Question

how to get the servername + foldername without containing the script name?

string filePath = Request.QueryString.Get("filepath");

string serverPath = Request.ServerVariables["SERVER_NAME"] + "/";
string fullUrl = "http://" + serverPath + filePath;
Response.Write(fullUrl);

the above code is missing folder name.

Answer 1

This page demonstrates how the parts of a HttpRequest break down. You could take the Request.FilePath and remove the final segment like so:

string directory = Request.FilePath.Remove(Request.FilePath.LastIndexOf('/'));