public MainViewModel()
{
Restaurants.CollectionChanged += async(s, e) =>
{
if (e.NewItems != null)
{
foreach (Restaurant restaurant in e.NewItems)
{
MappedLocations.Add(
new MappedLocation
{
Restaurant = restaurant,
Index = Restaurants.IndexOf(restaurant) + 1,
Position = new BasicGeoposition
{
Latitude = restaurant.Latitude,
Longitude = restaurant.Longitude
}
});
if (restaurant.Distance == 0)
{
await SetDistanceAsync(restaurant);
}
}
}
if (e.OldItems != null)
{
foreach (Restaurant restaurant in e.OldItems)
{
MappedLocations.Remove(MappedLocations.First(location => location.Restaurant == restaurant));
}
foreach (var location in MappedLocations)
{
location.Index = Restaurants.IndexOf(location.Restaurant) + 1;
}
}
};
}
