Исключение безопасности сериализации Wp7

Question

Прежде всего, описание может быть немного длинным с большим количеством кода, но я не буду предоставлять всю информацию, которую я могу. Я работаю с tombstoning для моего приложения, и я хотел бы сохранить упорядоченный класс:

[DataContract] 
    private class Tombstone 
    { 
     [DataMember] 
     public UserDetails UserProfile { get; set; } 
    } 


    // Create instance of the tombstone class 
    private Tombstone _tombstone; 
    public ProfileSetup() 
    { 
     _tombstone = new Tombstone(); 
    } 


    //Add data to userProfile 
    void UserInformationAccess_OnGetUserDetailsComplete(GetUserDetailsResponse response) 
    { 
     _tombstone.UserProfile = response.userDetails; 
    } 

И у меня есть исключение в на навигацию от ... именно здесь:

protected override void OnNavigatedFrom(NavigationEventArgs e) 
    { 
     if (_tombstone != null) 
      this.SaveState("tombstone", _tombstone); 
    } 

//The state manager class 
public static class StateManager 
{ 
    /// <summary> 
    /// Saves a key-value pair into the state object 
    /// </summary> 
    /// <param name="phoneApplicationPage">The phone application page.</param> 
    /// <param name="key">The key.</param> 
    /// <param name="value">The value.</param> 
    public static void SaveState(this PhoneApplicationPage phoneApplicationPage, string key, object value) 
    { 
     if (phoneApplicationPage.State.ContainsKey(key)) 
     { 
      phoneApplicationPage.State.Remove(key); 
     } 

     phoneApplicationPage.State.Add(key, value); 
    } 
} 

а теперь Держитесь исключением пришедшее:

 
"SecurityException" 

