当我在实体上下文中调用SaveChanges（）方法时，我收到以下错误：
文化'en'是一种中性文化。它不能用于格式化和解析，因此不能设置为线程的当前文化。
我的浏览器文化设置为en-us，我的操作系统也是如此（在Windows 7，Vista和Server 2003上测试过）。
使用（SubscriptionEntity context = new SubscriptionEntity（）） {
User user = new User();
user.First_Name = firstName;
user.Last_Name = lastName;
user.Company = company;
user.Job_Title = jobTitle;
user.Email_Address = email;
user.Address1 = address1;
user.Date_Created = DateTime.Now;
User_Mail_Preference_Language_Format user_mail_format_language = new User_Mail_Preference_Language_Format();
user_mail_format_language.Mail_Preferences_Format = context.Mail_Preferences_Format.FirstOrDefault(p => p.Mail_Preferences_Format_ID == mailFormat);
user_mail_format_language.Mail_Preferences_Language = context.Mail_Preferences_Language.FirstOrDefault(t => t.Mail_Preferences_Language_ID == languagePreference);
user.User_Mail_Preference_Language_Format.Add(user_mail_format_language);
foreach (int i in aoi)
{
User_Area_of_Interest user_aoi = new User_Area_of_Interest();
user_aoi.Area_of_Interest = context.Area_of_Interest.First(p => p.Area_of_Interest_ID == i);
user.User_Area_of_Interest.Add(user_aoi);
}
context.AddToUser(user);
context.SaveChanges();
错误：
[NotSupportedException：Culture'en'是一种中立文化。它不能用于格式化和解析，因此不能设置为线程的当前文化。]
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