private void btnSubmitLocation_Click(object sender, RoutedEventArgs e)
 {
     if (cmbLocations.SelectedIndex == -1)
     {
         MessageBoxResult popup = MessageBox.Show(this, "Please select your current location.", "Message Error", MessageBoxButton.OK, MessageBoxImage.Error);
     }
     else
     {
         Location selectedLocation = new Location();
         selectedLocation = locationData.Find(cmbLocations.SelectedIndex);
         var mainWindow = new MainWindow(selectedLocation);
         mainWindow.Show();
         this.Close();
     }
 }