public async Task StartAsync()
{
if (!_started)
{
// create the connection using the .NET SignalR client
_hubConnection = new HubConnectionBuilder()
.WithUrl(_hubUrl)
.Build();
Console.WriteLine("ChatClient: calling Start()");
// add handler for receiving messages
_hubConnection.On <Message>(MessageFunctions.RECEIVE, (message) =>
{
HandleReceiveMessage(message);
});
_hubConnection.On(MessageFunctions.USEREVENT, () =>
{
UserEvent?.Invoke(this, EventArgs.Empty);
});
// start the connection
await _hubConnection.StartAsync();
Console.WriteLine("ChatClient: Start returned");
_started = true;
// register user on hub to let other clients know they've joined
await _hubConnection.SendAsync(MessageFunctions.REGISTER, _username);
}
}
// Method to invoke event
public void OnUserEvent()
{
//if(UserEvent != null)
//{
UserEvent.Invoke();
//}
}
public void RaiseEvent(object sender, string eventType)
{
UserEvent?.Invoke(sender, eventType);
}
private void button1_Click(object sender, EventArgs e)
{
UserEvent?.Invoke(textBox1.Text.Trim(), textBox2.Text.Trim());
this.Close();
}
protected virtual void RaiseUserEvent(TokenEventArgs e)
{
UserEvent?.Invoke(this, e);
}
public void UserLeave(NetworkUser user)
{
roomUsers.Remove(user);
userLeaveEvent.Invoke(user);
}
public void UserJoin(NetworkUser user)
{
roomUsers.Add(user);
userJoinEvent.Invoke(user);
}