private void AddLocation_Click(object sender, RoutedEventArgs e)
 {
     AddLocation window = new AddLocation();
     if (window.ShowDialog().Value)
     {
         this.TransportViewModel.Locations.Add(window.DataContext as LocationInfo);
     }
 }
 private void AddLocation_Click(object sender, RoutedEventArgs e)
 {
     AddLocation window = new AddLocation();
     if (window.ShowDialog().Value)
     {
         this.TransportViewModel.Locations.Add(window.DataContext as LocationInfo);
     }
 }