Creating Text file

string Filename = System.Web.HttpContext.Current.Server.MapPath(@"~\TextFiles\new.txt");

        FileStream fs = null;

        StreamWriter sw = null;

        try

        {

            fs = new FileStream(Filename, FileMode.Append, FileAccess.Write);

            sw = new StreamWriter(fs);

            try

            {

                sw.WriteLine("Hello...!");

            }

            catch { }

            finally { sw.Flush(); sw.Dispose(); sw.Close(); fs.Close(); }

        }

        catch { }