How to create dynamically populated items in a listbox and use it as navigation?

How to create dynamically populated items in a listbox and use it as navigation?
Hello,
I am trying to create navigation inside a listbox menu. I load data from xml to populate a list. Each item in the list box should be a link or button. Then, I create a frame to load xaml pages in it. I tested to load pages employing button control, outside listbox with on click event and it worked well. However, I cannot make it work with list box items. I am hoping to get help from you. Any sample or ideas are highly appreciated.
Below is the code:
XAML:

XML:

Page 01  Page 02

C# to initiate a click o n listbox item and get the path to page:

private void SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)        { ListBoxItem lbi = ((sender as ListBox).SelectedItem as ListBoxItem); string itemName = lbi.Content.ToString(); if ( Nav_ListBox.SelectedItem.Equals("Page01" ) ) { ContentFrame.Source = new Uri("Pages/Page01.xaml", UriKind.RelativeOrAbsolute); } }

Thank you in advance.