Im trying to communicate with two pc's via an ethernet cable. I've gone into the settings and told it to use two specific ip addresses. Ive turned the firewalls off on both pc's and managed to ping from one pc to the other. When i try and use the following code, its not working though. Something about nothing listening at the specified address. Any ideas?
//SERVER
using System;
using System.ServiceModel;
namespace WCFServer
{
[ServiceContract]
public interface IStringReverser
{
[OperationContract]
string ReverseString(string value);
}
public class StringReverser : IStringReverser
{
public string ReverseString(string value)
{
char[] retVal = value.ToCharArray();
int idx = 0;
for (int i = value.Length - 1; i >= 0; i--)
retVal[idx++] = value[i];
return new string(retVal);
}
}
class Program
{
static void Main(string[] args)
{
using (ServiceHost host = new ServiceHost(
typeof(StringReverser),
new Uri[]{
new Uri("http://192.168.10.10")
}))
{
host.AddServiceEndpoint(typeof(IStringReverser),
new BasicHttpBinding(),
"Reverse");
host.Open();
Console.WriteLine("Service is available. " +
"Press <ENTER> to exit.");
Console.ReadLine();
host.Close();
}
}
}
}
//CLIENT
using System;
using System.ServiceModel;
using System.ServiceModel.Channels;
namespace WCFClient
{
[ServiceContract]
public interface IStringReverser
{
[OperationContract]
string ReverseString(string value);
}
class Program
{
static void Main(string[] args)
{
ChannelFactory<IStringReverser> httpFactory =
new ChannelFactory<IStringReverser>(
new BasicHttpBinding(),
new EndpointAddress(
"http://192.168.10.9"));
IStringReverser httpProxy =
httpFactory.CreateChannel();
while (true)
{
string str = Console.ReadLine();
Console.WriteLine("http: " +
httpProxy.ReverseString(str));
}
}
}
}
The Address your service is listening to is http://192.168.10.10/Reverse (Uri you gave plus endpoint name you gave), you should connect your client to this endpoint instead of http://192.168.10.9.
Related
I am creating a multithread server and I am using mutex to control the sending data, the problem is when a client disconnect all the others clients also disconnect.
This is the server code
using Newtonsoft.Json;
using Pastel;
using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Security.AccessControl;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace DeepestSwordServer
{
public class Program
{
public static TcpListener server;
public static TcpClient client = new TcpClient();
public static Thread t;
public static Mutex mutex = new Mutex(false, "poligamerMod");
public static List<Connection> list = new List<Connection>();
public static Connection con;
static void Main(string[] args)
{
string ConfigPath = Path.Combine(Environment.CurrentDirectory, "config.json");
if (File.Exists(ConfigPath))
{
Console.WriteLine("Starting Server...".Pastel(Color.FromArgb(165, 229, 250)));
try
{
string json = File.ReadAllText(ConfigPath);
Config config = JsonConvert.DeserializeObject<Config>(json);
Start(config.Ip, config.Port);
}
catch (Exception e)
{
Console.WriteLine($"Failed To Start Server Error: {e.Message}".Pastel(Color.FromArgb(255, 0, 0)));
}
}
else
{
Console.WriteLine("Creating Config File...".Pastel(Color.FromArgb(165, 229, 250)));
Config config = new Config();
config.Ip = "0.0.0.0";
config.Port = 3878;
string json = JsonConvert.SerializeObject(config);
File.Create(ConfigPath).Dispose();
File.WriteAllText(ConfigPath, json);
Console.WriteLine("File Created!".Pastel(Color.FromArgb(58, 255, 0)));
Console.WriteLine("Please see the config.json where is the ip, port and password if needed of the server, you need to restart the server!".Pastel(Color.FromArgb(165, 229, 250)));
Console.ReadLine();
}
}
public static void Start(string ip, int port)
{
Console.WriteLine("Server Ready!".Pastel(Color.FromArgb(58, 255, 0)));
