Swing/AWT/SWT :: Populate JPanel Based On More Information About Selected JTree Node From A File?
Aug 27, 2014When you select a node in a JTree can you then populate a JPanel based on more information about that node from a file?
View Replies
ADVERTISEMENT
Display More Information When Node Is Clicked In Jtree?
Aug 27, 2014I'm new to java and I'm currently trying to make a program that uses a JTree that implements a properties file. I have the Keys set to the nodes but I want it so that when the node is clicked it will retrieve the keys value from the prop file.
I did have some code for this initially but I as it did not work at the time and was causing issues to my project I got rid of it. I have my code for the jtree,the listener and the prop file.
Tree
Java Code:
JPanel panel_1 = new JPanel();
panel_1.setBackground(Color.WHITE);
panel_1.setSize(new Dimension(22, 0));
scrollPane.setViewportView(panel_1);
Properties properties = new Properties();
[Code] ....
Java Code: add = Adds files changes in your working directory to your index. Example: git add .
rm = Removes files from your index and your working directory so they will not be tracked.
Example: git rm filename mh_sh_highlight_all('java');
Is there a way of doing this? Been trying for a while now but to no prevail. The image is what it currently looks like
Swing/AWT/SWT :: Manually Select A Node In JTree?
Oct 24, 2014I have problem with manually (through my java code) selecting items in a JTree. I did Google the problem and found solutions here :
[URL]
This code worked for me only partially. Once I tried selecting deeper nested nodes, I ran into problems. Since my production code is very cluttered I built an example and reproduced my exact problem in it.
DummyView.java
package de.fortis.tcws.client.controller;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
[code].....
The important method is 'manualSelect(String[])'.
It streps through the tree by comparing user objects and finds the target node. Then it calls 'navigateToNode()' which uses the solution discussed in the links above.
This method behaves incosistently:
If you call it with an empty array it will correctly select the root node. The righthand pane shows the text of the selected node. = correct
If you call it with target node 1 it will correctly select node 1. The righthand pane shows the text of the selected node. = correct
If you call it with target node 1.1 it will select node 1.1 but for some reason it is not displayed as marked (no background). The righthand pane shows the text of the selected node. = only partly correct
If you call it with target node A it will run into an exception. Debugging reveals that the selection occurs correclty at first. You can also observe the righthand pane showing that 'A' was selected. But afterwards another TreeselectionEvent is occuring that has a NewLeadSelectionPath of null. I do not know where this second SelectionEvent is triggered from.
This code is run with Java 1.6.0_39 which is also what I will have to use in production.
Create Instance Of Class Used To Populate DefaultListModel When JList Item Selected
Jan 28, 2015New to Java Swing. What I am trying to achieve here is to create an instance of the class used to populate the DefaultListModel when a JList item is selected. All examples I have seen show how to return the text displayed in the JList which really is of no practical use.
I have achieved what I want to achieve in that I am successfuly creating the selected object within my ListCellRenderer class.
For the purpose of testing I am using a call to the JOptionPane.showMessageDialog method to display the id of the selected object.
So, I launch the JFrame, the JList is populated, I select an item from the JList and the id value is displayed in the prompt. All this works fine except for one thing.
When I click OK on the JOptionPane.showMessageDialog prompt, the prompt disappears and reappears. The system seems to be in a loop. It is behaving as if the change or click event handler on the JList keeps firing.
This happens even without the creation of the object:
BookEntry be = (BookEntry)list.getModel().getElementAt(list.getSelectedIndex());
I have scoured the code and object properties to see if I can figure out where this behaviour is coming from without success.
All there is in the JFrame design view is a single JList with a variable name of "list". Everything else is in code as below:
Here is the .java code. Its not that complex
import java.awt.Color;
import java.awt.Component;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.ListCellRenderer;
import javax.swing.DefaultListModel;
public class NewJFrame3 extends javax.swing.JFrame {
[Code] .....
Swing/AWT/SWT :: Sorting In File Tree Node
May 12, 2014I have requirement of sorting the files in tree structure with name and timestamp of creation, i am new to swings...
