Communicating between two C# exe

Question

I have created a C# WPF project. I have two exe's running, both are created by me. One exe has a Window and another doesn't.

Now I want to communicate from the exe to the other . I want to send a small message from exe (no window) to the other.

I really confused about this IPC in Windows C#, can anyone suggest me which one will be good for this problem

@user2431170 http://tech.pro/tutorial/855/wcf-tutorial-basic-interprocess-communication — Suresh, Nov 21 '13 at 07:17
@JonathonReinhart. As I have already metioned, I was confused to implement IPC in C#. Sorry that I am not a Genius like you to find out everthing I need. And FYI, I have posted this question after googling for almost 1 hr — user2431170, Nov 21 '13 at 07:50
@sthotakura. Thank you so much. The tutorial which you shared is really useful. — user2431170, Nov 21 '13 at 07:50
@user2431170 He said "Use WCF named pipes". If you google that term, you'll find tons of examples, like [this one](http://stackoverflow.com/questions/7353670/wcf-named-pipe-minimal-example). — Jonathon Reinhart, Nov 21 '13 at 07:51
Hi @JonathonReinhart. I have used the named pipe, but getting error in the endpoint. Could you help me ? Server Code : http://pastebin.com/n16zCMbZ CLient : http://pastebin.com/n0N2CChW — user2431170, Nov 21 '13 at 09:36
@user2431170 If you have a question with a specific piece of code like you've linked to, *that* is the kind of questions we want! Post that as a new question, showing what you've tried, what you expected, and the error messages that you're getting. — Jonathon Reinhart, Nov 21 '13 at 22:31

score 2 · Accepted Answer · edited Mar 07 '14 at 02:07

2

You should not be rude in your comments.

Now try this:

On the client: create a client side proxy with the following few lines

// Create  the proxy:
EndpointAddress ep = new EndpointAddress("net.pipe://localhost/SomeAddress/PipeEndpoint/");
IMyinterface instance = ChannelFactory<IMyinterface>.CreateChannel(new NetNamedPipeBinding(), ep);

// now use it:
instance.SendMessage();

On the server side, run the server and register the object to do the work:

ServiceHost host = new ServiceHost(new MyClass(), new Uri("net.pipe://localhost/SomeAddress"));
host.AddServiceEndpoint(typeof(IMyinterface), new NetNamedPipeBinding(), "PipeEndpoint");
host.Open();

The MyClass code on the server side too:

    [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
public class MyClass : IMyinterface
{

    public void SendMessage()
    {
        // do something here
    }

}

And the interface should be in separate project referensed by both, client and server projects:

[ServiceContract]
interface IMyinterface
{
     [OperationContract]
    void SendMessage();
}

Remark: when I say "Client", I mean the one who sends the message. Server is the one who receives the message. I think in your architecture is the opposite, so I wanted to be clear with my terminology.

I hope it helps

edited Mar 07 '14 at 02:07

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answered Nov 21 '13 at 08:37

Rami Yampolsky

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Hi Rami, I have used the same example , which was given by @sthotakura. I guess this also looks the same. But I am getting EndPointNotFoundException. – user2431170 Nov 21 '13 at 08:51
This is the message I am getting , There was no endpoint listening at net.pipe://localhost/CommService/ that could accept the message. – user2431170 Nov 21 '13 at 08:54
(1) recheck the correctness of the addresses. (2) It may be a timing problem, maybe your client try to access the server before the server opened the pipe channel? – Rami Yampolsky Nov 21 '13 at 09:12
Please check the server code here http://pastebin.com/n16zCMbZ – user2431170 Nov 21 '13 at 09:33
And Client code http://pastebin.com/n0N2CChW – user2431170 Nov 21 '13 at 09:34
This code would not compile... – Rami Yampolsky Nov 21 '13 at 09:42
Rami, It is not placed in the same way like you see in paste bin. I just copied all the code and pasted for your reference. I am able to compile and run both exe. When I tried to send message from one exe to other at that time I am getting error as no endpoint listening – user2431170 Nov 21 '13 at 09:49
Hi Rami , Your code is working fine . I can get the response. But it takes more than 1 min to get the response :( – user2431170 Nov 21 '13 at 10:43
It should be match quicker. maybe the code in the function that you call runs long time? – Rami Yampolsky Nov 21 '13 at 11:12
Yes. It calls the interface implementation and it takes long time to come back – user2431170 Nov 22 '13 at 00:06
Does your function that you call from other executable does its job quickly if you called it directly in the same process, without pipes? – Rami Yampolsky Nov 22 '13 at 09:09

Communicating between two C# exe

1 Answers1