Question

I am using this part of code in the hub (with interface IConnected) of signalr. The problem is when I call Group.Add in Connect method, a client really isn’t in the group and I can’t send him a message throw this group. When I call later some method from the client to register in a group, everything is ok. What I don’t understand, in both methods(in Connect() even in registerClientToGroup()) has the same Groups.Add method.

public System.Threading.Tasks.Task Connect()
{
  Groups.Add(this.Context.ConnectionId, "group");
  return null;
}

Some ideas? Thanks a lot.

Answer 1

I’m not sure if this is the direct cause of your problem, but I’m surprised you are not getting errors because you are returning a null value for the Task from Connect. You probably are getting errors, you’re just not debugging/catching them.

If you don’t have any other work to do in Connect that necessitates your own Task then simply return the Task from the call to Groups.Add like so:

public Task Connect()
{
    return Groups.Add(this.Context.ConnectionId, "group");
}