Tip: Windows Phone - 匿名类型和 MethodAccessException

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一个wp7应用引用了Facebook csharp sdk 的dll, 传给FacebookClient的方法中使用了一个匿名类型，结果抛出MethodAccessException

使用匿名类型:

fb.PostAsync("oauth/access_token",new                                                          {                                                              client_id = AppId,                                                              client_secret = AppSecret,                                                              redirect_uri = RedirectUri,                                                              code = oauthResult.Code                                                          });

异常代码：

 foreach (var propertyInfo in parameters.GetType().GetProperties())                {                    if (!propertyInfo.CanRead) continue;                    dictionary[propertyInfo.Name] = propertyInfo.GetValue(parameters, null);                }

异常原因: 匿名类型被编译为internal成员，跨程序集访问时会遇到此异常。

解决办法：可在使用匿名类型的程序集AssemblyInfo.cs中使用如下特性：

//make anonymous type in this assembly can be accessible by Facebook.dll[assembly: InternalsVisibleTo("Facebook")]

参考:

http://stackoverflow.com/questions/8273399/anonymous-types-and-get-accessors-on-wp7-1

http://msdn.microsoft.com/en-us/library/system.runtime.compilerservices.internalsvisibletoattribute.aspx