Getting an exception when trying to set up a callback in remoting

[Guest]

What does this exception message mean?

Type System.DelegateSerializationHolder and the types derived from it (such
as System.DelegateSerializationHolder) are not permitted to be deserialized
at this security level.

This is being done after a connection has been made to a remote object and
I'm trying to setup a callback to the client.

TIA - Jeff.

 

[Stoitcho Goutsev \(100\)]

Jeff,

Since .NET 1.1 there is more strict security demands when serializing in
remoting scenarios. Some time ago I gave advice on this topic. You can see
the thread here

http://groups.google.ca/group/micro...curity+Stoitcho&rnum=1&hl=en#c6feb58462b45bb7
(look out for line breaks).

Read the thread there I give a code how to work this out.

 

[Guest]

Stoitcho,
Either I'm missing something or the code isn't complete. There are a couple
of things it's looking for that can't be found. There's a class called
SubscriberInfo that it can't find the constructor for with 3 elements. I
also had to create a reference to it.

Am I missing something or

 

[Stoitcho Goutsev \(100\)]

Jeff,

SubscriberInfo is a class form the original poster project
What you need is the info form my first message in the thread. I didn't want
to repost it, but here it is

"Since .NET v1.1 Microsoft demand more security restrictions on remoting
serialization. As a result in .NET v1.0 it is was possible to create a
channel as
ChannelServices.RegisterChannel(new TcpChannel(XXX));
However, with v1.1 we need to do more work to relax those restrictions and
make handling events possible.

On the server site you relax those restrictions as follows


BinaryClientFormatterSinkProvider clientProvider = null;
BinaryServerFormatterSinkProvider serverProvider =
new BinaryServerFormatterSinkProvider();


serverProvider.TypeFilterLevel =
System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;


IDictionary props = new Hashtable();
props["port"] = 4000;
props["typeFilterLevel"] = TypeFilterLevel.Full;
TcpChannel chan = new TcpChannel(props,clientProvider,serverProvider);


ChannelServices.RegisterChannel(chan);


On the client site


BinaryClientFormatterSinkProvider clientProvider = new
BinaryClientFormatterSinkProvider();
BinaryServerFormatterSinkProvider serverProvider = new
BinaryServerFormatterSinkProvider();
serverProvider.TypeFilterLevel =
System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;


IDictionary props = new Hashtable();
props["port"] = 0;
props["typeFilterLevel"] = TypeFilterLevel.Full;
TcpChannel chan = new TcpChannel(
props,clientProvider,serverProvider);


ChannelServices.RegisterChannel(chan); "

 

[Guest]

Thanks for the help. I'll give it a try.

Jeff.

Jeff,

SubscriberInfo is a class form the original poster project
What you need is the info form my first message in the thread. I didn't want
to repost it, but here it is

"Since .NET v1.1 Microsoft demand more security restrictions on remoting
serialization. As a result in .NET v1.0 it is was possible to create a
channel as
ChannelServices.RegisterChannel(new TcpChannel(XXX));
However, with v1.1 we need to do more work to relax those restrictions and
make handling events possible.

On the server site you relax those restrictions as follows


BinaryClientFormatterSinkProvider clientProvider = null;
BinaryServerFormatterSinkProvider serverProvider =
new BinaryServerFormatterSinkProvider();


serverProvider.TypeFilterLevel =
System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;


IDictionary props = new Hashtable();
props["port"] = 4000;
props["typeFilterLevel"] = TypeFilterLevel.Full;
TcpChannel chan = new TcpChannel(props,clientProvider,serverProvider);


ChannelServices.RegisterChannel(chan);


On the client site


BinaryClientFormatterSinkProvider clientProvider = new
BinaryClientFormatterSinkProvider();
BinaryServerFormatterSinkProvider serverProvider = new
BinaryServerFormatterSinkProvider();
serverProvider.TypeFilterLevel =
System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;


IDictionary props = new Hashtable();
props["port"] = 0;
props["typeFilterLevel"] = TypeFilterLevel.Full;
TcpChannel chan = new TcpChannel(
props,clientProvider,serverProvider);


ChannelServices.RegisterChannel(chan); "




--

Stoitcho Goutsev (100)

Stoitcho,
Either I'm missing something or the code isn't complete. There are a
couple
of things it's looking for that can't be found. There's a class called
SubscriberInfo that it can't find the constructor for with 3 elements. I
also had to create a reference to it.

Am I missing something or