Question

I can also paraphrase the question and ask how I can get a TreeViewItem out of a Model object in TreeView.Items?

I follow this tutorial and instead of TreeViewItems in the TreeView.Items collection I have objects of that model class.

However, I need to focus certain TreeView elements based on some other event. If TreeView.Items contained TreeViewItems I’d easily found a needed one and used its Focus() method. But since I’m using binding now I don’t know how to do that.

Of course, I can populate a TreeView programmatically by adding TreeViewItems objects, however I tried to avoid it and follow a more WPF-way of doing things with binding.

Answer 1

TreeViewItem tvItem = (TreeViewItem)treeView
                          .ItemContainerGenerator
                          .ContainerFromItem(item);
tvItem.Focus();