rkusa

public static class GeoPositionWatcherExtensions
{
	public static IObservable<IEvent<GeoPositionStatusChangedEventArgs>> GetStatusChangedEventObservable<T>(this IGeoPositionWatcher<T> watcher)
	{
		return Observable.FromEvent<GeoPositionStatusChangedEventArgs>(ev => watcher.StatusChanged += ev, ev => watcher.StatusChanged -= ev);
	}

	public static IObservable<IEvent<GeoPositionChangedEventArgs<T>>> GetPositionChangedEventObservable<T>(this IGeoPositionWatcher<T> watcher)
	{
		return Observable.FromEvent<GeoPositionChangedEventArgs<T>>(ev => watcher.PositionChanged += ev, ev => watcher.PositionChanged -= ev);

rkusa

GeoCoordinateWatcher watcher = new GeoCoordinateWatcher();

rkusa

var statusChanged = from sc in watcher.GetStatusChangedEventObservable()
                    select sc.EventArgs;

statusChanged.Subscribe(item => Deployment.Current.Dispatcher.BeginInvoke(() => {
    // update your status textblock
    TextBlock.Text = Enum.GetName(typeof(GeoPositionStatus), item.Status);

    if (item.Status == GeoPositionStatus.Ready)
    {
        // f.e. hide your loading bar

rkusa

var statusChangedToReady = from sc in statusChanged
                           where sc.Status == GeoPositionStatus.Ready
                           select sc;

var positionChanged = from _ in statusChangedToReady
                      from pc in watcher.GetPositionChangedEventObservable()
                      where !pc.EventArgs.Position.Location.IsUnknown
                      select pc.EventArgs.Position;

rkusa

positionChanged.Skip(1).Zip(positionChanged, (lhs, rhs) => new
{
    Position1 = rhs,
    Position2 = lhs,
    Distance = lhs.Location.GetDistanceTo(rhs.Location)
}).Subscribe(item => Deployment.Current.Dispatcher.BeginInvoke(() =>
{
    // handle position ... f.e. add to a map's location collection
}));

rkusa

public interface IDependencyResolver
{
	object GetService(Type serviceType);
	IEnumerable<object> GetServices(Type serviceType);
}

rkusa

public class NinjectDependencyResolver : IDependencyResolver
{
	private IKernel _kernel;

	public NinjectDependencyResolver(IKernel kernel)
	{
		_kernel = kernel;
	}		

	public object GetService(Type serviceType)

rkusa

protected void Application_Start()
{
	IKernel kernel = new StandardKernel(new YourNinjectModule());
	DependencyResolver.SetResolver(new NinjectDependencyResolver(kernel));

	// register global filters, routes, ...
}

rkusa

yourListBox.Opacity = 0;

rkusa

for (int i = 0; i < yourListBox.Items.Count; i++)
{
	ListBoxItem item = (ListBoxItem)yourListBox.ItemContainerGenerator.ContainerFromIndex(i);
	if (item != null)
	{
		VisualStateManager.GoToState(item, "BeforeLoaded", false);
	}
}

yourListBox.Opacity = 1.0;