Socket Exception

Paul Harsent

I am trying to connect to a tcp listener, after I hit the clint.Connect(server, port) it throughts a SocketException

public void Connect(String server, String message)
{
try
{
StreamWriter sw;
StreamReader sr;

            int port = 5000;
            TcpClient client = new TcpClient(server, port);

            client.Connect(server, port);


            sw = new StreamWriter(client.GetStream());

            sr = new StreamReader(client.GetStream());


            sw.WriteLine(message);
            sw.Flush();
            
            string rtnMsg = sr.ReadToEnd().Trim();

        }
        catch (ArgumentNullException e)
        {
            Console.WriteLine("ArgumentNullException: {0}", e);
        }
        catch (SocketException e)
        {
            Console.WriteLine("SocketException: {0}", e);
        }
        catch (IOException e)
        {

        }
        catch (NullReferenceException e)
        {

        }

        Console.WriteLine("\\n Press Enter to continue...");
        Console.Read();
    }

Any help would be really helpful.

Pete OHanlon

The reason this happens is because you've already attempted to establish a connection in your constructor. The exception you're getting will be indicating that the port's already in use.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Onyx

Paul Harsent

It is just a method which is call by a thread, the method is passed the server IP to connect to. It throws an exception even when connecting only to one IP

Pete OHanlon

Did you read what I said carefully? Basically, when you call new TcpClient(address, port) you are establishing a connection at that point. You can remove the Connect call as you've already established your connection. See this[^] for more details.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Onyx

Luc Pattyn

Paul Harsent wrote:

TcpClient client = new TcpClient(server, port);
client.Connect(server, port);

I'm with Pete here; you basically have provided the same information (server, port) twice; that would not make much sense, would it? The documentation[^] provides an example, it does not have a Connect() call. :)

Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum

Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

realJSOP

Just let it go Pete... :)

".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

Pete OHanlon

I can't. I've got CDO.

I'm not a stalker, I just know things. Oh by the way, you're out of milk.

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Onyx

ankitjoshi24

I think you link should help him out. I went thru it and msdn is always helpful