1. Java Swing JTree Expansion stackoverflow.comThis method works as expected - it creates a JTree with a root node and two child container nodes (each with a respective leaf node): |
2. overriding JTree double-click to prevent node expansion? stackoverflow.comIt looks like there are 2 default mechanisms to expand a folder node in a JTree. One is to click on the expanded/collapsed icon next to a node. The other way ... |
3. Jtree node expansion without selection stackoverflow.comIs it possible to expand/collapse a node in a JTree without having it selected? (not highlighted) Thanks a lot |
4. Jtree expansion and selection problem stackoverflow.comI have two JTrees instances (leftTree and rightTree). User can select some nodes from left tree and add the same to right tree. I have the below code in add button ... |
5. JTree expansion/collapse callback coderanch.comI have a need in an application to allow an end user two ways to expand a collapsed node that exists in a tree view (JTree). For example, one way could be to simply click within the + square, and the other could be to simply double click on the node name. I also need to know which mechanism of the ... |
6. Jtree Expansion coderanch.com |
7. JTree expansion coderanch.comMy tree is coming collapsed when i run my application, i have tried using functions like expandRow(int), setExpandedState(Treepath, boolean), but it doesn't work. Also if i use setExpandedState(Treepath, boolean) function, then in collapsed state Treepath argument will be null, so there is no point in using it. please help me!! thanks in advance. |
8. JTree expansion coderanch.com |
9. Tree expansion null pointer coderanch.com |
10. JTree expansion coderanch.com |
11. JTree expansion & collapse programatically coderanch.comHi there, I am trying to do JTree expand & collapse one level at a time whenever user presses Expand & collapse button. few questins ? there are so many implementations if found for above way using getRowcount, getRootToPaht(rootNode) and expand recursively etc while expand is working , collapse wont work if both are implemented using same logic Also, JTree.getRowCount() API ... |
12. Loading a Tree (JTree Expansion) coderanch.com |
13. JTree Expansion coderanch.comFor a JTree use a DefaultTreeModel like this import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.tree.*; public class TreeLoading implements ActionListener { JTree tree; public void actionPerformed(ActionEvent e) { DefaultTreeModel model = (DefaultTreeModel)tree.getModel(); DefaultMutableTreeNode root = (DefaultMutableTreeNode)model.getRoot(); int nextRow = model.getChildCount(root); int[] indices = new int[10]; for(int j = nextRow, k = 0; j < nextRow+10; j++) { DefaultMutableTreeNode node = ... |
14. How to load a directory in JTree with Children(On expansion) java-forums.orgHi, How can I load a Jtree directory with children on expanding the node of that directory. I have developed the following SSCCE. Please explain in its context. My specific question is, when you execute the code given here, you can see the file bb.1 inside the directory bb. bb.1 is a dummy which I used while creating the Jtree. When ... |
15. JTree Programmatic Node Expansion and Selection Probelm java-forums.orgJava Code: import java.awt.*; import java.awt.event.*; import java.util.Enumeration; import javax.swing.*; import javax.swing.tree.*; public class NodeExpansion implements ActionListener { JTree tree = new JTree(); public void actionPerformed(ActionEvent e) { String s = e.getActionCommand(); setExpandedState(s); } private void setExpandedState(String id) { DefaultMutableTreeNode root = (DefaultMutableTreeNode)tree.getModel().getRoot(); Enumeration e = root.breadthFirstEnumeration(); while(e.hasMoreElements()) { DefaultMutableTreeNode node = (DefaultMutableTreeNode)e.nextElement(); if(node.getUserObject().equals(id)) { TreePath path = new TreePath(node.getPath()); if(node.isLeaf()) ... |