"https://graph.facebook.com/"+Session["uid"].ToString()+"/feed?message="+Message+"&access_token="+Session["accessToken"].ToString()+""
 var postValues = new Dictionary<string, string>();
            LoginSocialMedia _LoginSocialMedia = new LoginSocialMedia();
            _LoginSocialMedia = Session["ModelData"] as LoginSocialMedia;
            Session["uid"] = _LoginSocialMedia.UserId;
            // list of available parameters available @ http://developers.facebook.com/docs/reference/api/post
            postValues.Add("access_token", Session["accessToken"].ToString());
            postValues.Add("message", Message);
            string facebookWallMsgId = string.Empty;
            string response;
            //MethodResult header = SubmitPost(string.Format("https://graph.facebook.com/{0}/feed", Session["uid"].ToString()),
            //                                            BuildPostString(postValues),
            //                                            out response);
       
            MethodResult header = SubmitPost("https://graph.facebook.com/"+Session["uid"].ToString()+"/feed?message="+Message+"&access_token="+Session["accessToken"].ToString()+"",
                                                        BuildPostString(postValues), out response);
             
            if (header.returnCode == MethodResult.ReturnCode.Success)
            {
                var deserialised =
                    Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(response);
                facebookWallMsgId = deserialised["id"];
                TempData["ResultMes"] = "Successfully posted";
            }
This code is not working and showing 403 access forbidden  .