create url in current request code example
Example 1: c# Request.Url
string url = HttpContext.Current.Request.Url.AbsoluteUri;
// http://localhost:1302/TESTERS/Default6.aspx
string path = HttpContext.Current.Request.Url.AbsolutePath;
// /TESTERS/Default6.aspx
string host = HttpContext.Current.Request.Url.Host;
// localhost
Example 2: c# get full URL of page
string absoluteurl = System.Web.HttpContext.Current.Request.Url.AbsoluteUri;