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.Http Exception: 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:
[SerializationEx ception: The type ASP.default_asp x in Assembly h5ahqjmx,
Version=0.0.0.0 , Culture=neutral , PublicKeyToken= null is not marked as
serializable.]

System.Runtime. Serialization.F ormatterService s.InternalGetSe rializableMembe rs(RuntimeType
type, Boolean excludeNonSeria lizable) +853

System.Runtime. Serialization.F ormatterService s.GetSerializab leMembers(Type
type, StreamingContex t context) +300

System.Runtime. Serialization.F ormatters.Binar y.WriteObjectIn fo.InitMemberIn fo()
+103

System.Runtime. Serialization.F ormatters.Binar y.WriteObjectIn fo.InitSerializ e(Object
obj, ISurrogateSelec tor surrogateSelect or, StreamingContex t context,
SerObjectInfoIn it serObjectInfoIn it, IFormatterConve rter converter) +493

System.Runtime. Serialization.F ormatters.Binar y.WriteObjectIn fo.Serialize(Ob ject
obj, ISurrogateSelec tor surrogateSelect or, StreamingContex t context,
SerObjectInfoIn it serObjectInfoIn it, IFormatterConve rter converter) +48

System.Runtime. Serialization.F ormatters.Binar y.ObjectWriter. Write(WriteObje ctInfo
objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo) +515

System.Runtime. Serialization.F ormatters.Binar y.ObjectWriter. Serialize(Objec t
graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck) +738

System.Runtime. Serialization.F ormatters.Binar y.BinaryFormatt er.Serialize(St ream
serializationSt ream, Object graph, Header[] headers, Boolean fCheck) +136

System.Runtime. Serialization.F ormatters.Binar y.BinaryFormatt er.Serialize(St ream
serializationSt ream, Object graph) +13
System.Web.Util .AltSerializati on.WriteValueTo Stream(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 .AltSerializati on.WriteValueTo Stream(Object value,
BinaryWriter writer)
System.Web.Sess ionState.Sessio nDictionary.Ser ialize(BinaryWr iter writer)

System.Web.Sess ionState.StateC lientManager.Se rialize(Session StateItem
item, Stream stream)

System.Web.Sess ionState.OutOfP rocStateClientM anager.System.W eb.SessionState .IStateClientMa nager.Set(Strin g
id, SessionStateIte m item, Boolean inStorage)
System.Web.Sess ionState.Sessio nStateModule.On ReleaseState(Ob ject
source, EventArgs eventArgs)

System.Web.Sync EventExecutionS tep.System.Web. HttpApplication +IExecutionStep .Execute()
+60
System.Web.Http Application.Exe cuteStep(IExecu tionStep step, Boolean&
completedSynchr onously) +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)
--

"Maximus" <[e-mail] > wrote in message
news:Op******** ******@TK2MSFTN GP11.phx.gbl...

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.Http Exception: 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:
[SerializationEx ception: The type ASP.default_asp x in Assembly h5ahqjmx,
Version=0.0.0.0 , Culture=neutral , PublicKeyToken= null is not marked as
serializable.]

System.Runtime. Serialization.F ormatterService s.InternalGetSe rializableMembe rs(RuntimeType
type, Boolean excludeNonSeria lizable) +853

System.Runtime. Serialization.F ormatterService s.GetSerializab leMembers(Type
type, StreamingContex t context) +300

System.Runtime. Serialization.F ormatters.Binar y.WriteObjectIn fo.InitMemberIn fo()
+103

System.Runtime. Serialization.F ormatters.Binar y.WriteObjectIn fo.InitSerializ e(Object
obj, ISurrogateSelec tor surrogateSelect or, StreamingContex t context,
SerObjectInfoIn it serObjectInfoIn it, IFormatterConve rter converter) +493

System.Runtime. Serialization.F ormatters.Binar y.WriteObjectIn fo.Serialize(Ob ject
obj, ISurrogateSelec tor surrogateSelect or, StreamingContex t context,
SerObjectInfoIn it serObjectInfoIn it, IFormatterConve rter converter) +48

System.Runtime. Serialization.F ormatters.Binar y.ObjectWriter. Write(WriteObje ctInfo
objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo) +515

System.Runtime. Serialization.F ormatters.Binar y.ObjectWriter. Serialize(Objec t
graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck) +738

System.Runtime. Serialization.F ormatters.Binar y.BinaryFormatt er.Serialize(St ream
serializationSt ream, Object graph, Header[] headers, Boolean fCheck) +136

System.Runtime. Serialization.F ormatters.Binar y.BinaryFormatt er.Serialize(St ream
serializationSt ream, Object graph) +13
System.Web.Util .AltSerializati on.WriteValueTo Stream(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 .AltSerializati on.WriteValueTo Stream(Object value,
BinaryWriter writer)
System.Web.Sess ionState.Sessio nDictionary.Ser ialize(BinaryWr iter
writer)

System.Web.Sess ionState.StateC lientManager.Se rialize(Session StateItem
item, Stream stream)

System.Web.Sess ionState.OutOfP rocStateClientM anager.System.W eb.SessionState .IStateClientMa nager.Set(Strin g
id, SessionStateIte m item, Boolean inStorage)
System.Web.Sess ionState.Sessio nStateModule.On ReleaseState(Ob ject
source, EventArgs eventArgs)

System.Web.Sync EventExecutionS tep.System.Web. HttpApplication +IExecutionStep .Execute()
+60
System.Web.Http Application.Exe cuteStep(IExecu tionStep step, Boolean&
completedSynchr onously) +87


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

Thanks.

[Maximus]

Chris Jackson wrote:

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_as px
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.