title: How do I make the TreeViewItem(s) of an existing TreeView raise a Click event?
body: <p>How do I make the TreeViewItem(s) of an existing WPF TreeView raise a Click event?</p>
  
  <p>Currently, we are handling the SelectedItemChanged. In our case, we are displaying dialogs, so the user may click on the same selected TreeViewItem multiple times.</p>