This tutorial will show you how you can use WebRequest object to read or get html source from a website page in C#.

    
//required .net objects
using System.Net;
using System.IO;

    
// A GetWebHtmlSourceCode function that will return the html source code from a url page
public static string GetWebHtmlSourceCode(string url) {
    string content = "";
    StreamReader objStreamReader = default(StreamReader);
    WebRequest objWebRequest = default(WebRequest);
    WebResponse objWebResponse = default(WebResponse);
    try {
        objWebRequest = WebRequest.Create(url);
        objWebResponse = objWebRequest.GetResponse();
        objStreamReader = new StreamReader(objWebResponse.GetResponseStream());
        content = objStreamReader.ReadToEnd();
        objStreamReader.Close();
    } catch{
        return content;
    }
    return content;
}

    
// How to use this method
protected void Page_Load(object sender, EventArgs e){
    //Lets say we have a literal object called litResult
    litResult.Text = GetWebHtmlSourceCode("http://www.example.com");
}