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C# Method in hosting application, turns into class in client application

I've been trying to create an application that can receive information from other running applications through WCF.
I've setup a void method in a separate class, created the interface, and hosted the service.
In my Host application I have the following method.
public Class ReceivingMethods : IReceivingMethods
{
Public void HelloWorld(string text)
{
MessageBox.Show(text);
}
}
and
[ServiceContract]
interface iReceivingMethods
{
[OperationContract]
void HelloWorld(string text);
}
In the client, I would like to do this:
HostService client = new HostService();
client.HelloWorld("Hello World");
client.close();
But it doesn't work and instead I have to do this.
HostService client = new HostService();
HelloWorld hi = new HelloWorld();
hi.text = "Hello World";
client.HelloWorld(hi);
client.close();
I've gotten it to work as the former previously in an Application/ASP combination, but not on this application and I cannot find any difference in the setup between the two applications.
Can anybody tell me what is required from the WCF setup to get it to work as the former?

HostService client = new HostService();
You haven't mention what endpoint or which class object to use.Typically the servicehost class must create the object of particular end point,something like below one.
using(System.ServiceModel.ServiceHost host =
new System.ServiceModel.ServiceHost(typeof(ReceivingMethodsnamespace.ReceivingMethods )))
{
host.Open();
Console.WriteLine("Host started # " + DateTime.Now.ToString());
Console.ReadLine();
}
Generally the hostservice must create an object of the class which is implementing servicecontract interface(servicename of AddressBindingContract file)

Turns out I found the issue somewhere else.
I configured the client service reference to "always generate message contracts"
Unchecking this and updating the service reference solved the issue.
I found the solution here.
https://social.msdn.microsoft.com/Forums/en-US/b9655eeb-cdbb-4703-87d8-00deac340173/add-service-reference-creates-message-contracts-requestresponse-objects-with-always-generate?forum=wcf

WCF+ duplex + Windows Form Application (ButtonClick) Trouble

I have WCF classes and now project to do. My teacher gave as to write app with streaming and duplex (I know that is impossible, but I found backdoor from this situation - I'm sending pics under 60KB).
My code worked well so far as I start wrote my GUI in Windows Form Application.
When I'm testing it via console - everything work well. But, when I want to use buttons in my GUI i have this exception:
An unhandled exception of type 'System.TimeoutException' occurred in
mscorlib.dll Additional information: This request operation sent to
net.tcp://localhost:7756/Przesylanie did not receive a reply within
the configured timeout (00:00:59.9740007). The time allotted to this
operation may have been a portion of a longer timeout. This may be
because the service is still processing the operation or because the
service was unable to send a reply message. Please consider
increasing the operation timeout (by casting the channel/proxy to
IContextChannel and setting the OperationTimeout property) and ensure
that the service is able to connect to the client.
Here bunch of code:
Service + IService (due to limitation of Stack I put it to one file):
public void WyslijstrumienNaSerwer()
{
IPrzesylanieCallback callback = OperationContext.Current.GetCallbackChannel<IPrzesylanieCallback>();
string sciezka = #"E:\5 semestr\Fras\Se płotek\Lab6\WcfServiceContractZadanie2\Host\bin\Pliki\" + "plik_odebrany.jpg";
string filePath = Path.Combine(System.Environment.SystemDirectory, sciezka);
Console.WriteLine("start");
callback.WyslijStrumien(filePath);
Console.WriteLine(filePath);
Console.WriteLine("meta");
}
namespace WcfServiceContractZadanie2
{
[ServiceContract(SessionMode = SessionMode.Required, CallbackContract = typeof(IPrzesylanieCallback))]
public interface IPrzesylanie
{
[OperationContract]
void WyslijstrumienNaSerwer();
}
[ServiceContract]
public interface IPrzesylanieCallback
{
[OperationContract(IsOneWay = true)]
void WyslijStrumien(string filePath);
}
}
Client + callback + form + References.cs:
namespace Aplikacja
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
PrzesylanieClient klient = new PrzesylanieClient(new InstanceContext(new PrzesylanieCallback()), "NetTcpBinding_IPrzesylanie");
klient.WyslijstrumienNaSerwer();
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
public class PrzesylanieCallback : Referencja1.IPrzesylanieCallback
{
public void WyslijStrumien(string filePath)
{
Form1 o1 = new Form1();
// Pobieranie obrazka od klienta
string sciezka = #"E:\5 semestr\Fras\Se płotek\Lab6\WcfServiceContractZadanie2\Aplikacja\bin\Pliki\" + o1.wybrany();
string filePathZrodla = Path.Combine(System.Environment.SystemDirectory, sciezka);
//Otwieranie obrazka
Stream strumien = null;
try
{
FileStream imageFile = File.OpenRead(filePathZrodla);
strumien = (Stream)imageFile;
}
catch(IOException ioe)
{
Console.WriteLine("Wyjatek otwierania pliku: {0}", ioe.ToString());
Console.ReadKey();
throw ioe;
}
// Zapisywanie obrazka
o1.SaveFile(strumien, filePath);
}
}
}
private void btnPrzeslijPlikNaSerwer_Click(object sender, EventArgs e)
{
PrzesylanieClient klient = new PrzesylanieClient(new InstanceContext(new PrzesylanieCallback()), "NetTcpBinding_IPrzesylanie");
klient.WyslijstrumienNaSerwer();
}
public void WyslijstrumienNaSerwer() {
base.Channel.WyslijstrumienNaSerwer();
}
I wrote methods SaveFile which works correctly.
As you see, I'm testing my code in the begining of Main function in Client and that works well.
But when I'm using the same code in Forms it does not work. Compiler is returnig me to References.cs and gives me exception I mentioned earlier.
Waiting for any respone!

