Set this to the UI threads SynchronizationContext Any operation that may update the UI gets sent through the SyncContext if its null the operation is executed on the current thread i.e. for Universal App set this to ParticleCloud.SyncContext = System.Threading.SynchronizationContext.Current; in the App.xaml.cs inside the OnLaunch function

public static SynchronizationContext SyncContext { get; set; }

Public Shared Property SyncContext As SynchronizationContext
	Get
	Set

public:
static property SynchronizationContext^ SyncContext {
	SynchronizationContext^ get ();
	void set (SynchronizationContext^ value);
}

static member SyncContext : SynchronizationContext with get, set