C # background GPS coordinates converted into Baidu coordinates

protected void Page_Load (object sender, EventArgs e)
{

           
  　　　　　　 //get current Latitude            stringLatitude ="117.707677"; //Get current longitude            stringLongitude ="39.084097"; //Baidu coordinate conversion API            stringPath ="http://api.map.baidu.com/ag/coord/convert?from=0&to=4&x="+ Latitude +"&y="+ Longitude +""; HttpWebRequest WebRequest=(HttpWebRequest) webrequest.create (path); Webrequest.method="GET"; HttpWebResponse WebResponse=(HttpWebResponse) webrequest.getresponse (); StreamReader SR=NewStreamReader (WebResponse.GetResponseStream (), Encoding.UTF8); stringStrjson =Sr.            ReadToEnd (); JavaScriptSerializer JS=NewJavaScriptSerializer (); Mapconvert MC= js. Deserialize<mapconvert>(Strjson); if(Mc.error = ="0")            {                stringLon =mc.x; stringLat =mc.y; //perform Base64 decoding                byte[] Xbuffer =convert.frombase64string (LON); stringStrx = Encoding.UTF8.GetString (Xbuffer,0, xbuffer.length); byte[] Ybuffer =convert.frombase64string (LAT); stringStry = Encoding.UTF8.GetString (Ybuffer,0, xbuffer.length); stringStrB = Strx +","+Stry; }            Else            {                stringStrB ="Get failed"; }        }    }     Public classMapconvert { Public stringError {Get;Set; }  Public stringx {Get;Set; }  Public stringY {Get;Set; } }

C # background GPS coordinates converted into Baidu coordinates