protected override void OnNavigatedTo(NavigationEventArgs e)
{
if(_services == null) _services = new Dictionary<BusStop, DepartureTimeService>();
var mainViewModel = new MainViewModel {PivotViewModels = new ObservableCollection<PivotViewModel>()};
using(var db = MadMetroDataContext.NewInstance())
{
foreach(var busStopRoute in db.BusStopRoutes.Where(bsr => bsr.IsTracking))
{
if(!_services.ContainsKey(busStopRoute.BusStop))
{
var service = new DepartureTimeService(busStopRoute.BusStop);
service.TimesDetermined += OnDepartureTimeRecieved;
_services.Add(busStopRoute.BusStop, service);
var pvm = new PivotViewModel
{
BusStop = busStopRoute.BusStop,
BusStopTimes = new ObservableCollection<BusStopTime>(),
RouteDirections = new ObservableCollection<RouteDirection>()
};
mainViewModel.PivotViewModels.Add(pvm);
}
//get the viewModel for this bus stop so we
//can add all tracked RouteDirections
var viewModel = mainViewModel.PivotViewModels.Single(pvm => pvm.BusStop.Equals(busStopRoute.BusStop));
var routeDirection = new RouteDirection
{
Direction = busStopRoute.Direction,
Route = busStopRoute.Route
};
viewModel.RouteDirections.Add(routeDirection);
}
}
DataContext = mainViewModel;
}
public void Initialize(IEnumerable<BusStopRoute> busStopRoutes)
{
PivotViewModels = new ObservableCollection<PivotViewModel>();
foreach (var busStopRoute in busStopRoutes)
{
//create the pivot view for this bus stop if it doesn't already exist
if (!_pivotViewModels.Any(pvm => pvm.BusStop.Equals(busStopRoute.BusStop)))
{
}
var viewModel =_pivotViewModels.Single(pvm => pvm.BusStop.Equals(busStopRoute.BusStop));
viewModel.RouteDirections.Add(new RouteDirection{Direction = busStopRoute.Direction, Route = busStopRoute.Route});
}
if(PivotViewModels.Count > 0) SelectedPivotViewModel = PivotViewModels[0];
NoRoutesTracked = PivotViewModels.Count == 0;
}