server = new TcpListener(IPAddress.Parse(ip), port);
server.Start();
while (true)
{
client = server.AcceptTcpClient();
con = new Connection();
con.stream = client.GetStream();
con.streamr = new StreamReader(con.stream);
con.streamw = new StreamWriter(con.stream);
con.username = con.streamr.ReadLine();
con.id = con.streamr.ReadLine();
Event #event = new Event();
#event.EventType = EventType.Join;
#event.Username = con.username;
#event.Id = con.id;
string join = JsonConvert.SerializeObject(#event);
foreach (Connection c in list)
{
c.streamw.WriteLine(join);
#event = new Event();
#event.EventType = EventType.Join;
#event.Username = c.username;
#event.Id = c.id;
string newJoin = JsonConvert.SerializeObject(#event);
con.streamw.WriteLine(newJoin);
}
list.Add(con);
#event = new Event();
#event.EventType = EventType.List;
foreach (Connection c in list.ToList())
{
#event.List.Add(c.username, c.id);
}
string playerList = JsonConvert.SerializeObject(#event);
con.streamw.WriteLine(playerList);
Console.WriteLine($"{con.username} with id {con.id} has connected!".Pastel(Color.FromArgb(58, 255, 0)));
t = new Thread(HearConnection);
t.Start();
}
}
public static void HearConnection()
{
Connection hcon = con;
do
{
try
{
foreach (Connection c in list.ToList())
{
mutex.WaitOne();
c.streamw.WriteLine(hcon.streamr.ReadLine());
mutex.ReleaseMutex();
}
}
catch (Exception e)
{
list.Remove(hcon);
Event #event = new Event();
#event.EventType = EventType.Leave;
#event.Username = con.username;
#event.Id = con.id;
string leave = JsonConvert.SerializeObject(#event);
foreach (Connection c in list)
{
c.streamw.WriteLine(leave);
}
Console.WriteLine($"{hcon.username} with id {hcon.id} has disconnected!".Pastel(Color.FromArgb(255, 0, 0)));
Console.WriteLine(e.ToString());
break;
}
} while (true);
}
public struct Connection
{
public NetworkStream stream;
public StreamWriter streamw;
public StreamReader streamr;
public string username;
public string id;
}
}
}
Here is the important parts of the client code
public void Connect()
{
MultiPlayerSubMenu.transform.GetChild(2).gameObject.GetComponent<Button>().enabled = false;
MultiPlayerSubMenu.transform.GetChild(2).GetChild(0).gameObject.GetComponent<TextMeshProUGUI>().text = "Connecting...";
try
{
client.Connect(IPAddress.Parse(Ip.GetComponent<InputField>().text), Convert.ToInt32(Port.GetComponent<InputField>().text));
if (client.Connected)
{
t = new Thread(Listen);
stream = client.GetStream();
streamw = new StreamWriter(stream);
streamr = new StreamReader(stream);
streamw.AutoFlush = true;
streamw.WriteLine(Username);
streamw.WriteLine(Id);
t.IsBackground = true;
t.Start();
StartCoroutine(Yes());
}
else
{
MultiPlayerSubMenu.transform.GetChild(2).GetChild(0).gameObject.GetComponent<TextMeshProUGUI>().text = "Cant Connect To Server!";
MultiPlayerSubMenu.transform.GetChild(2).gameObject.GetComponent<Image>().color = Color.red;
StartCoroutine(No());
}
}
catch (Exception e)
{
Logger.LogInfo(e.Message);
MultiPlayerSubMenu.transform.GetChild(2).GetChild(0).gameObject.GetComponent<TextMeshProUGUI>().text = "Cant Connect To Server!";
MultiPlayerSubMenu.transform.GetChild(2).gameObject.GetComponent<Image>().color = Color.red;
StartCoroutine(No());
}
}
public void Listen()
{
while (client.Connected)
{
try
{
string message = streamr.ReadLine();
DoEvent(message);
Logger.LogInfo(message);
}
catch(Exception e)
{
if (!client.Connected)
{
LostConnection = true;
}
else
{
Logger.LogError(e.ToString());
}
}
}
}
What I want is that the others clients dont disconnect if one client disconnect.
I am trying to check if the program svchost is running which is actually Windows service.
If that service is not running, start it again. I mean if the user try to end the task from task manager start it again.
You can do like this.
