Есть silverlight приложение, которое получает доступ к данным базы через WCF-сервис.
Для доступа к данным в WCF-сервисе используется Entity Framework.
Код службы (возвращает список работников):
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[ServiceContract(Namespace = "")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class EmployeesService
{
[OperationContract]
public IQueryable<PersonalInfo> GetData()
{
var test = new EmployeesEntities();
return test.PersonalInfoes;
}
}
Вызов службы на клиенте:
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var proxy = new EmployeesServiceClient();
proxy.GetDataCompleted += new EventHandler<GetDataCompletedEventArgs>(proxy_GetDataCompleted);
proxy.GetDataAsync(1);
При выполнении метода GetData вылетает сообщение об ошибке: "The remote server returned an error: NotFound."
Трассировка WCF-сервиса расшифровала эту ошибку так:
"Type 'System.Data.Objects.ObjectSet`1[TestEmployeesService.Models.PersonalInfo]' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute. If the type is a collection, consider marking it with the CollectionDataContractAttribute. See the Microsoft .NET Framework documentation for other supported types."
Но в классе метаданных, к-й был сгенерирован при создании модели все атрибуты и так проставлены:
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[EdmEntityTypeAttribute(NamespaceName="EmployeesModel", Name="PersonalInfo")]
[Serializable()]
[DataContractAttribute(IsReference=true)]
public partial class PersonalInfo : EntityObject
{
#region Factory Method
/// <summary>
/// Create a new PersonalInfo object.
/// </summary>
/// <param name="employeeID">Initial value of the EmployeeID property.</param>
/// <param name="firstName">Initial value of the FirstName property.</param>
/// <param name="lastName">Initial value of the LastName property.</param>
/// <param name="birthDate">Initial value of the BirthDate property.</param>
/// <param name="familyStatus">Initial value of the FamilyStatus property.</param>
/// <param name="position">Initial value of the Position property.</param>
public static PersonalInfo CreatePersonalInfo(global::System.Int32 employeeID, global::System.String firstName, global::System.String lastName, global::System.DateTime birthDate, global::System.Int32 familyStatus, global::System.Int32 position)
{
PersonalInfo personalInfo = new PersonalInfo();
personalInfo.EmployeeID = employeeID;
personalInfo.FirstName = firstName;
personalInfo.LastName = lastName;
personalInfo.BirthDate = birthDate;
personalInfo.FamilyStatus = familyStatus;
personalInfo.Position = position;
return personalInfo;
}
#endregion
#region Primitive Properties
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[EdmScalarPropertyAttribute(EntityKeyProperty=true, IsNullable=false)]
[DataMemberAttribute()]
public global::System.Int32 EmployeeID
{
get
{
return _EmployeeID;
}
set
{
if (_EmployeeID != value)
{
OnEmployeeIDChanging(value);
ReportPropertyChanging("EmployeeID");
_EmployeeID = StructuralObject.SetValidValue(value);
ReportPropertyChanged("EmployeeID");
OnEmployeeIDChanged();
}
}
}
private global::System.Int32 _EmployeeID;
partial void OnEmployeeIDChanging(global::System.Int32 value);
partial void OnEmployeeIDChanged();
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=false)]
[DataMemberAttribute()]
public global::System.String FirstName
{
get
{
return _FirstName;
}
set
{
OnFirstNameChanging(value);
ReportPropertyChanging("FirstName");
_FirstName = StructuralObject.SetValidValue(value, false);
ReportPropertyChanged("FirstName");
OnFirstNameChanged();
}
}
private global::System.String _FirstName;
partial void OnFirstNameChanging(global::System.String value);
partial void OnFirstNameChanged();
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=false)]
[DataMemberAttribute()]
public global::System.String LastName
{
get
{
return _LastName;
}
set
{
OnLastNameChanging(value);
