void wc_ws_selectModelsCompleted(object sender, ws_selectModelsCompletedEventArgs e)
        {
            if (e.Result != null)
            {
                collection = new PagedCollectionView(e.Result);

                dg_Models.ItemsSource = collection;
            }
            else
            {
                cwnd_ShitHappens w = new cwnd_ShitHappens(ErrorResources.err_UPDATE, e.OpStatus.ToString());
                w.Show();
            }
        }
        void wc_ws_selectModelsCompleted(object sender, ws_selectModelsCompletedEventArgs e)
        {
            if (e.Result != null)
            {
                collection = new PagedCollectionView(e.Result);

                dg_Models.ItemsSource = collection;
            }
            else
            {
                cwnd_ShitHappens w = new cwnd_ShitHappens(ErrorResources.err_UPDATE, e.OpStatus.ToString());
                w.Show();
            }
        }