    at System.Runtime.Serialization.DataContract.DataContractCriticalHelper.CreateDataContract(Int32 id, RuntimeTypeHandle typeHandle, Type type) 
    at System.Runtime.Serialization.DataContract.DataContractCriticalHelper.GetDataContractSkipValidation(Int32 id, RuntimeTypeHandle typeHandle, Type type) 
    at System.Runtime.Serialization.DataContract.GetDataContractSkipValidation(Int32 id, RuntimeTypeHandle typeHandle, Type type) 
    at System.Runtime.Serialization.DataContract.GetDataContract(RuntimeTypeHandle typeHandle, Type type, SerializationMode mode) 
    at System.Runtime.Serialization.XmlObjectSerializerContext.GetDataContract(RuntimeTypeHandle typeHandle, Type type) 
    at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithXsiType(XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle objectTypeHandle, Type objectType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle, Type declaredType) 
    at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerialize(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle) 
    at System.Runtime.Serialization.XmlObjectSerializerWriteContext.InternalSerializeReference(XmlWriterDelegator xmlWriter, Object obj, Boolean isDeclaredType, Boolean writeXsiType, Int32 declaredTypeID, RuntimeTypeHandle declaredTypeHandle) 
    at System.Reflection.RuntimeMethodInfo.InternalInvoke(RuntimeMethodInfo rtmi, Object obj, BindingFlags invokeAttr, Binder binder, Object parameters, CultureInfo culture, Boolean isBinderDefault, Assembly caller, Boolean verifyAccess, StackCrawlMark& stackMark) 
    at System.Reflection.RuntimeMethodInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, StackCrawlMark& stackMark) 
    at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters) 
    at System.Runtime.Serialization.XmlFormatWriter.InternalSerialize(MethodInfo methodInfo, Object memberValue, Type memberType, Boolean writeXsiType, XmlObjectSerializerWriteContext context, XmlWriterDelegator xmlWriter) 
    at System.Runtime.Serialization.XmlFormatWriter.WriteValue(Type memberType, Object memberValue, Boolean writeXsiType, XmlObjectSerializerWriteContext context, XmlWriterDelegator xmlWriter) 
    at System.Runtime.Serialization.XmlFormatWriter.WriteMember(SerializingObject serObj, Int32 memberIndex, ClassDataContract derivedMostClassContract) 
    at System.Runtime.Serialization.XmlFormatWriter.WriteClass(CallStackElement`1 callStackElement) 
    at System.Runtime.Serialization.XmlFormatWriter.Serialize(XmlObjectSerializerWriteContext context) 
    at System.Runtime.Serialization.XmlFormatWriter.InitializeCallStack(XmlWriterDelegator xmlWriterDel, Object obj, XmlObjectSerializerWriteContext writeContext, DataContract contract) 
    at System.Runtime.Serialization.CollectionDataContract.WriteXmlValue(XmlWriterDelegator xmlWriter, Object obj, XmlObjectSerializerWriteContext context) 
    at System.Runtime.Serialization.XmlObjectSerializerWriteContext.WriteDataContractValue(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle) 
    at System.Runtime.Serialization.XmlObjectSerializerWriteContext.SerializeWithoutXsiType(DataContract dataContract, XmlWriterDelegator xmlWriter, Object obj, RuntimeTypeHandle declaredTypeHandle) 
    at System.Runtime.Serialization.DataContractSerializer.InternalWriteObjectContent(XmlWriterDelegator writer, Object graph) 
    at System.Runtime.Serialization.DataContractSerializer.InternalWriteObject(XmlWriterDelegator writer, Object graph) 
    at System.Runtime.Serialization.XmlObjectSerializer.WriteObjectHandleExceptions(XmlWriterDelegator writer, Object graph) 
    at System.Runtime.Serialization.XmlObjectSerializer.WriteObject(XmlDictionaryWriter writer, Object graph) 
    at System.Runtime.Serialization.XmlObjectSerializer.WriteObject(Stream stream, Object graph) 
    at Microsoft.Phone.Shell.StreamPersister.Serialize(IDictionary`2 dictionary, IEnumerable`1 knownTypes) 
    at Microsoft.Phone.Shell.StreamPersister.Save(ShellPage shellPage, String key, IDictionary`2 dictionary, IEnumerable`1 knownTypes) 
    at Microsoft.Phone.Controls.PhoneApplicationPage.InternalOnNavigatedFrom(NavigationEventArgs e) 
    at System.Windows.Navigation.NavigationService.RaiseNavigated(Object content, Uri uri, NavigationMode mode, Boolean isNavigationInitiator, PhoneApplicationPage existingContentPage, PhoneApplicationPage newContentPage) 
    at System.Windows.Navigation.NavigationService.Journal_NavigatedExternally(Object sender, JournalEventArgs args) 
    at System.Windows.Navigation.Journal.OnNavigatedExternally(String name, Uri uri, NavigationMode mode) 
    at System.Windows.Navigation.Journal.ShellPage_NavigatedAway(Object sender, NavigateAwayEventArgs args) 
    at Microsoft.Phone.Shell.Interop.ShellPageCallback.FireOnNavigateAway(IntPtr thisPage, Direction direction, IntPtr pageNext) 

Я исследовал много связанных с этим, и я кулачком из пустого :(любой помощи приветствуется

.

[редактирует]

Швы, как проблема заключалась в том, что класс надгробие частная доступность, я изменил это ... но, чем я получил следующее исключение:

Тип «Newtonsoft.Json.Linq .JObject 'с именем контракта данных' ArrayOfKeyValueOfstringJTokeneJCYCtcq: http: //schemas.microsoft.com/2003/10/Serialization/Arrays ' не ожидается. Добавьте любые типы, не известные статически в список известных типов - например, с помощью атрибута KnownTypeAttribute или путем добавления их в список известных типов, переданных DataContractSerializer.

также здесь есть класс UserDetails

[KnownType(typeof(Phone[]))] 
[KnownType(typeof(UserInterest<InterestCategory?, object>))] 
[KnownType(typeof(UserInterest<InterestCategory?, object>[]))] 


    [DataContract] 
    public class UserDetails 
    { 
     /// <summary> 
     /// Specifies an identifier of user 
     /// </summary> 
     /// 
     [DataMember] 
     public long userId { get; set; } 

     /// <summary> 
     /// Specifies a nick of user 
     /// </summary> 
     /// 
     [DataMember] 
     public string nick { get; set; } 

     /// <summary> 
     /// Specifies a full name of user. The field is absent if it has null value 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 