ServiceController sc = new ServiceController(ServiceName);
if (sc.Status == ServiceControllerStatus.Running)
{
//do something
}
else
{
sc.Start();
}
I would say check for ServiceControllerStatus.Stopped status and then start the service.
and to answer your other question how to get PID.
int pid= Process.GetProcessesByName(ServiceName)[0].Id;
Update from previous answer:
using System;
using System.Collections.Generic;
using System.Linq;
using System.ServiceProcess;
using System.Management;
using System.ServiceModel;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
namespace ConsoleApp3
{
class Program
{
static void Main(string[] args)
{
var data = IsServiceActive("unstoppable");
Console.WriteLine("PID: {0}, Status: {1}", data.Id, data.Status);
Console.ReadLine();
}
private static SrvData IsServiceActive(string srvname)
{
string status = "NA";
int id = -1;
ServiceController[] srvc = ServiceController.GetServices();
foreach (var sr in srvc)
{
if (sr.ServiceName == srvname)
{
// get status
status = sr.Status.ToString();
// get id
ManagementObject wmiService;
wmiService = new ManagementObject("Win32_Service.Name='" + srvname + "'");
wmiService.Get();
id = Convert.ToInt32(wmiService["ProcessId"]);
break;
}
}
SrvData result = new SrvData() { Id = id, Status = status };
return result;
}
}
public class SrvData
{
public string Status { get; set; }
public int Id { get; set; }
}
}
i want to send specific objects thru a simple named pipe. I think the receiver does not recognize the cut between two sent objects. In the result, i get an xml serialization error. Here is my code:
Server process:
using System;
using System.IO;
using System.IO.Pipes;
using System.Threading;
using System.Xml.Serialization;
namespace NamedPipe
{
class ProgramServer
{
static void Main(string[] args)
{
NamedPipeServerStream server;
server = new NamedPipeServerStream("PipesOfPiece");
server.WaitForConnection();
StreamReader reader = new StreamReader(server);
StreamWriter writer = new StreamWriter(server);
Console.WriteLine("Start loop. ");
Thread.Sleep(1000);
while (true)
{
XmlSerializer receiver = new XmlSerializer(typeof(PayLoad));
object testobj = receiver.Deserialize(reader);
Console.WriteLine("Testobject: " + ((PayLoad)(testobj)).name + ((PayLoad)(testobj)).count);
}
}
}
}
Client process:
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Pipes;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;
namespace NamedPipe
{
class ProgramClient
{
static void Main(string[] args)
{
//Client
var client = new NamedPipeClientStream("PipesOfPiece");
client.Connect();
StreamReader reader = new StreamReader(client);
while (true)
{
StreamWriter writer = new StreamWriter(client);
PayLoad test = new PayLoad
()
{
name = "Test",
count = 42
};
XmlSerializer sendSerializer = new XmlSerializer(typeof(PayLoad));
sendSerializer.Serialize(writer, test);
}
}
}
}
I have tried recently using NamedPipes without WCF. You can look into this code which might give you some idea. Here, Client is enabled with Callback functionality so server can callback the client.
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
const string PIPE_NAME = "testPipeName33";
const string OBJECT_NAME = "test";
const string CALLBACK_PIPE_NAME = "testPipeName34";
const string CALLBACK_OBJECT_NAME = "testclient";
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
if ((args.Length == 0 || args[0] == "s"))
{
try
{
IPCRegistration.RegisterServer(PIPE_NAME,OBJECT_NAME);
}
catch (RemotingException)
{
remoteObject = IPCRegistration.RegisterClient(typeof(RemoteObject),PIPE_NAME,OBJECT_NAME);
remoteObject.OnNewProcessStarted("test");
Application.Exit();
return;
}
MessageBox.Show("Server:" + Process.GetCurrentProcess().Id);
Process.Start(Application.ExecutablePath, "c");
Application.Run(new Form1("Server"));
}
else
{
IsClient = true;
remoteObject = IPCRegistration.RegisterClient(typeof(RemoteObject), PIPE_NAME, OBJECT_NAME);
IPCRegistration.RegisterServer(CALLBACK_PIPE_NAME, CALLBACK_OBJECT_NAME); // Here Client will listen on this channel.
