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Editorial Team
Asked: May 13, 20262026-05-13T09:40:07+00:00 2026-05-13T09:40:07+00:00

How can I refer to active Window of WPF application in C#, using something

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How can I refer to active Window of WPF application in C#, using something like ActiveForm property in WinForms?

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  1. Editorial Team
    Editorial Team
    2026-05-13T09:40:07+00:00Added an answer on May 13, 2026 at 9:40 am

    One possible way would be to scan the list of open windows in the application and check which one of them has IsActive = true:

    Application.Current.Windows.OfType<Window>().SingleOrDefault(x => x.IsActive);
    

    Not sure if there may be more than one active window if, for example, there’s a modal dialog showing, in which case, the owner of the dialog and the dialog itself might be active.

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