private void PhasorSelectionUserControl_Loaded(object sender, System.Windows.RoutedEventArgs e) { if (!DesignerProperties.GetIsInDesignMode(this)) { m_dataContext = new PhasorSelectionViewModel(16); m_dataContext.PropertyChanged += ViewModel_PropertyChanged; m_dataContext.PhasorTypeFilter = m_phasorTypeFilter; DataContext = m_dataContext; } }