Mega Code Archive
Implementing Sockets in Silverlight Applications
<![CDATA[
<UserControl x:Class='SilverlightApplication3.MainPage'
xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'
xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
xmlns:d='http://schemas.microsoft.com/expression/blend/2008'
xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006'
mc:Ignorable='d'
d:DesignWidth='640'
d:DesignHeight='480'>
<Grid x:Name="LayoutRoot" Background="White">
<Button x:Name="timeBtn" Content="Server Time"/>
<Button x:Name="dateBtn" Content="Server Date"/>
<Button x:Name="fullBtn" Content="Server Full"/>
<TextBlock Text="Server Date / Time"/>
<TextBlock x:Name="serverText"/>
</Grid>
</UserControl>
//File:Page.xaml.cs
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Net;
using System.Net.Sockets;
using System.Text;
namespace SilverlightApplication3
{
public partial class MainPage : UserControl
{
string timeDateFormat;
public MainPage()
{
InitializeComponent();
timeDateFormat = "Full";
timeBtn.Click += new RoutedEventHandler(doGetTime);
dateBtn.Click += new RoutedEventHandler(doGetDate);
fullBtn.Click += new RoutedEventHandler(doGetFull);
}
void doGetTime(object sender, RoutedEventArgs e)
{
timeDateFormat = "Time";
doGetData();
}
void doGetDate(object sender, RoutedEventArgs e)
{
timeDateFormat = "Date";
doGetData();
}
void doGetFull(object sender, RoutedEventArgs e)
{
timeDateFormat = "Full";
doGetData();
}
void doGetData()
{
DnsEndPoint ePoint = new DnsEndPoint(Application.Current.Host.Source.DnsSafeHost,4510);
Socket socket = new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);
SocketAsyncEventArgs sArgs = new SocketAsyncEventArgs();
sArgs.UserToken = socket;
sArgs.RemoteEndPoint = ePoint;
sArgs.Completed += new EventHandler<SocketAsyncEventArgs>(OnConnectCompleted);
socket.ConnectAsync(sArgs);
}
private void OnConnectCompleted(object sender,SocketAsyncEventArgs e)
{
Byte[] bytes = Encoding.UTF8.GetBytes(timeDateFormat);
e.SetBuffer(bytes, 0, bytes.Length);
e.Completed -= new EventHandler<SocketAsyncEventArgs>(OnConnectCompleted);
e.Completed += new EventHandler<SocketAsyncEventArgs>(OnSocketSendCompleted);
Socket socket = (Socket)e.UserToken;
socket.SendAsync(e);
}
private void OnSocketSendCompleted(object sender, SocketAsyncEventArgs e)
{
byte[] response = new byte[1024];
e.SetBuffer(response, 0, response.Length);
e.Completed -= new EventHandler<SocketAsyncEventArgs>(OnSocketSendCompleted);
e.Completed += new EventHandler<SocketAsyncEventArgs>(OnSocketReceive);
Socket socket = (Socket)e.UserToken;
socket.ReceiveAsync(e);
}
private void OnSocketReceive(object sender, SocketAsyncEventArgs e)
{
string data = Encoding.UTF8.GetString(e.Buffer, e.Offset,e.BytesTransferred);
this.Dispatcher.BeginInvoke(delegate {serverText.Text = data;});
Socket socket = (Socket)e.UserToken;
socket.ReceiveAsync(e);
}
}
}
]]>