C# Check If Internet Connection is Available

Networking - C# Checking Internet Connection

While developing a web application in asp.net, this is very important to check whether the internet connection is available or not. 

So in this post I will show how to detect working internet connection and what is the fastest and most efficient way to check for Internet connection in asp.net web application using C#. Find the below code :-

Read more about How to get IP Address of Visitors Machine in ASP.Net

Check Internet Connectivity

Default.aspx.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            bool flag = CheckForInternetConnection();

            if (flag == true)

            { Response.Write("Internet connection is working."); }

            else

            { Response.Write("Internet connection is not working."); }

        }

    }

    public bool CheckForInternetConnection()

    {

        try

        {

            using (var client = new WebClient())

            using (var stream = client.OpenRead("http://www.google.com"))

            {

                return true;

            }

        }

        catch

        {

            return false;

        }

    }

}

I hope you will enjoy the development tips while programming with C#. I would like to have feedback from my blog readers. Your valuable feedback, question, or comments about this article are always welcome. 

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