I have example code based on windows form application in .NET but I want to implement same code in web application.I can use same methods and classes in web app but there is one method (backgroundworker) which is not working in web application.I tried using background worker in aspx but I am not able to establish connection.
This is my windows form application code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.IO;
namespace ServerClient
{
public partial class Form1 : Form
{
private TcpClient client;
public StreamReader STR;
public StreamWriter STW;
public String receive = "kkkk";
public String text_to_send;
TcpListener listener;
public Form1()
{
InitializeComponent();
IPAddress[] localIP = Dns.GetHostAddresses(Dns.GetHostName()); // get by own IP
foreach(IPAddress address in localIP)
{
if(address.AddressFamily == AddressFamily.InterNetwork)
{
textBox3.Text = address.ToString();
}
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button2_Click(object sender, EventArgs e) // start server
{
listener = new TcpListener(IPAddress.Any, int.Parse(textBox4.Text));
listener.Start();
client = listener.AcceptTcpClient();
STR = new StreamReader(client.GetStream());
STW = new StreamWriter(client.GetStream());
STW.AutoFlush = true;
backgroundWorker1.RunWorkerAsync(); // start receiving data in background
backgroundWorker2.WorkerSupportsCancellation = true; //Ability to cancel this thread
}
private void textBox5_TextChanged(object sender, EventArgs e)
{
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) //receive data
{
NetworkStream stream = client.GetStream();
Byte[] bytes = new Byte[256];
String data = null;
int i;
// Loop to receive all the data sent by the client.
while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
{
// Translate data bytes to a ASCII string.
data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
byte[] bHex = Encoding.ASCII.GetBytes(data);
this.textBox2.Invoke(new MethodInvoker(delegate () { textBox2.AppendText("GSM:" + data + "\n"); }));
//Console.WriteLine("Received: {0}", data);
// Process the data sent by the client.
// data = data.ToUpper();
//byte[] msg = System.Text.Encoding.ASCII.GetBytes(data);
// Send back a response.
// stream.Write(msg, 0, msg.Length);
//Console.WriteLine("Sent: {0}", data);
}
}
private void backgroundWorker2_DoWork(object sender, DoWorkEventArgs e) //send data
{
if(client.Connected)
{
STW.WriteLine(text_to_send);
this.textBox2.Invoke(new MethodInvoker(delegate () { textBox2.AppendText("Me:" + text_to_send + "\n"); }));
}
else
{
MessageBox.Show("Send Failed!");
}
backgroundWorker2.CancelAsync();
}
private void button3_Click(object sender, EventArgs e)
{
client = new TcpClient();
IPEndPoint IP_End = new IPEndPoint(IPAddress.Parse(textBox5.Text), int.Parse(textBox6.Text));
try
{
client.Connect(IP_End);
if (client.Connected)
{
textBox2.AppendText("Connected To Server" + "\n");
STW = new StreamWriter(client.GetStream());
STR = new StreamReader(client.GetStream());
STW.AutoFlush = true;
backgroundWorker1.RunWorkerAsync(); // start receiving data in background
backgroundWorker2.WorkerSupportsCancellation = true; //Ability to cancel this thread
}
}
catch(Exception x)
{
MessageBox.Show(x.Message.ToString());
}
}
private void button1_Click(object sender, EventArgs e) // Send button
{
if(textBox1.Text != "")
{
text_to_send = textBox1.Text;
backgroundWorker2.RunWorkerAsync();
}
textBox1.Text = "";
}
private void textBox3_TextChanged(object sender, EventArgs e)
{
}
private void textBox4_TextChanged(object sender, EventArgs e)
{
}
}
}
Is it possible to use this code to built web application or can you give me any sample code which use TCP/IP protocol in client server communication in web app.Please help.Thanks in advance
