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Hi Everyone,

I was using Inprocess session objects, but incase of aspnet process
crashes the session objects were lost as a result I decided to shift to
out of porocess session objects. For this i had to serialize the
objects. While doing that I made the classes serializable whose objects
I store in sessions. However, when I run the application I get the
following error.






Unable to serialize the session state. Please note that non-serializable
objects or MarshalByRef objects are not permitted when session state
mode is 'StateServer' or 'SQLServer'.
Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Unable to serialize the
session state. Please note that non-serializable objects or MarshalByRef
objects are not permitted when session state mode is 'StateServer' or
'SQLServer'.

Source Error:

An unhandled exception was generated during the execution of the current
web request. Information regarding the origin and location of the
exception can be identified using the exception stack trace below.

Stack Trace:


[SerializationException: The type ASP.default_aspx in Assembly h5ahqjmx,
Version=0.0.0.0, Culture=neutral, PublicKeyToken=null is not marked as
serializable.]

System.Runtime.Serialization.FormatterServices.Int ernalGetSerializableMembers(RuntimeType
type, Boolean excludeNonSerializable) +853

System.Runtime.Serialization.FormatterServices.Get SerializableMembers(Type
type, StreamingContext context) +300

System.Runtime.Serialization.Formatters.Binary.Wri teObjectInfo.InitMemberInfo()
+103

System.Runtime.Serialization.Formatters.Binary.Wri teObjectInfo.InitSerialize(Object
obj, ISurrogateSelector surrogateSelector, StreamingContext context,
SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter) +493

System.Runtime.Serialization.Formatters.Binary.Wri teObjectInfo.Serialize(Object
obj, ISurrogateSelector surrogateSelector, StreamingContext context,
SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter) +48

System.Runtime.Serialization.Formatters.Binary.Obj ectWriter.Write(WriteObjectInfo
objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo) +515

System.Runtime.Serialization.Formatters.Binary.Obj ectWriter.Serialize(Object
graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck) +738

System.Runtime.Serialization.Formatters.Binary.Bin aryFormatter.Serialize(Stream
serializationStream, Object graph, Header[] headers, Boolean fCheck) +136

System.Runtime.Serialization.Formatters.Binary.Bin aryFormatter.Serialize(Stream
serializationStream, Object graph) +13
System.Web.Util.AltSerialization.WriteValueToStrea m(Object value,
BinaryWriter writer)

[HttpException (0x80004005): Unable to serialize the session state.
Please note that non-serializable objects or MarshalByRef objects are
not permitted when session state mode is 'StateServer' or 'SQLServer'.]
System.Web.Util.AltSerialization.WriteValueToStrea m(Object value,
BinaryWriter writer)
System.Web.SessionState.SessionDictionary.Serializ e(BinaryWriter writer)

System.Web.SessionState.StateClientManager.Seriali ze(SessionStateItem
item, Stream stream)

System.Web.SessionState.OutOfProcStateClientManage r.System.Web.SessionState.IStateClientManager.Set( String
id, SessionStateItem item, Boolean inStorage)
System.Web.SessionState.SessionStateModule.OnRelea seState(Object
source, EventArgs eventArgs)

System.Web.SyncEventExecutionStep.System.Web.HttpA pplication+IExecutionStep.Execute()
+60
System.Web.HttpApplication.ExecuteStep(IExecutionS tep step, Boolean&
completedSynchronously) +87




I'll appreciate if anybody could help me with this.

Thanks.