remoteObject.SetOnNewProcessStarted(OnNewProcessStarted,Process.GetCurrentProcess().Id.ToString());
MessageBox.Show("Client:" + Process.GetCurrentProcess().Id);
Application.Run(new Form1("Client"));
}
}
static RemoteObject remoteObject;
static bool IsClient = false;
static bool OnNewProcessStarted(string commandLine)
{
MessageBox.Show("saved:"+commandLine+" Currrent:"+Process.GetCurrentProcess().Id);
MessageBox.Show("Is Client : " + IsClient);//problem here, IsClient should be true
return true;
}
}
public delegate bool OnNewProcessStartedDelegate(string text);
internal class RemoteObject : MarshalByRefObject
{
public OnNewProcessStartedDelegate OnNewProcessStartedHandler;
public string value;
public bool isCallBack = false;
const string PIPE_NAME = "testPipeName33";
const string OBJECT_NAME = "test";
const string CALLBACK_PIPE_NAME = "testPipeName34";
const string CALLBACK_OBJECT_NAME = "testclient";
RemoteObject remoteObject;
public bool OnNewProcessStarted(string commandLine)
{
if (!isCallBack)
{
remoteObject.isCallBack = true;
return remoteObject.OnNewProcessStarted(commandLine);
}
if (OnNewProcessStartedHandler != null)
return OnNewProcessStartedHandler(value);
return false;
}
public void SetOnNewProcessStarted(OnNewProcessStartedDelegate onNewProcessStarted,string value)
{
this.value = value;
OnNewProcessStartedHandler = onNewProcessStarted;
if (!isCallBack)
{
remoteObject = IPCRegistration.RegisterClient(typeof(RemoteObject), CALLBACK_PIPE_NAME, CALLBACK_OBJECT_NAME);
remoteObject.isCallBack = true;
remoteObject.SetOnNewProcessStarted(onNewProcessStarted, Process.GetCurrentProcess().Id.ToString());
}
}
public override object InitializeLifetimeService()
{
return null;
}
}
internal class IPCRegistration
{
public static RemoteObject RegisterClient(Type remoteObject,string PIPE_NAME,string OBJECT_NAME)
{
IpcClientChannel chan = new IpcClientChannel();
ChannelServices.RegisterChannel(chan, false);
RemoteObject remoteObjectInstance = (RemoteObject)Activator.GetObject(remoteObject,
string.Format("ipc://{0}/{1}", PIPE_NAME, OBJECT_NAME));
return remoteObjectInstance;
}
public static void RegisterServer(string pipeName, string objectName)
{
BinaryServerFormatterSinkProvider serverProvider = new BinaryServerFormatterSinkProvider();
serverProvider.TypeFilterLevel = TypeFilterLevel.Full;
IpcServerChannel chan = new IpcServerChannel("", pipeName, serverProvider);
ChannelServices.RegisterChannel(chan, false);
RemotingServices.Marshal(new RemoteObject(), objectName);
}
}
I'm a student trying to set up a WCF service. I got the host and client running with a servicelibrary, and it works fine until my client tries to call upon a service that accesses a library (Gamez) I've made. The method it calls upon works fine normally, it's just through the WCF that it suddenly crashes it.
So say it calls upon this:
public int AddValues(int a, int b)
{
int c = a + b;
return c;
}
It'll work fine, but this:
public Guid GetUserId(String userName)
{
Guid user = Gamez.Sql.GetIdFromUserName(userName);
return user;
}
=boom. Keep in mind that the GetIdFromUserName method works fine when called on from non-WCF-related code.
