Serialization error

[Maximus]

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.InternalGetSerializableMembers(RuntimeType
type, Boolean excludeNonSerializable) +853

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

System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
+103

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

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

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

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

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

System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream
serializationStream, Object graph) +13
System.Web.Util.AltSerialization.WriteValueToStream(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.WriteValueToStream(Object value,
BinaryWriter writer)
System.Web.SessionState.SessionDictionary.Serialize(BinaryWriter writer)

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

System.Web.SessionState.OutOfProcStateClientManager.System.Web.SessionState.IStateClientManager.Set(String
id, SessionStateItem item, Boolean inStorage)
System.Web.SessionState.SessionStateModule.OnReleaseState(Object
source, EventArgs eventArgs)

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




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

Thanks.

 

[Chris Jackson]

The thing you need to do is figure out everything that you are storing in a
Session variable, and determine from this which of these objects is not
serializable or inherit from the MarshallByRef object.

--
Chris Jackson
Software Engineer
Microsoft MVP - Windows Client
Windows XP Associate Expert
--
More people read the newsgroups than read my email.
Reply to the newsgroup for a faster response.
(Control-G using Outlook Express)
--

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.InternalGetSerializableMembers(RuntimeType
type, Boolean excludeNonSerializable) +853

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

System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
+103

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

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

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

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

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

System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream
serializationStream, Object graph) +13
System.Web.Util.AltSerialization.WriteValueToStream(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.WriteValueToStream(Object value,
BinaryWriter writer)
System.Web.SessionState.SessionDictionary.Serialize(BinaryWriter
writer)

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

System.Web.SessionState.OutOfProcStateClientManager.System.Web.SessionState.IStateClientManager.Set(String
id, SessionStateItem item, Boolean inStorage)
System.Web.SessionState.SessionStateModule.OnReleaseState(Object
source, EventArgs eventArgs)

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




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

Thanks.

 

[Maximus]

The thing you need to do is figure out everything that you are storing in a
Session variable, and determine from this which of these objects is not
serializable or inherit from the MarshallByRef object.

Thanks for the reply, I tried that and have marked all the objects which
I could. In most cases it would tell me which object it could not
serialize. But here it is saying it cannot serialize 'ASP.default_aspx
in Assembly 9iq31h5o'.
What I dont understand is why is it trying to serialize the default.aspx
page and also where is this assmebly Assembly 9iq31h5o created.

Any help will be appreciated.