Question is like this, make add buddy module, encountered a problem, is at the time of the login, the server will pass ID binding the Socket:

 
//the current online client dictionary, and ID binding 
Dictionary DicOnlineClients; 

,
Binding:

 
//to the current online client list add the client 
DicOnlineClients. Add (playerID, packet. _peer); 

Then send a friend request with this ID through this ID to bind Socket, if the client has no offline

 
//get the ID of the Socket 
The Socket Socket; 
If (DicOnlineClients. TryGetValue (FriendID, out socket)) 
{
$_server. Send (SendStream, socket); 
} 

But The problem is, when The Send, an error of The operation is not allowed on non - connected sockets.
But my client socket is obviously online
Please help solve the great god, or any other method, is used to specify the client sends data, here I use is by the player ID identification