// If btnOpenMap gets clicked open new window with map.
        private void btnOpenMap_Click(object sender, RoutedEventArgs e)
        {
            var       tag     = ((Button)sender).Tag;
            Station   station = (Station)tag;
            MapWindow map     = new MapWindow(station.Coordinate.XCoordinate, station.Coordinate.YCoordinate);

            map.ShowDialog();
        }
        // If btnOpenMapNear gets clicked open new window with map.
        private void btnOpenMapNear_Click(object sender, RoutedEventArgs e)
        {
            MapWindow map = new MapWindow();

            map.ShowDialog();
        }