How to Collapse and Expand in JTree

Asked Jan 31 '15 at 04:51

Active Jan 31 '15 at 04:51

Viewed 239 times

root
  A         //sub node
    A1     //sub node
      A11     // leaf node
    A2     // sub node
  B
    B1
    B2
  C

is there way to collapse/expand the sub nodes in dynamically. i tried this way

 tree.collapsePath(PreselectedPath);
 tree.expandPath(currentSelectedPath); 
 or 
 tree.expandRow(currentIndex);
 tree.collapseRow(preIndex);

it will works on first level node only apart from that it wont work. so is there any way to collapse/expand accordingly..?

asked Jan 31 '15 at 04:51

Karthick

1

Walk through all the nodes and collapse each one, be warned, this can be time consuming – MadProgrammer Jan 31 '15 at 05:04
Thanks for your replay. i found solution in this blog : http://orinanobworld.blogspot.in/2013/03/auto-collapsing-tree-in-java.html – Karthick Jan 31 '15 at 07:45
Refer : Auto Collapse/Expand for Tree http://orinanobworld.blogspot.in/2013/03/auto-collapsing-tree-in-java.html – Karthick Jan 31 '15 at 07:47
Just beware, we were trying things like this about found when you had quite a few nodes (hundreds), this process took quite some time (minutes) – MadProgrammer Jan 31 '15 at 08:08
Possible [duplicate](http://stackoverflow.com/q/8210630/230513). – trashgod Jan 31 '15 at 13:50

0 Answers0