private void WardEdit(object sender, RoutedEventArgs e)
        {
            if (WardDG.SelectedItems.Count > 0)
            {
                UserControl_AddWard myWindow = new UserControl_AddWard((Ward)WardDG.SelectedItem, this);

                myWindow.ShowDialog();
            }
        }
        private void WardAdd(object sender, RoutedEventArgs e)
        {
            UserControl_AddWard myWindow = new UserControl_AddWard(this);

            myWindow.ShowDialog();
        }