I've read a few threads on this subject but couldn't find anything to do what I'm trying to do. I have a treeview that is bound to a hierarchical set of objects. Each of these objects represents an icon on a map. When the user clicks one of the icons on the map, I want to select the item in the tree view, focus on it, and scroll it into view. The map object has a list of the objects that are bound to the treeview. In the example, Thing is the type of object bound to the tree.

public void ScrollIntoView(Thing t)
{
  if (t != null)
  {
    t.IsSelected = true;
    t.IsExpanded = true;

    TreeViewItem container = (TreeViewItem)(masterTreeView
      .ItemContainerGenerator.ContainerFromItem(t));
    if (container != null)
    {
      container.Focus();
      LogicalTreeHelper.BringIntoView(container);
    }
  }
}

So far, no matter what I've tried, container is always null. Any ideas?

c# wpf treeview itemcontainergenerator
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