I'm having problems getting self-referencing data to display in my RadTreeView.  I'm using the Q1 2007 release in VS Team Suite SP1 on Vista 32bit.

I'm trying to bind the tree to a DataSet which holds the following Xml data:
<Toc>
  <Node>
    <Title>Main Title</Title>
    <Target>d03.xml</Target>
    <id>1</id>
    <parentId>-1</parentId>
  </Node>
  <Node>
    <Title>Child Title</Title>
    <Target>d0300000.xml</Target>
    <id>2</id>
    <parentId>1</parentId>
  </Node>
</Toc>

When using the Property Builder and selecting the DataSet as the DataSource, "Toc" as the DataMember, and Toc.Title as the DisplayMember then I get no items at all shown in the resulting WinForm.

When setting properties in code as below I get the title of the two nodes; however, no graphics or parent/child relationship are shown.

dataSet1 = new DataSet();
dataSet1.ReadXml("d03_toc.xml");
radTreeView1.DataSource = dataSet1;
radTreeView1.DataMember = "Toc";
radTreeView1.DisplayMember = "Toc.Title";
radTreeView1.ValueMember = "Toc.id";
radTreeView1.ParentIDMember = "Toc.parentId";

It's completely unclear in the help file if or how I'm supposed to use the Property Builder to create any nodes when using a bound data source.  Is this part of my problem?

I'd certainly appreciate a pointer as to where I've gone wrong.

1. A RibbonBar
2. A PageView for Navigating between subsections of the application (exactly like Outlook switches between mail and calender)
3. A SplitContainer to split the left side navigation from the actual content on the right