Why a WPF Popup control causes blocked content to not refresh

Source: WPF Popup control causes blocked content to not flush

why a WPF Popup control causes blocked content to not refresh

Zhou Banhui

Today when writing a WPF control with the popup control, it is very depressing: when the popup is closed, the original part of the interface is blocked by the popup is not refreshed, to manually refresh (such as the maximum minimum window), even the online legend of this method is not

    public static class Uihelper    {        private delegate void Noargdelegate ();        public static void Refresh (this UIElement obj)        {            obj. Dispatcher.invoke (Dispatcherpriority.render, (Noargdelegate) delegate {});        }    }

　　

This property is caused by allowstransparency , set it to true.

Why a WPF Popup control causes blocked content to not refresh