Add « JComboBox « Java Swing Q&A





1. How do I add a separator to a JComboBox in Java?    stackoverflow.com

I have a JComboBox and would like to have a separator in the list of elements. Is this possible at all in Java? A sample scenario where this would come in handy ...

2. Java: How can I add a JMenu to a JPanel or create a drop down button?    stackoverflow.com

is there any way to add a JMenuItem to a JPanel so that I can create a button to show multiple options, like the latest news button in firefox, under the ...

3. How to add icon near arrow icon for JComboBox    stackoverflow.com

I would like to create JComboBox control similar with the URL textbox of Firefox. Does anyone know how to customize the textfield of the JComboBox. I want to add some icons ...

4. How to add default item like Add New Item at top of JComboBox    stackoverflow.com

How can I add a default entry at the top of a JComboBox such as Add New Item in order to allow a user to click this entry and get a ...

5. JComboBox adds items for one ArrayList of strings, but disappears from GUI for another    stackoverflow.com

I have 2 JComboBox components added to my GUI productComboBox and categoryComboBox, with the following item listeners defined for each:

    categoryComboBox.addItemListener(new GoItemListener());
    productComboBox.addItemListener(new ProductItemListener());
The user ...

6. Adding ActionListener to JComboBox without items not working    stackoverflow.com

Below is the source code for UseTest.java. Why doesn't it work?

import javax.swing.* ;
import java.awt.* ;
import java.awt.event.* ;

class Test implements ActionListener{
 JFrame f ;
 JPanel p ;
 JComboBox cb ;
 JLabel l ...

7. Solved: Why does JComboBox seem to add multiple item instances?    stackoverflow.com

This Java Swing JComboBox is modified based on changes to the system configuration. In the example image, "Press to Select" is the case where nothing is selected and there is one "Test ...

8. JCombobox adding different color to each item    stackoverflow.com

I have a doubt on Jcombobox... for example, i have a gui which contains a jcombo box and a button... In Jcombo box ,i have added string array object like color 1,color ...

9. adding an action listener to a JComboBox    stackoverflow.com

I just want to print the selected option in the combo box, to a textfield. Please explain what's wrong because i have to complete it & explain it in class. Any ...





10. JComboBox popup is not resized if i add item when it is visible    stackoverflow.com

I have a problem with a JComboBox popup. My JComboBox has an autocompletition implementation like google search box. So, the problem is if I add or remove items when popup is visible ...

11. How do I create dynamic combo box in Java which adds and removes when clicking the button?    stackoverflow.com

combo box Hi. I want to make a dynamic combo box with the example above, which when pressing "+", new combo box appears below and when pressing "-", the combo ...

12. How to add items to a JComboBox from an External File?    stackoverflow.com

Please i need some help in adding items to a JComboBox in Java from an external file. Here is my code so far:

 //Loading the Names:

     ...

13. How to avoid firing actionlistener event of JComboBox when an item is get added into it dynamically in java?    stackoverflow.com

I need your suggestions and guidence on following task. I have a frame which has two JComboBoxes supposed they are named combo1 and combo2, a JTable and other components. At initial stage when ...

14. add ListSelectionListener on JComboBox    stackoverflow.com

I'm quite new to Java Swing. And I'm stuck on trying to add a ListSelectionListener on a JComboBox instance. It seems only the ListSelectionModel interface has addListSelectionListener method. I kind of ...

15. add two value to combobox    stackoverflow.com

In c# we can add a text and a value to each items of combobox, I want to know is it possible in Java also? if not please advice.

16. java add items to JcomboBox from Database    stackoverflow.com

can someon help me to add items to combobox from Access database. my code:

    String sql = "SELECT * FROM Owner,Cars "
        ...





17. Adding vectors to empty JcomboBox    stackoverflow.com

I am working on a program that integrates with mysql. I am querying the database and using a vector to populate a JcomboBox with the results . This is done as the ...

18. Adding an Action listener to a JComboBox    stackoverflow.com

I'd like to know how can I add a ActionListener to JComboBox. I'm using AWT. Can you explain it to me? Thanks.

19. adding data to a combobox with data from sql - java    stackoverflow.com

I'm starting to program in Java with Sql. The problem Im having is that when I try to fill a combobox with data that I have in a table in sql, it ...

20. After adding items dynamically to JComboBox in swing, those values are not appeared in Combobox    stackoverflow.com

Vector comboBoxItems=new Vector();
DefaultComboBoxModel model;
//ComboBox Items have gotten from Data Base initially.
model = new DefaultComboBoxModel(ComboBoxItems);
JComboBox box=new JComboBox(model);
  1. Now, i added this combo box to a Panel
  2. if we add some items in Data Base ...

