public static DoctorAddNewIngredientWindow GetInstance(Medicine medicineToAddNewIngredient) { if (instance == null) { instance = new DoctorAddNewIngredientWindow(medicineToAddNewIngredient); } return(instance); }
private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) { instance = null; }
private void addIngredientButton_Click(object sender, RoutedEventArgs e) => DoctorAddNewIngredientWindow.GetInstance(_medicineToPreview).ShowDialog();