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POUDP Connection Between Client and Server
 

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    <p>Here is the server code of my program this is working, but after it sends data it gets stuck. I need it to be refreshed and ready for sending data again.</p> <p>Server code:</p> <pre><code>private void button1_Click(object sender, EventArgs e) { try { String text = textBox1.Text; UdpClient udpc = new UdpClient(text,8899); IPEndPoint ep = null; while (true) { MessageBox.Show("Name: "); string name = textBox2.Text; if (name == "") break; byte[] sdata = Encoding.ASCII.GetBytes(name); udpc.Send(sdata, sdata.Length); if (udpc.Receive(ref ep)==null) { MessageBox.Show("Host not found"); } else { byte[] rdata = udpc.Receive(ref ep); string job = Encoding.ASCII.GetString(rdata); MessageBox.Show(job); } } } catch { MessageBox.Show("Error Restarting"); } </code></pre> <p>Client code:</p> <pre><code>private void button1_Click(object sender, EventArgs e) { try { UdpClient subscriber = new UdpClient(8899); IPAddress addr = IPAddress.Parse("127.0.0.2"); subscriber.JoinMulticastGroup(addr); IPEndPoint ep = null; for (int i = 0; i &lt; 1; i++) { byte[] pdata = subscriber.Receive(ref ep); string strdata = Encoding.ASCII.GetString(pdata); MessageBox.Show(strdata); textBox1.Text = strdata; pass = strdata; } subscriber.DropMulticastGroup(addr); } catch { Refresh(); MessageBox.Show("Not Found"); } } </code></pre> <p>The Server can send data to one client . <strong>I want to send one client at a time.</strong> But after sending the data, the server gets stuck. </p> <p>I need it do refresh and send data again for a client.</p>
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    1. COWhat do you mean with: it gets stuck? Is there an error or just hanging?
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    2. COI cannot access buttons and any thing i have to close it through task manager
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    3. COYou're waiting for a response, but UDP is stateless and data receipt is not guaranteed so if for whatever reason it sends it and it never arrived its not sorted out like TCP.. if you need guarenteed delivery, you need TCP
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