錯誤調用的SaveChanges（）在實體Framework 3.5 SP1中

Question

我收到以下錯誤，當我調用的SaveChanges我的實體上下文（）方法時：

文化「恩」是一箇中立的文化。它不能用於格式和解析，因此不能被設置爲線程的當前文化。

我的瀏覽器文化設置爲en-us，我的操作系統也一樣（在windows 7，vista和server 2003上測試過）。

使用（SubscriptionEntity上下文=新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(); 

錯誤： [NotSupportedException異常：文化成 'en' 是中性培養。它不能用於格式和解析，因此不能被設置爲線程的當前文化。] System.Globalization.CultureInfo.CheckNeutral（CultureInfo culture）+7484386 System.Globalization.CultureInfo.get_NumberFormat（）+13 System.Globalization .NumberFormatInfo.GetInstance（的IFormatProvider formatProvider）89 System.Data.EntityUtil.ConvertCardinalityToString（可空1 cardinality) +90 System.Data.EntityUtil.UpdateRelationshipCardinalityConstraintViolation(String relationshipSetName, Int32 minimumCount, Nullable 1 maximumCount，字符串entitySetName，的Int32 actualCount，字符串otherEndPluralName，IEntityStateEntry stateEntry）26 System.Data.Mapping.Update.Internal.RelationshipConstraintValidator .ValidateConstraints（）+417 System.Data.Mapping.Update.Internal.UpdateTranslator.ProduceCommands（）+59 System.Data.Mapping.Update.Internal.UpdateTranslator.Update（IEntityStateMana GER stateManager，IEntityAdapter適配器）210 System.Data.EntityClient.EntityAdapter.Update（IEntityStateManager entityCache）117個 System.Data.Objects.ObjectContext.SaveChanges（布爾acceptChangesDuringSave）453個 System.Data.Objects.ObjectContext.SaveChanges （）+9 Osler.PublicWeb.Subscription.Business.Subscription.AddSubscription（String firstName，String lastName，String company，String jobTitle，String email，String address1，String address2，String city，String provinceState，String postalCode，String country， Int32 languagePreference，Int32 mailFormat，List`1 aoi）in D：\ DevProjects \ OslerDOTcom \ Main \ Source \ Code \ Osler.com \ Osler.PublicWeb.Subscription.Business \ Subscription.cs：150 osler_ContentTemplates_CT_EmailSubscriptions.SaveSubscriptionInfo（）in c ：\的Inetpub \ wwwroot的\ dev.osler.com \奧斯勒\ ContentTemplates \ CT_EmailSubscriptions.a scx.cs：338 osler_ContentTemplates_CT_EmailSubscriptions.Button1_Click（對象發件人，EventArgs e）如C：\的Inetpub \ wwwroot的\ dev.osler.com \奧斯勒\ ContentTemplates \ CT_EmailSubscriptions.ascx.cs：38個 System.Web.UI.HtmlControls。 HtmlButton.OnServerClick（EventArgs e）+111 System.Web.UI.HtmlControls.HtmlButton.RaisePostBackEvent（String eventArgument）+109 System.Web.UI.HtmlControls.HtmlButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent（String eventArgument ）10 System.Web.UI.Page.RaisePostBackEvent（IPostBackEventHandler sourceControl，字符串eventArgument）13 System.Web.UI.Page.RaisePostBackEvent（NameValueCollection中POSTDATA）175 System.Web.UI.Page.ProcessRequestMain（布爾includeStagesBeforeAsyncPoint，布爾includeStagesAfterAsyncPoint）+1565

Answer 1

請參閱Bug in Entity Framework。實體框架將您的文化視爲「en」（這是文化中立）而不是「en-us」