This is the client-side code:
namespace WCFClient
{
class Program
{
static void Main(string[] args)
{
Service1Client client = new Service1Client();
client.Open();
String gameName = "Liksomspill";
String userName = "Grouse";
//int result = client.GetHighScore(userName, gameName);
//Console.WriteLine("highscoren er: {0}", result);
//Guid result = client.GetUserId(userName);
//Console.WriteLine("blablabla: {0}", result);
int a = 5;
int b = 2;
int result2 = client.AddValues(a, b);
Console.WriteLine("highscoren er {0}", result2);
Console.WriteLine();
Console.ReadLine();
client.Close();
}
}
}
This will work fine as long as it stays like this (so it'll return 7), but if I remove commenting from these lines:
Guid result = client.GetUserId(userName);
Console.WriteLine("blablabla: {0}", result);
the top line will throw an exception, but I have no idea what it is as it only says "FaultException`1 was unhandled" with subtext "The type initializer for 'Gamez.Sql' threw an exception.". I've tried looking this up, but I don't really understand how to fix this (I'm coding in Visual Studio 2012). Here are some of the links I found on the subject, but it's just massively confusing me:
http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/1829b844-1237-4390-8d36-76a7e42a64d3/
http://sergecalderara.wordpress.com/2008/11/25/systemservicemodelfaultexception1-was-unhandled-by-user-code/
I'm sure there is just something basic which I am completely overseeing (...you are supposed to be able to call libraries with the wcf service, right? Or do I have to incorporate the parts of my library I want to use into the service library?). I've added references to the library so that shouldn't be a problem. I'm sorry if this question is kinda stupid, but I'm tearing myself apart in frustration after banging my head against the issue for six hours.
If you need some background information, I'm basically trying to set up an API for games uploaded to a website I'm making (so the games can extract/insert highscores, etc. from the database).
Thank you so much for your time.
If needed, here is the host code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ServiceModel;
using WcfServiceLibrary;
using System.ServiceModel.Description;
namespace WCFHost
{
class Program
{
static void Main(string[] args)
{
Uri baseAddress = new Uri("http://localhost:8000/WCF");
ServiceHost selfHost = new ServiceHost(typeof(Service1), baseAddress);
ServiceDebugBehavior debug = selfHost.Description.Behaviors.Find<ServiceDebugBehavior>();
if (debug == null)
{
selfHost.Description.Behaviors.Add(
new ServiceDebugBehavior() { IncludeExceptionDetailInFaults = true });
}
else
{
if (!debug.IncludeExceptionDetailInFaults)
{
debug.IncludeExceptionDetailInFaults = true;
}
}
try
{
//selfHost.Open();
selfHost.AddServiceEndpoint(typeof(IService1), new WSHttpBinding(), "Service1Service");
ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
smb.HttpGetEnabled = true;
selfHost.Description.Behaviors.Add(smb);
selfHost.Open();
Console.WriteLine("The service is ready");
Console.WriteLine("Press enter to terminate service");
Console.WriteLine();
Console.ReadLine();
selfHost.Close();
}
catch (CommunicationException ce)
{
Console.WriteLine("An exception occured: {0}", ce.Message);
selfHost.Abort();
}
}
}
}
And here is the ServiceLibrary code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;
using Gamez;
namespace WcfServiceLibrary
{
public class Service1 : IService1
{
public string GetData(int value)
{
return string.Format("You entered: {0}", value);
}
public void SetHighScore(int score, String userName)
{
}
public int GetHighScore(String userName, String gameName)
{
int score = Gamez.Sql.getHighScore(userName, gameName);
return score;
}
public Guid GetUserId(String userName)
{
Guid user = Gamez.Sql.GetIdFromUserName(userName);
return user;
}
public CompositeType GetDataUsingDataContract(CompositeType composite)
{
if (composite == null)
{
throw new ArgumentNullException("composite");
}
if (composite.BoolValue)
{
composite.StringValue += "Suffix";
}
return composite;
}
public int AddValues(int a, int b)
{
int c = a + b;
return c;
}
}
}
I have the email address of a Lync user and want to send him an instant message.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Lync.Model;
using Microsoft.Lync.Model.Conversation;
namespace Build_Server_Lync_Notifier
{
class Program
{
static void Main(string[] args)
{
if (args.Length != 2)
{
Console.WriteLine("Usage: bsln.exe <uri> <message>");
return;
}
LyncClient client = Microsoft.Lync.Model.LyncClient.GetClient();
Contact contact = client.ContactManager.GetContactByUri(args[0]);
Conversation conversation = client.ConversationManager.AddConversation();
conversation.AddParticipant(contact);
Dictionary<InstantMessageContentType, String> messages = new Dictionary<InstantMessageContentType, String>();
messages.Add(InstantMessageContentType.PlainText, args[1]);
InstantMessageModality m = (InstantMessageModality) conversation.Modalities[ModalityTypes.InstantMessage];
m.BeginSendMessage(messages, null, messages);
//Console.Read();
}
}
}
Screenshot
Link to large screenshot: http://i.imgur.com/LMHEF.png
As you can see in this screenshot, my program doesn't really seem to work, even though I'm able to manually search up the contact and send an instant message manually.