Here we are using FileTreeModel.
Root Folder:
folder1;
file1
file2
.
.
Swing/AWT/SWT :: Select Different Blocks Of Code When File Selected In JFileChooser?
Nov 12, 2014I have a program where I have to open a file and then run a piece of code to do something with it. However since there are different files I want to run different pieces of code depending on the file. I have a JFileChooser setup and it works but I would like to have a something like an if else depending on the file extension.
View Replies View RelatedServlets :: Populate Text Fields Based On Dropdown
Nov 20, 2014I have list of employees in my database and their associated information like employeeId,supervisor and process. I have class named EmployeeDetails having same properties. I am fetching details of all users using below code:
<%EmployeeDetails employeeList;
employeeList=(List<EmployeeDetails>)assetmain2.getEmployeeList(loginName);%>
<table>
<tr>
<td>
Requested For <select name="requestedForName" id="requestedForNameID">
<option selected="selected">--Select--</option>
<%int i=0;
[Code] .....
In employeeList, we have list of objects having data of employees. I donot know how to get which object is selected in dropdown and based on that rest of the text fields are populated. Example:
Name ID Supervisor
-------------------------------------------------------
Pawan Kumar3033045Vimal Kumar
Vimal Kumar3040901Dinesh Hemrajani
If Pawan Kumar is selected from dropdown then '3033045' and 'Vimal Kumar' should get populated.
Enable Radio Button Based On Value Selected From Database
Dec 2, 2014Enable Radio Button Based On The Value Selected From Database ????
View Replies View RelatedSwing/AWT/SWT :: Custom Jtree Renderer
Nov 2, 2014I would like to ask about JTree custom renderer. What could be wrong with this. Here's the deal:
I have a Jtree which suppose to view the structure of given folder, so far so good its working. But my problem is that i dont want it to show the full path as name, only folder name and file name. I wrote a custom JTree renderer in hope that this will solve my problem but it didn't.
Here is my custom Jtree renderer:
private static class MyTreeCellRenderer extends DefaultTreeCellRenderer {
@Override
public Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus) {
super.getTreeCellRendererComponent(tree, value, sel, expanded, leaf, row, hasFocus);
if( value instanceof DefaultMutableTreeNode){
[Code] .....
and here is where I am trying to implement it:
tree.setCellRenderer( new MyTreeCellRenderer());
File Filter In JTree
Apr 4, 2014My goal is to display file that have extension *.java,I was wrote this swing in netbeans,
Java Code:
private static class FileSystemModel implements TreeModel {
private File root;
private Vector listeners = new Vector();
public FileSystemModel(File rootDirectory) {
root = rootDirectory;
[code]....
Swing/AWT/SWT :: Build Code To Call Class As JTree?
Sep 28, 2014I am trying to make a JTree. I have used this guide :[URL]
Now when I call my Class with
TreeMainMenu tree = new TreeMainMenu();
JScrollPane MainMenu = new JScrollPane(tree);
I get only the default JTree..
I need to understand how I should build my code to call the class as JTree.
This is my code:
public class TreeMainMenu extends JTree {
private DefaultMutableTreeNode top = new DefaultMutableTreeNode("TOP");
JTree tree;
public JTree TreeMainMenu() {
APNode();
tree = new JTree(top);
tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
return tree;
[code]....
Display Data Structure With JTree In A Swing Application
Aug 28, 2014I have a tree-based data structure that looks somewhat like this:image1.png..Every tree always has a height of no more then 3, and each of these classes has a very specific use, generalization is not possible between them.Now, I want to display my data structure with a JTree in a Swing application. A JTree needs a TreeModel and so I created a custom TreeModel for my classes, it looks like this:
public class CustomTreeModel implements TreeModel {
private Root root;
public Object getRoot() {
return root;
[code]....
