I have a window with a Ribbon with several Split and Popup buttons running in an Excel instance. The popups all have StayOpenOnClick set to true, and all works as expected when i start the window with w.ShowDialog but popups do not stay open when w.Show is used.
As a "brute force" workaround and I can "toggle" the IsPopupOpen property, but that's not ideal at all.
What to do?
Jurgen