Get the Parent node of a Child in WPF C# TreeView

Question

I understand that programming in C# with WPF is different from traditional C# procedures so most of the online material do not state what I need.

I have a TreeView control in my WPF Window and I have parent nodes and child nodes in it. I would like to store them in a List of type Node (id, name, parent).

I got the name of the selected item/node using this:

private void TreeViewItem_OnItemSelected(object sender, RoutedEventArgs e)
{
    TreeViewItem item = treeView.SelectedItem as TreeViewItem;
    nameTxt.Text = item.Header.ToString();
}

And I tried getting the Parent of the child node immediately before it using this:

TreeViewItem item = treeView.SelectedItem as TreeViewItem;
nameTxt.Text = item.Parent.ToString();

However, this returns the Root Parent (A) instead of the child's parent (which is 2).

What changes should I make to get the child's immediate parent instead of the root parent? :)

EDIT: Here's the XAML

<TreeView Name="treeView" HorizontalAlignment="Left" Height="564" Margin="10,68,0,0" VerticalAlignment="Top" Width="363">
     <TreeViewItem TreeViewItem.Selected="TreeViewItem_OnItemSelected"  Header="A" IsExpanded="True" Height="554" FontSize="18">
                <TreeViewItem Header="1" />
                <TreeViewItem Header="2" />
     </TreeViewItem>
</TreeView>

Answer 1

Created a small example to demonstrate your problem

In MainWindow.xaml

 <TreeView Name="tree">
    <TreeView>
        <TreeViewItem Header="North America" Selected="TreeViewItem_OnItemSelected">
            <TreeViewItem Header="USA">
                <TreeViewItem Header="New York"/>
                <TreeViewItem Header="Las Vegas"/>
                <TreeViewItem Header="Washington"/>
            </TreeViewItem>
            <TreeViewItem Header="Canada">
                <TreeViewItem Header="Toronto"/>
                <TreeViewItem Header="Quebec"/>
                <TreeViewItem Header="Montreal"/>
            </TreeViewItem>
            <TreeViewItem Header="Mexico"></TreeViewItem>
        </TreeViewItem>
    </TreeView>
</TreeView>

in Code Behind i.e MainWindow.xaml.cs

 private void TreeViewItem_OnItemSelected(object sender, RoutedEventArgs e)
    {
        TreeViewItem item = e.OriginalSource as TreeViewItem;
        if (item != null)
        {
            ItemsControl parent = GetSelectedTreeViewItemParent(item);

            TreeViewItem treeitem = parent as TreeViewItem;
            string MyValue= treeitem .Header.ToString();//Gets you the immediate parent
        }
    }
    public ItemsControl GetSelectedTreeViewItemParent(TreeViewItem item)
    {
        DependencyObject parent = VisualTreeHelper.GetParent(item);
        while (!(parent is TreeViewItem || parent is TreeView))
        {
            parent = VisualTreeHelper.GetParent(parent);
        }

        return parent as ItemsControl;
    }

And its done.