ReportPropertyChanging("LastName");
_LastName = StructuralObject.SetValidValue(value, false);
ReportPropertyChanged("LastName");
OnLastNameChanged();
}
}
private global::System.String _LastName;
partial void OnLastNameChanging(global::System.String value);
partial void OnLastNameChanged();
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=false)]
[DataMemberAttribute()]
public global::System.DateTime BirthDate
{
get
{
return _BirthDate;
}
set
{
OnBirthDateChanging(value);
ReportPropertyChanging("BirthDate");
_BirthDate = StructuralObject.SetValidValue(value);
ReportPropertyChanged("BirthDate");
OnBirthDateChanged();
}
}
private global::System.DateTime _BirthDate;
partial void OnBirthDateChanging(global::System.DateTime value);
partial void OnBirthDateChanged();
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=false)]
[DataMemberAttribute()]
public global::System.Int32 FamilyStatus
{
get
{
return _FamilyStatus;
}
set
{
OnFamilyStatusChanging(value);
ReportPropertyChanging("FamilyStatus");
_FamilyStatus = StructuralObject.SetValidValue(value);
ReportPropertyChanged("FamilyStatus");
OnFamilyStatusChanged();
}
}
private global::System.Int32 _FamilyStatus;
partial void OnFamilyStatusChanging(global::System.Int32 value);
partial void OnFamilyStatusChanged();
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=false)]
[DataMemberAttribute()]
public global::System.Int32 Position
{
get
{
return _Position;
}
set
{
OnPositionChanging(value);
ReportPropertyChanging("Position");
_Position = StructuralObject.SetValidValue(value);
ReportPropertyChanged("Position");
OnPositionChanged();
}
}
private global::System.Int32 _Position;
partial void OnPositionChanging(global::System.Int32 value);
partial void OnPositionChanged();
#region Navigation Properties
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[XmlIgnoreAttribute()]
[SoapIgnoreAttribute()]
[DataMemberAttribute()]
[EdmRelationshipNavigationPropertyAttribute("EmployeesModel", "FK_PersonalInfo_FamilyStatus", "FamilyStatus")]
public FamilyStatu FamilyStatu
{
get
{
return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<FamilyStatu>("EmployeesModel.FK_PersonalInfo_FamilyStatus", "FamilyStatus").Value;
}
set
{
((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<FamilyStatu>("EmployeesModel.FK_PersonalInfo_FamilyStatus", "FamilyStatus").Value = value;
}
}
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[BrowsableAttribute(false)]
[DataMemberAttribute()]
public EntityReference<FamilyStatu> FamilyStatuReference
{
get
{
return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<FamilyStatu>("EmployeesModel.FK_PersonalInfo_FamilyStatus", "FamilyStatus");
}
set
{
if ((value != null))
{
((IEntityWithRelationships)this).RelationshipManager.InitializeRelatedReference<FamilyStatu>("EmployeesModel.FK_PersonalInfo_FamilyStatus", "FamilyStatus", value);
}
}
}
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[XmlIgnoreAttribute()]
[SoapIgnoreAttribute()]
[DataMemberAttribute()]
[EdmRelationshipNavigationPropertyAttribute("EmployeesModel", "FK_PersonalInfo_Position", "Position")]
public Position Position1
{
get
{
return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<Position>("EmployeesModel.FK_PersonalInfo_Position", "Position").Value;
}
set
{
((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<Position>("EmployeesModel.FK_PersonalInfo_Position", "Position").Value = value;
}
}
/// <summary>
/// No Metadata Documentation available.
/// </summary>
[BrowsableAttribute(false)]
[DataMemberAttribute()]
public EntityReference<Position> Position1Reference
{
get
{
return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<Position>("EmployeesModel.FK_PersonalInfo_Position", "Position");
}
set
{
if ((value != null))
{
((IEntityWithRelationships)this).RelationshipManager.InitializeRelatedReference<Position>("EmployeesModel.FK_PersonalInfo_Position", "Position", value);
}
}
}
#endregion
}
В чем моя ошибка?
