//using System.Web; 
 
//to return "http://www.samplepage.com/Egli/index.aspx"
string url = HttpContext.Current.Request.Url.AbsoluteUri;
 
//to return "/Egli/index.aspx"
string path = HttpContext.Current.Request.Url.AbsolutePath;
 
//to return "www.samplepage.com"
string host = HttpContext.Current.Request.Url.Host;