSelectedIndex(2); // set to 3 choice
                selDbType1.addActionListener(new ActionListener(){ // add action handler to combobox
        }

---

Can it be done this way. i also need c.gridy to be dynamic so it pops up at end of page. thankfull for any advice.
EDIT. Mabey should explain better what i want it to do. When a user pushes "new row" i want a new row containing 1 textfield and 1 combobox to insert at bottom of panel. they both need a uniqe id.

I'm having a bit of difficulty figuring out just what your problem is, but that could be my fault as it's Saturday morning, and I may have had a few beers too many last night.

Regardless, consider posting an SSCCE, a very short compilable and runnable program that depends on no outside files, data, images, that demonstrates your problem and that can be posted here (see the link for details). Then we can play with your code and more quickly understand the problems and more quickly help find a solution.

Much luck!

edit: it almost sounds as if you'd be better off using a JTable and a custom table model (derived from DefaultTableModel) as well as custom cell editor and renderer to allow comboboxes. Have you considered this?

If you want to see something like this in action, have a look at the Sun JTable tutorial here: JTable Tutorial. Look especially at the section marked "Using a Combo Box as an Editor". Then look at the source code for the demo program, as it's all there: http://java.sun.com/docs/books/tutor...enderDemo.java

Again, much luck!

Okey. this is something i just wrote quick to show my point.

Code:

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package test;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;

public class test {
        JTextField aTextField;
        public JMenuBar aOceanMenu() {
                // Start arkiv and exit
                JMenuBar aMenuBar = new JMenuBar();
                JMenu aMenu = new JMenu("Arkiv");
                JMenuItem aMenuItem = new JMenuItem("New row");
                aMenuItem.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e){
                if (e.getActionCommand().equals("New Row")){
                createrow();
                } // end getAction
                }});
                aMenu.add(aMenuItem);
                aMenuBar.add(aMenu);
                return aMenuBar;                                       
}        // end JMenu
       
        public JPanel thingsGUI() {
                  // Things to be on oceanGUI frame
                JLabel aLabel = new JLabel("hello");
                JPanel aPanel = new JPanel(new BorderLayout());
                aPanel.add(aLabel, BorderLayout.WEST);
                      aTextField = new JTextField("1", 30);
                aPanel.add(aTextField, BorderLayout.EAST);
                return aPanel;
                } // end gui-things
       
        public void createrow() { 
                JTextField aTextField;
                  JPanel aPanel = new JPanel(new BorderLayout());
                aTextField = new JTextField("2", 30);
                aPanel.add(aTextField, BorderLayout.EAST);
                System.out.println("calls");
                }
       
        private static void oceanGUI() {
                // create and show the gui
                JFrame aFrame = new JFrame("myGui 2");
                aFrame.setSize(600, 600);
                aFrame.setVisible(true);
                aFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                test frame = new test();
                aFrame.add(frame.thingsGUI(), BorderLayout.NORTH);
                test gui = new test();
                aFrame.setJMenuBar(gui.aOceanMenu());
            aFrame.pack();
        } // end oceanGui

        public static void main(String[] args) {
                // Run gui();
                SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                oceanGUI();

                } // end public void run()
        }// end invokeLater
);}// end viod main
}// end

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When the user push "New row" in menu i want the method createrow() to be called. and a new TextField to apper in my panel. Does this make any sence? :cool:

EDIT: Will have a look at those links.
EDIT: Mabey JTable can be used to list and edit the text i put in the file. But to enter it I dont think it sutible.

Also, your code posted above is not an SSCCE (it won't compile for one) and this will make it much harder for us to help you. I strongly suggest you read the link and abide by its rules. Doing so will increase your chances of getting better help faster.

Sorry did miss the import and package. Corrected that now! It runs.

For eg, here's an "almost" SSCCE (it's too long):

Code:

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import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.*;

import javax.swing.*;

public class AddNewRow {
  private static final Dimension MAIN_SIZE = new Dimension(400, 300);
  private JPanel mainPanel = new JPanel(new BorderLayout(5, 5));
  private JMenuBar menuBar = new JMenuBar();
  private ColumnPanel columnPanel = new ColumnPanel();
  private int rowCount = 0;

  public AddNewRow() {
    mainPanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
    mainPanel.setPreferredSize(MAIN_SIZE);
    mainPanel.add(new JScrollPane(columnPanel.getComponent()));

    JMenu aMenu = new JMenu("Arkiv");
    JMenuItem aMenuItem = new JMenuItem("New row");
    aMenuItem.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        createrow();
      }
    });
    aMenu.add(aMenuItem);
    menuBar.add(aMenu);

  }

  private void createrow() {
    JTextField textField = new JTextField(String.valueOf(rowCount + 1), 12);
    rowCount++;
    JPanel panel = new JPanel(new FlowLayout(FlowLayout.LEFT));
    panel.add(textField);
    columnPanel.addRow(panel);

  }

  public JComponent getComponent() {
    return mainPanel;
  }

  public JMenuBar getJMenuBar() {
    return menuBar;
  }

  private static void createAndShowUI() {
    AddNewRow addNewRow = new AddNewRow();
    JFrame frame = new JFrame("AddNewRow");
    frame.getContentPane().add(addNewRow.getComponent());
    frame.setJMenuBar(addNewRow.getJMenuBar());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
  }

  public static void main(String[] args) {
    java.awt.EventQueue.invokeLater(new Runnable() {
      public void run() {
        createAndShowUI();
      }
    });
  }
}

class ColumnPanel {
  private JPanel mainPanel = new JPanel();

  public ColumnPanel() {
    mainPanel.setLayout(new GridLayout(0, 1, 5, 5));
  }

  public JComponent getComponent() {
    return mainPanel;
  }

  public void addRow(JComponent component) {
    mainPanel.add(component);
    mainPanel.revalidate();
  }
}

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Quote:

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Originally Posted by ocean

Sorry did miss the import and package. Corrected that now! It runs.

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it runs, but aPanel is local only to a method and is completely invisible to the rest of the class.

Thank you Fubarable. Will follow that rule from now on. By the way. how do i put a post to Solved?

Hmm you really did put me to work here. Think i finally understand most of your code. I have some questions, but I save them for later. will try and solv it first.

Still it would be better for you to use a JTable than the cr@p that I posted.

Yes for my "use" and "edit functions i will use Jtable. but this is perfect for the "create" part. Im trying to make a program that you can make to what ever you like. eg if you want a adress book you go in and add how many field you want ex name, adress phone. save it. then open it and use(put in information) edit(change/look at information) and so on. But after all, this is my first week in the Java world and I have so much to learn. Thank you for taking your time to help us that are new.