21. Adding item to JComboBox from different class    stackoverflow.com

I have been trying to get a JComboBox to update when a new item is added to a backend database. In the actual code there is a separate class that handles an ...

22. code for integers 1 to 100 in a JComboBox, not adding them one by one    stackoverflow.com

I'm new in programming and trying to understand the basics. im trying to compute two integers from a JComboBox and have the result in a JTextField when the JButton is clicked. ...

23. How to add a key listener to JComboBox with AutoCompleteSupport (glazedlists) in Java SE    stackoverflow.com

How do I add a KeyListener to JComboBox with "AutoCompleteSupport" (glazedlists) in Java SE. I am working on a small program which has a JComboBox that works with AutoCompleteSupport. I want ...

24. Problem in adding items to jComboBox    forums.netbeans.org

I have generated a GUI from netbeans in which I have placed a combobox too. By default, the items in combobox are item1, item2, item3, item4. But I want my own ...

25. Adding items to JComboBox    forums.netbeans.org

Hello, I need to add items queried from a database to a JComboBox at startup of the application. The application is developed in Netbeans. I know how to add items to ...

26. Adding JComboBox to JToolBar    forums.netbeans.org

Hi When I add a JComboBox to a JToolBar in the GUI Builder the combo stretches to occupy the entire toolbar. However, when I run the app. it's length as just as required. Selecting the combo box I am unable to manually resize it and can't see a property to set the size. What do other people do? Graham

28. This is really bad => How to add a combobox to an existing textfield dynamically    coderanch.com

Hi I have designed a bean with a combination of labels and textfields . The value of the textfield is dependent on certain other attributes. So 1. If one of these other attributes is a string, the textfield should accept only strings 2. If one of these other attributes is an Integer, then the textfield should accept only integers. 3. If ...

31. How to add elements to Combobox    coderanch.com

Well, if I decifered your code correctly, it appears that you are cloning 1 vector and then placing that vector in the combobox two different times. Now, my first question would be do the values of that vector change so that you know for sure it is not working? Second question, Are you adding values to the combobox or are you ...

32. User can add Item in JComboBox list ??    coderanch.com

33. adding items to jcombo box    coderanch.com

34. adding objects to Combo Boxes in SWT    coderanch.com

Viewers allow you to create widgets while still using your model objects. If you use an SWT widget directly, you have to convert your objects into the strings and images expected by SWT. Viewers act as adapters on SWT widgets, handling the common code for handling widget events that you would otherwise have to implement yourself.

35. NullPoniter Exception while Adding in JComboBox    coderanch.com

Hi All, My application is a Applet - EJB based and Server is sending Serialized Objects to add in to the JCOMBOBOX object. I have the following Exception coming up after a few iteratons ( 100 - 200 ) of poping up the screen again & again after closing which I am doing at a normal speed. ----------------------------------------------------------------- List lstSeverities = ...

36. Want to add a dropdown Jlist    coderanch.com

37. Adding Padding to JComboBox    coderanch.com

> I assume I would need to implement some kind of renderer import javax.swing.*; import java.awt.*; class Testing { public void buildGUI() { String[] cities = {"London","Madrid","New York","Paris","Rome","Sydney","Tokyo"}; JComboBox cbo = new JComboBox(cities); cbo.setRenderer(new IndentedRenderer()); JFrame f = new JFrame(); f.getContentPane().add(cbo); f.pack(); f.setLocationRelativeTo(null); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setVisible(true); } class IndentedRenderer extends DefaultListCellRenderer { public Component getListCellRendererComponent(JList list,Object value, int index,boolean isSelected,boolean cellHasFocus) { ...

38. JPopupMenu: add JComboBox, close via JButtons    coderanch.com

Hi, I am working on a GUI for which I wanted to have "roll menus", i.e. the user clicks on an area and a dialog opens in which the user can do stuff. If finished, registered listeners should be informed if anything interesting has happened. I have written an editor class that extends JButton. Mouse events are successfully captured, i.e. no ...

39. adding items in combo box?    coderanch.com

Hello Ranchers, Help me out with this small issue! How do you add items in combo box from back end? Its clear with list but i don't know the functions used for combo box! In list I used a vector and added elements to list by "listname.setListData(vectorname)" .. Can a combo box accept data from vector? If so what is the ...

40. add item in jcombobox from database    coderanch.com

Please use code tags. That will make your code easier to read. Now, about your code. As I see it, you create your student combo box when you need it. You set its bounds but you don't add it to any control. Perhaps that is in the calling method. Either way, the setBounds is not encouraged; you should use a proper ...

