How to dismiss all WPF menus, popups, etc. by DevExpress programmatically to get around WindowsFormsHost related issue?

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I made a prototype out of your issue and everything works (when I click inside Windows Form Host the outside WPF combox collapse and vice versa).

So we know the native controls works as expected, the problem might be because of the UI framework you are using.

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So I had to:

MainWindow.Instance.BarManager.CloseAllPopups();

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Did you try to loop through the controls and raise the lose focus event?

CodeHunter