🚀 go-pugleaf

All:

The following goes work for me:

// int nodeCount is defined elsewhere.

  public void addNode()
  {
    DefaultMutableTreeNode dmtn;
    node3.add(dmtn = new DefaultMutableTreeNode("New Node " + ++nodeCount,
true));

    int[] indexAry = new int[1];
    indexAry[0] = node3.getIndex(dmtn);

    DefaultMutableTreeNode[] nodeAry = new DefaultMutableTreeNode[1];
    nodeAry[0] = dmtn;

    DefaultTreeModel dtm = (DefaultTreeModel)myTree.getModel();

    dtm.nodesWereInserted(node3, indexAry);
  }


Tom



Torgeir Veimo wrote:

> Tom Ranz wrote:
> >
> > Hi,
> >
> > I have noticed when trying to add child nodes to an existing and
> > displayed root node multiple times that the new child nodes are added to
> > the root node but I cannot get them to display.
>
> You must inform the tree model that nodes were inserted. Use the
> fireTreeNodesInserted or something similar on either
> DefaultMutableTreeModel or DefaultTreeModel. You can get the model if
> you created the JTree with a node by using getModel() on the JTree
> instance I believe.
>
> --
> -Torgeir