41. Add data into database from jcombobox    coderanch.com

42. Problem adding JComboBox to JFrame    coderanch.com

Hi! I want to add a JComboBox to JFrame. My code: public class Customer extends javax.swing.JFrame { SqlConnection sql = new SqlConnection(); ResultSet rs = sql.sqlSelect("SELECT * FROM members WHERE members.id = " + txtMemberId.getText() + " ORDER BY dateVisit DESC"); try { if (rs.next()) { Vector model = new Vector(); do { model.addElement(new Item(rs.getInt("id"), rs.getString("datetime"))); } while (rs.next()); JComboBox combobox ...

43. Adding addPopupMenuListener to JCombo Box through Mouse Event    coderanch.com

UPDATE: Perhaps there is more elegant/better way to do this? When comboBox (line 34) is clicked the MouseListener (line 38) calls method "userNames()" (line 51), which sets up a connection to the database and returns an ArrayList. PopupMenuListener "srcListener" (line 8) calls the method "userNames()" and adds it to the comboBox (line 34). Problem: When Mouse Listener activates, combo box population ...

44. how to save added items in jcombobox    java-forums.org

Is it possible to save the recently added items in the combo box even if i close the program? My combo box is empty when i run my program, and I only populate it within the program, but whenever i close the program and try to run it again, the items i added in the combo box are gone.. how to ...

45. JComboBox won't add/remove elements    java-forums.org

class ComboBoxList extends JPanel { private String[] notes = {"Select a note", "Dentist", "Workout", "Meeting"}; private DefaultComboBoxModel model; private JComboBox cb; private String selection; private int indexNotes; public ComboBoxList() { Vector myNotes = new Vector(); for(int i = 0; i

46. Add element to Jcombobox    java-forums.org

JComboBox[1] myComboBox = new JComboBox[1](); String[10] myString = {"0","1","2","3","4","5","6","7","8","9"}; myComboBox[0] = (myString); //continue processing until you get a state changed... myComboBox[1] = "greetings"; //Now, to access the selections later, declare a variable private above the methods signature (or public,etc): private String allChoices; //.... public void itemStateChanged(ItemEvent e){ int selection; selection = e.getSelectedIndex(); if (selection == 0){ } //...continue }

47. Editable combo box that adds new entries    java-forums.org

Hi, The code is with many other components and many other methods apart from editable combo box. So i just picked up the code that are related to combo box alone. In this combo box, i could add new entries and it is updated in my database when i save the application. but i want the new entry to show up ...

48. Unable to add Items to a JComboBox when those items are read from a file    java-forums.org

Hey So I have this little problem: When i read from a file, i am unable to add the items read from that file to a JComboBox. I tried saving them to an array first, but it makes no difference. The weird thing is, using a debug statement the output tells me that the items are in the JComboBox, but when ...

49. Adding String to ArrayList from textfield and showing it on ComboBox    java-forums.org

How can i make so that when i add String to ArrayList from textfield, it adds it automaticlyto JComboBox as one of the options which to choose. Java Code: package Leiutis; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.util.ArrayList; import javax.swing.*; public class AddArray { static ArrayList al = new ArrayList(); static int count =-1; static String ...

50. Not trigger Action when adding to JComboBox    java-forums.org

I've searched and searched the internet and I cannot find a definitive answer to this question. Is the only way to add to a CB without firing the actionlistener to either disable it first or to use an If statement with the action.getValue()? I would think there would be a better way, maybe in which I can set the default for ...

51. how to add items to JComboBox using JRadioButton    forums.oracle.com

Hi I would like to add items to JComboBox according to my selection to radio buttons, like if I select "Dogs" RadioButton , an array of dogs name is added to the JComboBox.. and so on. I tried ActionListener and ItemListener which listen to the radio buttons. but it didn't work !! I guess that there is no way to do ...

52. Adding comboBox to JFrame    forums.oracle.com

53. Add a variable to jComboBox    forums.oracle.com

54. adding same JComboBox twice to JPanel    forums.oracle.com

55. Problem w/ adding and deleting items from a JComboBox    forums.oracle.com

I see a big mistake here is trying to do everything all in one class. You need to work in small classes, with small manageable chunks of code so you don't get lost in all the lines of code. You also need to think about your logic before committing code to page. You would do well to write out what your ...

56. Adding a unique identifier to a JComboBox    forums.oracle.com

Hi, I'm adding some table infomation but I need to save the Id of each entry in case I need to look for some other table information. So, I need to save the Primary Keys' information somewhere in the JComboBox but I don't know if it supports this. I haven't been able to find any information about this. I have the ...