Why does a WPF Popup close when its background area is clicked?

Question

I have a WPF Popup control that contains some editing controls (list boxes, text boxes, check boxes) laid out with quite a bit of whitespace.

Popu

Answer 1

you can set StayOpen=true,and set a timer,in the Popup's MouseLeave event timer.Start(),such as after 3 seconds,close this popup,in the MouseEnter event,timer.Stop(). It will works.