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