FileVersion 2.0.7.122 Adapter SQL Server 2005

Hello,

when trying to serialize classes based on LLBL, I am having the following error (occured in one of my LLBL generated classes):

"Cannot add the same member twice to a SerializationInfo object."

below my class that I want to be able to serialize:

    public interface IMyUser
    {
        string AuthenticationType { get; }
        decimal DocIId { get; }
        EntityCollection<TEditeursEntity> Editeurs { get; }
        EntityCollection<TpInternalFunctionEntity> InternalFunction { get; }
        bool IsAuthenticated { get; }
        string Name { get; }
        string Roles { get; }
        string WorkingEditeurTxt { get; }

        EntityCollection<TEditeursEntity> SelectedEditeurs { get; set; }
        TEditeursEntity WorkingEditeur { get; set; }
    }

below the method to serialize/deserialize:

        private void BinarySerialize(IMyUser toSerialize)
        {
            using (FileStream str = File.Create("user.bin"))
            {
                BinaryFormatter bf = new BinaryFormatter();
                bf.Serialize(str, toSerialize);
            }
        }

        private void BinaryDeserialize()
        {
            IMyUser toDeserialize = null;

            using (FileStream str = File.OpenRead("user.bin"))
            {
                BinaryFormatter bf = new BinaryFormatter();
                toDeserialize = (IMyUser)bf.Deserialize(str);
            }
        }

Below is my stackTrace:

System.Runtime.Serialization.SerializationException was unhandled
  Message="Cannot add the same member twice to a SerializationInfo object."
  Source="mscorlib"
  StackTrace:
       at System.Runtime.Serialization.SerializationInfo.AddValue(String name, Object value, Type type)
       at System.Runtime.Serialization.SerializationInfo.AddValue(String name, Object value)
       at Aldabra.Magellan.DAL.EntityClasses.TDocumentsEntity.GetObjectData(SerializationInfo info, StreamingContext context) in D:\Aldabra.com\DAL\LLBL\DatabaseGeneric\EntityClasses\TDocumentsEntity.cs:line 358
       at Aldabra.Magellan.DAL.EntityClasses.TContactsEntity.GetObjectData(SerializationInfo info, StreamingContext context) in D:\Aldabra.com\DAL\LLBL\DatabaseGeneric\EntityClasses\TContactsEntity.cs:line 587
       at Aldabra.Magellan.DAL.EntityClasses.TPersonnesEntity.GetObjectData(SerializationInfo info, StreamingContext context) in D:\Aldabra.com\DAL\LLBL\DatabaseGeneric\EntityClasses\TPersonnesEntity.cs:line 392
       at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)
       at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)
       at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo)
       at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
       at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
       at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
       at Serialize.Form1.BinarySerialize(IMagellanUser toSerialize) in E:\Documents\Visual Studio 2005\Projects\Tests\Serialize\Serialize\Form1.cs:line 23
       at Serialize.Form1.button2_Click(Object sender, EventArgs e) in E:\Documents\Visual Studio 2005\Projects\Tests\Serialize\Serialize\Form1.cs:line 50
       at System.Windows.Forms.Control.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
       at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ButtonBase.WndProc(Message& m)
       at System.Windows.Forms.Button.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods. IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at Serialize.Program.Main() in E:\Documents\Visual Studio 2005\Projects\Tests\Serialize\Serialize\Program.cs:line 17
       at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()

btw, I am having the folowing hierarchy: TDocuments<-TContacts<-TPersonnes

Thanks,

You specify an interface, but you want to serialize a class. Did you try with passing the entity type directly? How did you implement the interface?