updatepanel with timer problem

Hi iftikar thank u for replying. As u told i have arranged the code like below but again i am getting the same error like below. Please suggest what to do ??

Only one usage of each socket address (protocol/network address/port) is normally permitted

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Net.Sockets.SocketException: Only one usage of each socket address (protocol/network address/port) is normally permitted

Source Error:

Line 25: Line 26: IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 4321); Line 27: s.Bind(ipep); Line 28: IPAddress ip = IPAddress.Parse("226.1.1.1"); Line 29: s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership,

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Net.Sockets;


public partial class _Default : System.Web.UI.Page
{
  
    byte[] databuffer = new byte[28];
    int DataSize;
    string raw;
    public static Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
        
    protected void Page_Load(object sender, EventArgs e)
    {
      // socket creation operation

        if (!IsPostBack)
        {
          
            IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 4321);
            s.Bind(ipep);
            IPAddress ip = IPAddress.Parse("226.1.1.1");
            s.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership,
            new MulticastOption(ip, IPAddress.Any));
        }     

    }


    protected void Timer1_Tick(object sender, EventArgs e)
    {
              
        DataSize = s.Receive(databuffer);
        raw = System.Text.Encoding.ASCII.GetString(databuffer);
        Label2.Text = raw;
    }
}



XML part

   

   
   

   
   
            UpdateMode="Conditional">
       


           
           
           

           

                         Text="Label">
           

           

                            Text="Label">
           

          
           

           
       
       
           
       
   
  
   

then you do creation part in page_load and other operation in tick part

protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
//do operation
}

}

Regards,
Iftikar

Hi,
        You have to call your function on Timer_Tick instead of Page_load


Regards,
Iftikar