Solved

JTree question

Posted on 2001-08-26
3
703 Views
Last Modified: 2008-02-26
I have JTree which a fill with nodes at the first time.
After that a call removeAllChildren() method for some node and I am adding a brand new set of nodes as childrens for this node. Why the JTree doesn't changes? (There are only interrupted lines to previous childs which are still visible)!
0
Comment
Question by:msterjev
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 92

Expert Comment

by:objects
ID: 6427145
Sounds like your making calls on the tree node (as opposed to the model).
The tree node do not support firing TreeModelEvent's.
If you change your nodes you must also ensure that the matching events are fired by your tree model.
0
 
LVL 3

Author Comment

by:msterjev
ID: 6427539
The events are minor problem. Give me example how to dinamically change structure of one node( remove all its childrens and add new ones)!
0
 
LVL 92

Accepted Solution

by:
objects earned 20 total points
ID: 6427563
> The events are minor problem

No, events are the problem.
The Jtree updates itself according to events recieved from its tree model.

> Give me example how to ...

If you're using a DefaultTreeModel then just call treemodel.reload(node) after you've finished modifying the nodes children.



0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

INTRODUCTION Working with files is a moderately common task in Java.  For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.   However, when your application has vi…
In this post we will learn different types of Android Layout and some basics of an Android App.
Viewers will learn about basic arrays, how to declare them, and how to use them. Introduction and definition: Declare an array and cover the syntax of declaring them: Initialize every index in the created array: Example/Features of a basic arr…
The viewer will learn how to implement Singleton Design Pattern in Java.

690 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question