But then I would introduce this interface to my Model classes just for the purpose of writing the View. So my data model has to be altered to make the View work, this sounds completely against MVC to me and also like something I dont really like.On the other hand, the CustomTreeModel would be much simpler, easier to understand, easier to maintain and just in general more pleasing to the eye.Should I change my Model to improve the View? Is instanceof okay to be used in View classes?
Swing/AWT/SWT :: JTree - Drag And Drop Inside One Tree - Java 1.6
Jul 16, 2008I am trying to drag and drop tree nodes within the same JTree. I have a code which uses Java 1.2 java.awt.dnd.I would like to use TransferHandler and newer implementation.I have found a code which works when JTree is drop target but there is no code where Jtree is drag source and drop target.
View Replies View RelatedBoolean Method - Adding Information To Mailing List Based On User Input
May 5, 2014This program contains a superclass and a subclass that will gather the following information from the user:
name, address, phone number, and customer number.
Everything works fine except that I have to create a boolean method in this program that is required to determine based on user input whether they want to be added to a mailing list.
I cannot get this method to work with main, each time it is called it will always return the value but main will constantly read the last statement (else, where it will read "not wanting to be added to the mailing list).
The only way I can get this part of the program to work is by adding an equals method in main that ignores the case, but I am required to write a boolean method so this is not allowed.
Superclass:
public class Person
{
private String name;
private String address;
private String phoneNum;
public Person(String pName, String add, String number)
{
name = pName;
address = add;
[Code] ...
Swing/AWT/SWT :: Add New Node Value To Array?
Jan 28, 2014I have an add button on my screen to add a new node to tree. So once we click add button a popup comes to provide the new node name and then we press add button and the new node gets added to the tree.So know i want that when ever we add a new node to the tree the value of the new node should get stored in an array at the same time.
View Replies View RelatedSwing/AWT/SWT :: GetSelectedItem Isn't Getting Selected Item
Oct 9, 2014I was wanting to select an item in a comboBox and display it in a text field but all it's doing at the minute is retrieving the first item in the comboBox and placing that in the txt field
String value = (String) comboBoxEnv.getSelectedItem().toString();
if(comboBoxEnv.getSelectedItem()!= null){
txtTo.setText(value);
Swing/AWT/SWT :: How To Populate All Items In JTable When Corresponding JTextfield Is Empty
Aug 3, 2014I am designing a advanced search option in a java project with sqlite in NetBeans. there are 5 different JTextfields and 5 columns, I want to populate JTable with corresponding matching criteria. If a JTextfield is empty then it should select all items of that column.
query i was using is:
String val1=txt_billing2.getText(); //five input fields
String val2=txt_station2.getText();
String val3=txt_invoice2.getText();
String val4=txt_amonth2.getText();
String val5=txt_umonth2.getText();
[code]....
but when i leave a JTextfield empty it shows no data in JTable. only method i know is to use if else conditions but that generates 5!= 120 conditions!!!
How To Fetch Values Inside Tag / Node Of XML File
Mar 25, 2015I need to fetch the values inside the tag/node of an XML file.
The xml.file looks like this,
<numeric_values>
<data cc="100" ln="58">2291</data>
<data cc="100" ln="59">2291</data>
<data cc="105" ln="58">2389</data>
<data cc="105" ln="59">2389</data>
<data cc="110" ln="59">1</data>
<data cc="110" ln="57">1</data>
[Code]...
I need the value of cc and ln.
For example the first line contains cc = 100 and i need to fetch 100 and ln = 58 and i need the value 58.
Swing/AWT/SWT :: Matching Strings To Selected Rows In JTable
Nov 10, 2014I have a JTable which shows pdf files. In Addition I can check if they have errors, if it so I can generate a "report" by clicking the pdf. But the report gives me errors from all of the pdfs in the table. How can I match the error messages to the pdf which I select?
Here is one of the checking methods:
public static void testAllPagesHaveSameRotation(PDFDocument pdf) throws PDFDocumentException {
if (SettingsGui.testAllPagesHaveSameRotation.isSelected()) {
if (pdf.getPages() == 0) {
rotationError = "";
} else {
rotationError = "";
[Code] ....