My answer does not solve your exception issue; however, it might prevent you from getting a very bad grade. Streaming AND duplex are both supported in WCF.
Streaming:
https://msdn.microsoft.com/en-us/library/ms733742(v=vs.110).aspx
Duplex:
https://msdn.microsoft.com/en-us/library/ms731064(v=vs.110).aspx

Calling Webservice inside webservice WCF

I'm working on a SOAP project which contains:
C# client
C# server (WCF)
J2EE server (with webservice)
On my C# Server, I have my service and I'm adding the J2EE WSDL to this project to calling a J2EE method.
But I'm still having an issue. Which does not append when I'm calling the WSDL from an console app wjich contains a MAIN.
Any clue if there is a restriction or anything else?
the service:
public class ClientRequest : IClientRequest
{
public STG m_service(STG msg)
{
var remoteJavaServer = new ServerServicesClient();
remoteJavaServer.Open();
Console.WriteLine("Result value for 2 square -> {0}", remoteJavaServer.test(2));
return msg;
}
public int m_square(int i)
{
Console.WriteLine("value input = "+i);
return i*i;
}
}
the console app :
class Program
{
static void Main(string[] args)
{
var client = new ServerServicesClient();
client.Open();
Console.WriteLine("2 -> {0}", client.test(2));
}
}

Turns out, only my 'service' library project was configure with the endpoint to target the WSDL. So, I've add the endpoint to the host console app and now it is working.
Thanks anyway.
Closed.

How do I use command line arguments in my C# console app?

I am writing a url shortener app and I would like to also create a console app with C# to push the URLs to a WCF service which I have also created.
WCF app will shorten the url on this URI;
http://example.com/shorten/http://exaple.com
so what I want is just that.
My console exe file will be sitting inside c:\dev folder and on Windows command line, I would like to do this;
c:\dev>myapp -throw http://example.com
with this method I would like to talk to that service. there is no problem on talking part. But the problem is how can I supply this -throw thing on the command line and get a response and put that response on the command line and supply a method to copy that to the clipboard. Am I asking too much here? :S I don't know.
Could you direct me somewhere that I can find information on that or could u please give me an example code of this?
Thanks.
EDIT :
I have tried the following code;
class Program {
static void Main(string[] args) {
if (args[0] == "-throw") {
System.Windows.Forms.Clipboard.SetDataObject(args[1]);
Console.WriteLine(args[1] + " has been added to clipboard !");
Console.ReadLine();
}
}
}
and I received the following error;
C:\Apps\ArgsTry\ArgsTry\bin\Debug>ArgsTry
-throw man
Unhandled Exception:
System.Threading.ThreadStateException:
Current thread must be set to single
thread apartment (STA) mode before OLE
calls can be made. Ensur e that your
Main function has STAThreadAttribute
marked on it. at
System.Windows.Forms.Clipboard.SetDataObject(Object
data, Boolean copy, In t32 retryTimes,
Int32 retryDelay) at
System.Windows.Forms.Clipboard.SetDataObject(Object
data) at
ArgsTry.Program.Main(String[] args) in
c:\apps\ArgsTry\ArgsTry\Program.cs:
line 14
C:\Apps\ArgsTry\ArgsTry\bin\Debug>

Passing arguments to a console application is easy:
using System;
public class CommandLine
{
public static void Main(string[] args)
{
for(int i = 0; i < args.Length; i++)
{
if( args[i] == "-throw" )
{
// call http client args[i+1] for URL
}
}
}
}
As for the clipboard, see:
http://msdn.microsoft.com/en-us/library/system.windows.forms.clipboard.aspx

See the args below, you can use it to read all the values passed when you run your exe file.
static void Main(string[] args) {

Pass a remote object to a remote method in C#

I'm attempting to pass a remote object as a parameter to a remote method, but I get a security exception when the remote object attempts to run a method on the received remote object.
This is a sample remote object:
public class SharpRemotingDLL : MarshalByRefObject
{
public String getRemoteMessage(SharpRemotingDLL server)
{
// the exception is raised here
return server.getMessage();
}
public String getMessage()
{
return "Hello World!";
}
}
This is the server starter (two instances of this are running, one on 127.0.0.10025, the other on 127.0.0.10026):
public static int Main(string[] args)
{
TcpServerChannel channel;
channel = new TcpServerChannel(10025);
ChannelServices.RegisterChannel(channel, false);
RemotingConfiguration.RegisterWellKnownServiceType(
typeof(SharpRemotingDLL),
"SharpRemotingDLL",
WellKnownObjectMode.Singleton);
Console.ReadLine();
return 0;
}
And this is the client:
static void Main(string[] args)
{
SharpRemotingDLL server0 = (SharpRemotingDLL)
Activator.GetObject(typeof(SharpRemotingDLL),
"tcp://localhost:10025/SharpRemotingDLL");
SharpRemotingDLL servers[1] = (SharpRemotingDLL)
Activator.GetObject(typeof(SharpRemotingDLL),
"tcp://localhost:10026/SharpRemotingDLL");
Console.WriteLine(server0.getRemoteMessage(server1));
}
How do I correctly pass server1 as a parameter to the getRemoteMessage method?

vbigiani,
This article should shed some light on your problem:
http://weblogs.asp.net/jan/archive/2003/06/01/8106.aspx
If that doesn't work, you can get several relevant Google hits here:
Because of security restrictions, the type System.Runtime.Remoting.ObjRef cannot be accessed

I have written this kind of code before, but I have never tried to pass a server object to another server object in this way. I'm not a security expert, but I can sense why this might not be allowed.
You should obtain the message directly from Server1, rather than asking another remote server to return it. In other words, your message retrieval logic needs to be in the client.