Hello devz, It happens sometimes with WPF that a popup or a MessageBox is hidden and can block the¬†whole application. To avoid this, just do the following: var msgBoxResult = MessageBox.Show(Application.Current.MainWindow, “Are you sure?”, “Delete item”, MessageBoxButton.YesNo, MessageBoxImage.Question); The Application.Current.MainWindow is the solution… But please pay attention that this parameter can be different! Indeed it’s […]