[Mono-list] .net remoting problem with object sending

Axel Westerhold ml.awesterhold at dts.de
Wed Feb 28 01:40:03 EST 2007

Hi there,

I am a little guessing here but it sounds as if you would using XML/SOAP/WEB
kind of remoting. In this case make sure each and every variable in your
object/class/struct is defined and initialized.

You can also switch to a binary formater which will solve this issue too but
will break access through proxy.


Am 28.02.2007 4:40 Uhr schrieb "Mirek Binas" unter
<Miroslav.Binas at cnl.tuke.sk>:

> hello
> i am trying to develop application with .net remoting for communication. at
> the moment - everything is well, but when i want to send object, that is not
> one of the default types, the exception raised:
> Unhandled Exception: System.NullReferenceException: Object reference not set
> to an instance of an object
> the object is not null (checked line before call of the remote method). and in
> the declaration of the class it is marked as [Serializable]. don't know, what
> is the problem about. any idea?
> mirek
> p.s.: the complete exception
> Unhandled Exception: System.NullReferenceException: Object reference not set
> to an instance of an object
> Server stack trace:
>   at System.Runtime.Remoting.Channels.SimpleBinder.BindToType (System.String
> assemblyName, System.String typeName) [0x00000]
>   at System.Runtime.Serialization.Formatters.Soap.SoapTypeMapper.GetType
> (System.String xmlName, System.String xmlNamespace) [0x00000]
>   at System.Runtime.Serialization.Formatters.Soap.SoapReader.Deserialize ()
> [0x00000] 
>   at System.Runtime.Serialization.Formatters.Soap.SoapReader.Deserialize
> (System.IO.Stream inStream, ISoapMessage soapMessage) [0x00000]
>   at System.Runtime.Serialization.Formatters.Soap.SoapFormatter.Deserialize
> (System.IO.Stream serializationStream,
> System.Runtime.Remoting.Messaging.HeaderHandler handler) [0x00000]
>   at System.Runtime.Serialization.Formatters.Soap.SoapFormatter.Deserialize
> (System.IO.Stream serializationStream) [0x00000]
>   at System.Runtime.Remoting.Channels.SoapServerFormatterSink.ProcessMessage
> (IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders
> requestHeaders, System.IO.Stream requestStream, IMessage& responseMsg,
> ITransportHeaders& responseHeaders, System.IO.Stream& responseStream)
> [0x00000] 
> Exception rethrown at [0]:
>   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke
> (System.Runtime.Remoting.Proxies.RealProxy rp, IMessage msg, System.Exception&
> exc, System.Object[]& out_args) [0x00000]

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