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    <p>The ItemContainerGenerator will start generating after the Expanded event, so you can use that to set the Cursor, and set it back once <a href="http://msdn.microsoft.com/en-us/library/system.windows.controls.itemcontainergenerator.statuschanged(VS.85).aspx" rel="noreferrer">ItemContainerGenerator.StatusChanged</a> fires to indicate that your children have been populated.</p> <p>Since <a href="http://msdn.microsoft.com/en-us/library/system.windows.controls.treeviewitem.expanded(VS.85).aspx" rel="noreferrer">TreeViewItem.Expanded</a> is a routed event, you can just subscribe at some parent level:</p> <pre><code>myTreeView.AddHandler(TreeViewItem.ExpandedEvent, new RoutedEventHandler(TreeViewItemExpanded)); </code></pre> <p>Where TreeViewItemExpanded is defined elsewhere, something like this:</p> <pre><code>private void TreeViewItemExpanded(object sender, RoutedEventArgs e) { // we will only go through with this if our children haven't been populated TreeViewItem sourceItem = e.OriginalSource as TreeViewItem; if ((sourceItem != null) &amp;&amp; (sourceItem.ItemContainerGenerator.Status != GeneratorStatus.ContainersGenerated)) { // create a handler that will check our children and reset the cursor when the ItemContainerGenerator has finished EventHandler itemsGenerated = null; DateTime before = DateTime.Now; itemsGenerated = delegate(object o, EventArgs args) { // if the children are done being generated... if ((o as ItemContainerGenerator).Status == GeneratorStatus.ContainersGenerated) { (o as ItemContainerGenerator).StatusChanged -= itemsGenerated; // we're done, so remove the handler sourceItem.Dispatcher.BeginInvoke(DispatcherPriority.DataBind, (ThreadStart)delegate // asynchronous reset of cursor { myWindow.Cursor = Cursors.Arrow; // reset cursor Debug.WriteLine("Expanded in " + (DateTime.Now - before)); }); } }; sourceItem.ItemContainerGenerator.StatusChanged += itemsGenerated; // add the handler myWindow.Cursor = Cursors.Wait; // wait cursor } e.Handled = true; } </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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