protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { Session["X"] = "121.459441"; Session["Y"] = "31.224461"; List <MDSearch> list = mss.GetProvince(int.Parse(DropDownList4.SelectedValue)); DataTable dt2 = ListToDataTable(list); DropDownList1.Items.Clear(); DropDownList1.Items.Add(new ListItem("请选择省份")); foreach (DataRow dr in dt2.Rows) { DropDownList1.Items.Add(new ListItem(dr["Province"].ToString())); } try { if (Request.QueryString["code"] != null) { try { string url = string.Format(@"https://api.weixin.qq.com/sns/oauth2/access_token?appid=" + GetAppid(AppConfig.FWHOriginalID) + "&secret=" + GetSecret(AppConfig.FWHOriginalID) + "&code={0}&grant_type=authorization_code", Request.QueryString["code"].ToString()); string token = PostRequest(url); if (token.Contains("7200")) { string[] b = token.Split('\"'); Session["FromUserName"] = b[13]; Session["ToUserName"] = GetAppid(AppConfig.FWHOriginalID); } } catch (Exception) { } } } catch (Exception) { } } try { if (!IsPostBack) { PageLoad(); } } catch (Exception) { } }