Technically you should hook up to all notifications (using On<T>
) before you Start
listening. As far as your async work I'm not quite sure what you were trying to do, but for some reason your chaining the notification to your UI in On<T>
to the backgroundTask
variable which is the Task that was returned to you by the call to Start
. There's no reason for that to be involved there.
So this is probably what you want:
private void WireUpTransport()
{
// connect up to the signalR server
var connection = new HubConnection("http://localhost:32957/");
var messageHub = connection.CreateProxy("message");
var uiTaskScheduler = TaskScheduler.FromCurrentSynchronizationContext();
// subscribe to the servers Broadcast method
messageHub.On<Domain.Message>("Broadcast", message =>
{
// do our work on the UI thread
Task.Factory.StartNew(
() =>
{
popupNotifier.TitleText = message.Title + ", Priority: " + message.Priority.ToString();
popupNotifier.ContentText = message.Body;
popupNotifier.Popup();
},
CancellationToken.None,
TaskCreationOptions.None,
uiTaskScheduler);
});
connection.Start().ContinueWith(task =>
{
if (task.IsFaulted)
{
Console.WriteLine("There was an error opening the connection: {0}", task.Exception.GetBaseException());
}
else
{
Console.WriteLine("The connection was opened successfully");
}
});
}