SignalR Cannot invoke a non-delegate type - signalr

Question

I'm trying to learn SignalR by writing a really simple application... it basically sends "Hello" periodically (like the Stock Ticker, but a lot simpler).
Here's my hub:
public class StockTickerHub : Hub
{
public void Hello()
{
var s = StockTicker.stockTicker;
Clients.All.hello();
}
}
...and here's the code that is supposed to periodically send the messages:
public class StockTicker
{
public static StockTicker stockTicker = new StockTicker();
private Thread thread;
public StockTicker()
{
var stockTickerHub = GlobalHost.ConnectionManager.GetHubContext<StockTickerHub>();
this.thread = new Thread(() =>
{
while (true)
{
stockTickerHub.Clients.All().hello();
Thread.Sleep(1000);
}
}
);
this.thread.Start();
}
}
I'm getting a RuntimeBinderException at stockTickerHub.Clients.All().hello();. It says:
An unhandled exception of type 'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException' occurred in System.Core.dll
Additional information: Cannot invoke a non-delegate type
What am I doing wrong?
Client-side JavaScript is below, just in case you need to replicate this.
<script type="text/javascript">
$(function () {
var chat = $.connection.stockTickerHub;
chat.client.hello = function () {
$("#log").append("Hello");
}
$.connection.hub.start().done(function () {
chat.server.hello();
});
});
</script>

Answer 1

Simply change:
stockTickerHub.Clients.All().hello();
to:
stockTickerHub.Clients.All.hello();
The debugger should have already tell you this error. I tried your code after the update. It is working.
A remark on the code design:
I wouldn't start a new sending thread in the hello event, that would start one every time this method is invoked by any client. I don't think that's what you want to do. As a smoother example you could start the ticker in Startup class. (If you want a ticker per connection override OnConnected, get the client's connection id and give them separate tickers...)