Auto scroll when a JTree's node expand

[Allan Valeriano]

Hi,

I have JSplitPane, where the left panel is a JScrollPane with a JTree
inside, and the right panel is a JTable.

This is supposed to be something like the windows explorer, where I
have a tree representing folders on the left and the children listed
on the right. That way, when I double click a node on the right, the
node representing it should expand on the tree and get selected.

This part is working fine, but when I expand a node which is too deep
in the tree, it gets hidden. I'd like to auto scroll the bar, so the
selected node would be visible.
Anybody knows how can I do that? I hope I didn't make it too confusing
to understand.

thanks in advance for any help.

 

[Hunter Gratzner]

This part is working fine, but when I expand a node which is too deep
in the tree, it gets hidden. I'd like to auto scroll the bar, so the
selected node would be visible.
Anybody knows how can I do that? I hope I didn't make it too confusing
to understand.

JTree has a method for this. Read the API documentation.

 

[joel augustine]

Here is the code

DefaultMutableTreeNode top=new DefaultMutableTreeNode("Table of contents");
JTree tree = new JTree(top);
tree.setScrollsOnExpand(true);
JScrollPane treeView = new JScrollPane(tree);
treeView.setBounds(as you wish);
yourcontainer.add(treeView);