How to get live data using socket.io to a windows forms .NET client application

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I'm using the following java script code to show real time data in my website

What I have tried:

<pre> const socket = io('https://mysocketio.com/', {
                timeout: 2000,
                forceNew: true,
                path: '/socket/',
                query: {
                    token: "AbcD"
                },
                transports: ['websocket'],
                reconnection: true
            });

            socket.on('connect', function () {
               alert('connected');
            });
          

            socket.on('change', function (liveData) {
                alert(liveData);

            });
            socket.on('disconnect', function () {
                alert('disconnect');
            });

The above code is working fine. Now my client wants to do the same in desktop application too. So please help me to show real time data in to desktop application using C# or VB.

Posted 4-Jun-20 21:45pm

Member 13147962

Updated 4-Jun-20 22:10pm

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2 solutions

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OriginalGriff · Answer 1 · 2020-06-04T21:52:00

Solution 1

We are more than willing to help those that are stuck: but that doesn't mean that we are here to do it all for you! We can't do all the work, you are either getting paid for this, or it's part of your grades and it wouldn't be at all fair for us to do it all for you.

So we need you to do the work, and we will help you when you get stuck. That doesn't mean we will give you a step by step solution you can hand in!
Start by explaining where you are at the moment, and what the next step in the process is. Then tell us what you have tried to get that next step working, and what happened when you did.

Posted 4-Jun-20 21:52pm

OriginalGriff

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Member 13147962 5-Jun-20 4:14am

Hi Thanks for you replay. I've already spend one day for this (I'm new to win forms). Below code is I'm trying...

string socketS = "wss://mysocketio.com/socket/v1/?token=AbcD&EIO=3&transport=websocket";

try
{

var cSocket = IO.Socket(socketS);
cSocket.Connect();

cSocket.On(Socket.EVENT_CONNECT, () =>
{
Console.WriteLine("success");
});

cSocket.On(Socket.EVENT_DISCONNECT, () =>
{

Console.WriteLine("Disconnected");
});
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}

but it returned "Error An item with the same key has already been added ". So please correct me If did anything worng. Thanks.

OriginalGriff 5-Jun-20 4:22am

That code didn't return that error message.

I'd strongly suggest you start using the debugger to look at what your code is doing while it's running.

Member 13147962 5-Jun-20 9:25am

But I always got the error "An item with the same key has already been added" (I'm used Quobject.SocketIoClientDotNet.Client library). Anyway I got solution from https://stackoverflow.com/questions/39112800/observing-incoming-websocket-messages-with-reactive-extensions?noredirect=1&lq=1. Thanks for your support.

Richard MacCutchan · Answer 2 · 2020-06-04T22:11:00

Solution 2

Socket Class (System.Net.Sockets) | Microsoft Docs[^]

Posted 4-Jun-20 22:11pm

Richard MacCutchan

How to get live data using socket.io to a windows forms .NET client application

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How to get live data using socket.io to a windows forms .NET client application

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