public void EditExecute()
 {
     try
     {
         if (Doctor != null)
         {
             EditDoctorView form = new EditDoctorView(Doctor);
             form.ShowDialog();
             DoctorList = doctors.ViewAllDoctors();
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.ToString());
     }
 }