WPF menu item that doesn't close when clicked

Question

Is it possible to make a WPF menu item that, when clicked, does not close the dropdown menu?

Imagine a Preferences menu, with several checkbox-style preference settings as menu items. I want the ability to toggle several of them before closing the menu.

CLARIFICATION: This is only for some menu items, in some menus. File > Open should still close the menu, just like the user expects. Even the menu that has "non-closing" items will likely have "closing" items as well. I'm looking for per-item granularity.

Answer 1

MenuItem has a Property called StaysOpenOnClick which seems to be what you're looking for

So, to stop MenuItem from closing Menu/ContextMenu on click

<MenuItem Header="MenuItem That Doesn't Close On Click"
          StaysOpenOnClick="True"
          .../>

Answer 2

Would the Popup visual be of any use here? You can show it at any position above your window. IIRC you must tell the popup to close yourself, so you can define when the popup is closed.

Using proper layout you can make it look like a menu or dropdown thing.