I also tried using ContactManager.BeginSearch() instead of ContactManager.GetContactByUri(), but got the same result (you can see in the screenshot): http://pastie.org/private/o9joyzvux4mkhzsjw1pioa
Ok, so I got it working now. Got it in a working state, although I need to do some serious refactoring.
Program.cs
using System;
namespace Build_Server_Lync_Notifier
{
class Program
{
static void Main(string[] args)
{
if (args.Length != 2)
{
Console.WriteLine("Usage: bsln.exe <uri> <message>");
return;
}
LyncManager lm = new LyncManager(args[0], args[1]);
while (!lm.Done)
{
System.Threading.Thread.Sleep(500);
}
}
}
}
LyncManager.cs
using Microsoft.Lync.Model;
using Microsoft.Lync.Model.Conversation;
using System;
using System.Collections.Generic;
namespace Build_Server_Lync_Notifier
{
class LyncManager
{
private string _uri;
private string _message;
private LyncClient _client;
private Conversation _conversation;
private bool _done = false;
public bool Done
{
get { return _done; }
}
public LyncManager(string arg0, string arg1)
{
_uri = arg0;
_message = arg1;
_client = Microsoft.Lync.Model.LyncClient.GetClient();
_client.ContactManager.BeginSearch(
_uri,
SearchProviders.GlobalAddressList,
SearchFields.EmailAddresses,
SearchOptions.ContactsOnly,
2,
BeginSearchCallback,
new object[] { _client.ContactManager, _uri }
);
}
private void BeginSearchCallback(IAsyncResult r)
{
object[] asyncState = (object[]) r.AsyncState;
ContactManager cm = (ContactManager) asyncState[0];
try
{
SearchResults results = cm.EndSearch(r);
if (results.AllResults.Count == 0)
{
Console.WriteLine("No results.");
}
else if (results.AllResults.Count == 1)
{
ContactSubscription srs = cm.CreateSubscription();
Contact contact = results.Contacts[0];
srs.AddContact(contact);
ContactInformationType[] contactInformationTypes = { ContactInformationType.Availability, ContactInformationType.ActivityId };
srs.Subscribe(ContactSubscriptionRefreshRate.High, contactInformationTypes);
_conversation = _client.ConversationManager.AddConversation();
_conversation.AddParticipant(contact);
Dictionary<InstantMessageContentType, String> messages = new Dictionary<InstantMessageContentType, String>();
messages.Add(InstantMessageContentType.PlainText, _message);
InstantMessageModality m = (InstantMessageModality)_conversation.Modalities[ModalityTypes.InstantMessage];
m.BeginSendMessage(messages, BeginSendMessageCallback, messages);
}
else
{
Console.WriteLine("More than one result.");
}
}
catch (SearchException se)
{
Console.WriteLine("Search failed: " + se.Reason.ToString());
}
_client.ContactManager.EndSearch(r);
}
private void BeginSendMessageCallback(IAsyncResult r)
{
_conversation.End();
_done = true;
}
}
}
Try Below Code its working Fine For me
protected void Page_Load(object sender, EventArgs e)
{
SendLyncMessage();
}
private static void SendLyncMessage()
{
string[] targetContactUris = {"sip:xxxx#domain.com"};
LyncClient client = LyncClient.GetClient();
Conversation conv = client.ConversationManager.AddConversation();
foreach (string target in targetContactUris)
{
conv.AddParticipant(client.ContactManager.GetContactByUri(target));
}
InstantMessageModality m = conv.Modalities[ModalityTypes.InstantMessage] as InstantMessageModality;
m.BeginSendMessage("Test Message", null, null);
}