Populate Array From Text File Or Scanner
May 26, 2014I have a simple txt file, each line simply containing 1 word.I would like each work to represent an index of the array..im having some difficulty populating an array from either a txt file or a scanner.i seem to be able to fill the scanner so to speak with the contents of the text file but not the array. I don't know how to syntax it
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
import java.util.Arrays;
public class ReadFile
public static void main(String[] args) {
[code]....
Swing/AWT/SWT :: Remove Or Hide Selected JCheckBox From A List In GroupLayout?
Dec 9, 2014There are 8 JCheckboxes, which are already added to panel and aligned in group layout. From which, I have selected one JCheckbox. Then the resultant GUI should contain only remaining 7 JCheckboxes and selected one should temporarily removed or hide from GUI . Is it possible? If so, how?
View Replies View RelatedSwing/AWT/SWT :: Copy Selected Data From JTable Cell To Clipboard
Feb 18, 2014I have a jtable that I would like to copy from a cell that I select to clipboard. How could I do these.
View Replies View RelatedSwing/AWT/SWT :: Popup Menu Will Become Invisible Does Not Capture Selected Value / Item
Nov 1, 2014I have a combobox with this PopupMenuListener. All works fine, except that the popupMenuWillBecomeInvisible method does not capture the selection made and neither does it show the selection.
PopupMenuListener pmlMqMessagePurged = new PopupMenuListener() {
@SuppressWarnings("unchecked")
public void popupMenuWillBecomeVisible(PopupMenuEvent arg0) {
try {
JdbcSqlServerDataSource ds = new JdbcSqlServerDataSource(
DbConnectionURL.UToolDbHostName, 0,
[Code] .....
The popupMenuWillBecomeInvisible does fire but the System.out.println() returns 'nul'l as answer to the value i have selected from the combobox.
JSP :: Iterate And Populate Values Of TXT File Into Text Area
May 15, 2014How can I read a text file present in my local directory say (C://test.txt) , iterate and populate the values of test.txt into a text area of the JSP page?
Contents in the test.txt file:
username:test
password:test123
domain:test321
DBname:testDB
JavaFX 2.0 :: File Browser - Adding Node To FlowPane Or TilePane
Jul 13, 2014I trying to make a file browser but when i try to add item to a FlowPane through me an error at runtime, look at this code if i add label with imageView when there are more than x ítem the error appear.
package first.sample;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.image.ImageView;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;
[Code] .....
But if i add the label and the imageView alone the error didn't show. Ihave folder in my pc with more than 1200 file and the error always appear. Is there a way to make a flowpane or tilepane hold enough items?
Swing/AWT/SWT :: How To Code Button That Get Selected Element From JComboBox And Perform Operations
Aug 6, 2014i've spend an hour or two, pasting fragments from tutorials and nothing changed.
Well - i have GUI, that have JComboBox with two elements:
String[] fedoras = { "Fedora 19", "Fedora 20" };
JComboBox fedora_list = new JComboBox(fedoras);
fedora_list.setSelectedIndex(0);
fedora_list.setBounds(120,170, 170,25);
fedora_list.addActionListener(this);
this.add(fedora_list);
Below i have normal button (named Update) with "update" set as ActionCommand. This button after clicked should check which value from list is selected and perform different operations for that elements. But it's harder than i thought.
Code for update button:
public void actionPerformed(ActionEvent e){
String cmd = e.getActionCommand();
(...)
else if ("update".equals(cmd)){
String selectedFedora = (String) fedora_list.getSelectedItem();
if (selectedFedora.equals("Fedora 19")) {
[code]....
- after user clicked Update button, button should check which value is selected in JComboBox (fedora_list).
- if Fedora 19 is selected and button clicked, then action in Xterm
- if Fedora 20 is selected, this same action in Xterm is performed, but for Fedora Linux 20
The problem is - i don't know hot to code Update button to check which value from fedora_list (JComboBox) is selected and perform other actions for every element on List.