C# Checking Online Availability with IP and Port

[1UP DF Member Posts:22 Threads:20 Reputation 0]

Code:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Net.Sockets;

namespace CSharpCheckingOnlineAvailabilityIPPort

{

   public partial class Form1 : Form

   {

       public Form1()

       {

           InitializeComponent();

       }

       private void btn_CheckServer_Click(object sender, EventArgs e)

       {

           TcpClient logonServer = new TcpClient();

           try

           {

               logonServer.Connect("127.0.0.1", 80); //this is just your loop back and checking to see if port 80 is open swap out for whatever you want

           }

           catch (Exception ex)

           {

           

           }

           if (logonServer.Connected)

               this.Text = "Connected";

           else

               this.Text = "Not connected";

           logonServer.Close();

 

       }

   }

}

Source Code

[Red Painting the town Red Posts:3,748 Threads:228 Reputation 92]

Great share! Thank you for the code and the source.

[Axe Staff Management Posts:1,858 Threads:162 Reputation 52]

Great of you to start off with tutorials. Much appreciated man.