here am trying to create a chat application i am new to this i want group chat also.here am connecting to openfire using xmpp server but showing error
An exception of type ‘System.IO.FileNotFoundException’ occurred in xmppStart.exe but was not handled in user code
Additional information: Could not load file or assembly ‘System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e’ or one of its dependencies. The system cannot find the file specified.
if this is not the way to connect server pls let me know… how can i send and receive a message pls help me
my code is here
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using System.Net.XMPP;
using System.Threading;
using Windows.UI.Popups;
// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=391641
namespace xmppStart
{
public sealed partial class MainPage : Page
{
public XMPPClient ObjXmppClient { get; set; }
public XMPPConnection ObjXmppCon { get; set; }
public string username = “sree”;
public string password = “sree”;
public readonly string server = “taurus”;
private Boolean IsXmppSuccess { get; set; }
private readonly String ServerIPAddress = “127.0.0.1:9090/”;
public MainPage()
{
this.InitializeComponent();
this.NavigationCacheMode = NavigationCacheMode.Required;
}
private void IsXmppValid()
{
XMPPClient ObjXmppClient = new XMPPClient();// here am getting error
// An exception of type ‘System.IO.FileNotFoundException’ occurred in xmppStart.exe but was not handled in user code
//Additional information: Could not load file or assembly ‘System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e’ or one of its dependencies. The system cannot find the file specified.
//initializing the xmpp client with credentials
ObjXmppClient.JID = username + “@” + server;
ObjXmppClient.Password = password;
ObjXmppClient.Server = server; //user server for emulator and ip address for device.
ObjXmppClient.AutoReconnect = true;
ObjXmppClient.RetrieveRoster = true;
ObjXmppClient.PresenceStatus = new PresenceStatus() { PresenceType = PresenceType.available, IsOnline = true };
ObjXmppClient.AutoAcceptPresenceSubscribe = true;
ObjXmppClient.AttemptReconnectOnBadPing = true;
ObjXmppCon = new XMPPConnection(ObjXmppClient);
ObjXmppCon.Connect();
ObjXmppClient.Connect();
//initializing the xmpp connection
ObjXmppCon.OnAsyncConnectFinished += ObjXmppCon_OnAsyncConnectFinished;
ObjXmppClient.OnStateChanged += new EventHandler(xMPPClient_OnStateChanged);
}
void ObjXmppCon_OnAsyncConnectFinished(xmedianet.socketserver.SocketClient client, bool bSuccess, string strErrors)
{
IsXmppSuccess = client.Connected;
}
public async void xMPPClient_OnStateChanged(object sender, EventArgs e)
{
switch (ObjXmppClient.XMPPState)
{
case XMPPState.Ready:
if (IsXmppSuccess)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
Frame.Navigate(typeof(Logedin));
});
}
else
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
MessageDialog msgbox = new MessageDialog(“Check server name/IpAddress”);
});
}
break;
case XMPPState.AuthenticationFailed: await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
MessageDialog msgbox = new MessageDialog(“Enter valid username and password”);
return;
}); break;
}
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
}
private void Button_Click(object sender, RoutedEventArgs e)
{
if (txtname.Text == string.Empty)
{
MessageDialog msgbox = new MessageDialog(“enter user name”);
return;
}
if (txtpassword.Text == string.Empty)
{
MessageDialog msgbox = new MessageDialog(“enter password”);
return;
}
username = txtname.Text;
password = txtpassword.Text;
IsXmppValid();
}
}
}
how can i send & recive messages??? no idea pls help me