充分利用WebSocketCollection特定的客户端 [英] Getting a specific client from WebSocketCollection

问题描述

我写一个WebSocket的处理程序应该从一个客户端发送消息到另一个。

I am writing a websocket handler which should send a message from one client to another.

code

public class SocketHandler : WebSocketHandler
{
    private static WebSocketCollection clients = new WebSocketCollection();

    private int id;

    public override void OnOpen()
    {
        this.id = Convert.ToInt32(Cypher.Decrypt(this.WebSocketContext.QueryString["id"]));
        clients.Add(this);         
    }

    public override void OnMessage(string message)
    {
        //sending code here
    }
}

我知道如果我需要将消息发送给所有连接的客户我只是需要做的：

I know if I need to send a message to all connected clients I just need to do:

clients.Broadcast（信息）;

...但我需要的是发送给特定编号从查询字符串分配给它一个特定的客户端 - 比方说 1156 。

...but what I need is to send to a specific client with specific Id assigned to it from query string - let's say 1156.

我怎样才能获得客户端 ID = 1156 来自客户端的集合？

How can I get the client with id=1156 from the clients collection?

我试着使用lambda前pressions，但它不工作。它应该是简单...我已经在LINQ但在这个时候，我完全失去了做类似的事情了。

I tried using lambda expressions but it's not working. It should be simple... I have done similar things before in LINQ but at this time I am totally lost.

推荐答案

我终于设法通过客户为特定客户搜索和专门发送给他的信息。

I finally managed to search through clients for a specific client and send the message specifically to him.

clients.SingleOrDefault(r => ((SocketHandler)r).id == 1156).Send("Hey 1156!");

您需要做的仅仅类型转换，然后照常查询工作正常。

You just need to do typecast and then usual query works fine.

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