     [DataMember] 
     public string fullName { get; set; } 

     /// <summary> 
     /// Specifies a gender of user. The field is absent if it has null value 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [JsonConverter(typeof(EnumAttributeConverter<Gender>))] 
     [DataMember] 
     public Gender? gender { get; set; } 

     /// <summary> 
     /// Specifies a birthday of user as string in dd.MM.yyyy format. 
     /// The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public string birthday { get; set; } 

     /// <summary> 
     /// Specifies an e-mail of user. The field is absent if it has null value 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public string email { get; set; } 

     /// <summary> 
     /// Specifies a website of user. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public string website { get; set; } 

     /// <summary> 
     /// Specifies a general information about user. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public string about { get; set; } 

     /// <summary> 
     /// Specifies a place of birth for user. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public Address<Country?>? homeAddress { get; set; } 

     /// <summary> 
     /// Specifies a place of residence for user. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public Address<Country?>? currentAddress { get; set; } 

     /// <summary> 
     /// Specifies a list of user's phones. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember]  
     public Phone[] phones { get; set; } 

     /// <summary> 
     /// Specifies an URI of avatar of profile. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public string avatar { get; set; } 

     /// <summary> 
     /// Specifies a job. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public string job { get; set; } 

     /// <summary> 
     /// Specifies a mood status of user as a color.The field is absent in read commands if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public int? mood { get; set; } 

     /// <summary> 
     /// Specifies a relationship status of user.The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public RelationshipStatus? relationshipStatus { get; set; } 

     /// <summary> 
     /// Defines a discovery purpose specified by user.The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public DiscoveryPurpose? discoveryPurpose { get; set; } 

     /// <summary> 
     /// Specifies a list of user interests. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public UserInterest<InterestCategory?, object>[] interests { get; set; } 

     /// <summary> 
     /// Specifies a status of user. The field is absent if it has null value. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public string status { get; set; } 

     /// <summary> 
     /// Specifies an availability status of user. 
     /// </summary> 
     [JsonConverter(typeof(EnumAttributeConverter<AvailabilityStatus>))] 
     [DataMember] 
     public AvailabilityStatus availabilityStatus { get; set; } 

     /// <summary> 
     /// Specifies a location of user. The field is absent if location is undefined. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public Location location { get; set; } 

     /// <summary> 
     /// Defines if the given user and the requestor interacted previously. 
     /// </summary> 
     [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] 
     [DataMember] 
     public bool interacted { get; set; } 

     /// <summary> 
     /// Defines the status of pending friendship request if it exists. 
     /// Equals NONE if there is no pending friendship request. 
     /// Equals PENDING_IN if the given user sent friendship 
     /// request to the user (requestor) who requests extended 
     /// information. 
     /// Equals PENDING_OUT if the requestor sent friendship 
     /// request to the given request. 
     /// </summary> 
     [JsonConverter(typeof(EnumAttributeConverter<FriendshipRequestStatus>))] 
     [DataMember] 
     public FriendshipRequestStatus friendshipRequestStatus { get; set; } 

     /// <summary> 
     /// Defines if the given user was ignored by the requestor. 
     /// </summary> 
     /// 
     [DataMember] 
     public bool ignored { get; set; } 
    } 

Answer 1

Исключение указывает на то, что один из типов ссылочных не доступен/виден в контексте сериализатором ... Проблема заключается в том, что вы определили свой класс как частные:

«частный класс Tombstone»

Это означает, что он виден только классу, в котором он определен.
Вам необходимо сделать этот класс общедоступным.

Answer 2

Проблема с способностью DataContractSerializer сериализации вашего UserDetails объекта.

Метод словаря State страницы сериализует объекты с помощью DataContractSerializer.

Вы показали, что вы отметили класс Tombstone с атрибутами сериализации DataContract, но как насчет UserDetails?

К счастью, вы можете отладить эту проблему, пытаясь сериализовать и десериализовать объекты самостоятельно.
Вы также можете обнаружить, что вы получаете лучшую производительность с помощью другого сериализатора (json.net хорош и прост в использовании), поскольку DataContractSerializer, как известно, медленный.