2011-10-01 62 views
0

我使用Facebook API w/oAuth使用其Javascript SDK登錄並設置oAuth = true。我可以從SDK登錄成功,並讓我的xfbml正確呈現。'Facebook.FacebookApplication'的類型初始值設定項引發異常

我正在使用Facebook C#sdk檢索用戶標識併發布到FB。我寫了一個小測試頁來做到這一點。

HTML是:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="fbtest.aspx.cs" Inherits="fbtest" %> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

<html xmlns="http://www.w3.org/1999/xhtml"> 
<head runat="server"> 
    <title></title> 
</head> 
<body> 
    <form id="form1" runat="server"> 
    <div> 

     ID:<asp:label runat="server" text="Label" ID="Userid"></asp:label><div /> 
     <asp:label runat="server" text="Label" ID="FacebookTokenLabel"></asp:label> 
    </div> 
    </form> 
</body> 
</html> 

後面的代碼是:

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using Facebook; 
using Facebook.Web; 
public partial class fbtest : System.Web.UI.Page 
{ 
    private FacebookWebClient _facebookApp; 
    protected void Page_Load(object sender, EventArgs e) 
    { 
     try 
     { 
      // FacebookWebContext fbWebContext = FacebookWebContext.Current; 
      // FacebookTokenLabel.Text += fbWebContext.AccessToken; 

      FacebookWebClient fb = new FacebookWebClient(); 
      dynamic me = fb.Get("me"); 

      FacebookTokenLabel.Text = me.name; 
      Userid.Text = me.id; 
     } 
     catch (Exception ex) 
     { 
      FacebookTokenLabel.Text = ex.Message + ":" + ex.StackTrace; 
     } 
    } 
} 

我嘗試了所有的瀏覽器(IE9,Chrome瀏覽器14.0.835.186 m和FF 6.0.2),我會得到相同的例外:

ID:Label 
The type initializer for 'Facebook.FacebookApplication' threw an exception.: 
at Facebook.FacebookApplication.get_Current() in e:\Prabir\Documents\Projects\facebooksdk\v5.2.1\Source\Facebook\FacebookApplication.cs:line 48 
at Facebook.Web.FacebookWebContext..ctor() in   e:\Prabir\Documents\Projects\facebooksdk\v5.2.1\Source\Facebook.Web\FacebookWebContext.cs:line 48 
at Facebook.Web.FacebookWebContext.get_Current() in e:\Prabir\Documents\Projects\facebooksdk\v5.2.1\Source\Facebook.Web\FacebookWebContext.cs:line 96 
at fbtest.Page_Load(Object sender, EventArgs e) in c:\inetpub\vhosts\beirutna.com\subdomains\beta\httpdocs\fbtest.aspx.cs:line 16 

你可以嘗試自己: http://beta.beirutna.com並登錄頂部對,它會顯示你的用戶名和磁貼。然後去:http://http://beta.beirutna.com/fbtest.aspx

回答

0

檢查內部異常

在我的情況表明:在嘗試訪問配置節「facebookSettings」 請求ConfigurationPermission失敗。要允許所有調用者訪問本節的數據,請在聲明此節的配置文件中將節屬性'requirePermission'設置爲'false'。

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