private async void SaveRaceButton_Click(object sender, RoutedEventArgs e)
{
Race race = (Race)this.DefaultViewModel["Race"];
string raceId = race.Id.ToString();
string response;
if (this.pageMode == HelperClass.PageMode.Add)
{
response = await SampleDataSource.AddRace(race);
raceId = response;
}
else
{
response = await SampleDataSource.UpdateRace(race);
}
MessageDialog msgbox = new MessageDialog("Chequered flag! Race saved!");
await msgbox.ShowAsync();
Frame.Navigate(typeof(ViewRacePage), raceId);
}