Serialization and inheritance

[Gerben]

Hello,

I'm getting an error when I try to serialize a class in my project. Hope
someone can help me out:

Shared assembly:

[Serializable]
public abstract class Person
{
public int PersonData;
}

Project1

[Serializable]
public class Student : Person
{

}

Person person1 = new Student();

Project2:

I like to serialize person1 (using .net remoting) so I can use that object
in this project. Project2 only knows the person class, but that is enough
since I only need to access PersonData and nothing else. When I try this i'm
getting a serializable exception that says that project2 cannot find
Project1. But I don't want to include project1 or the student class. Is
there a way to solve this / can I tell Student to only serialize the Person
data in some way?

greets,

Gerben.

[Nicholas Paldino [.NET/C# MVP]]

Gerben,

Unfortunately, no, you can not. You need to have a reference to the
assembly that contains the type you are going to serialize so that the
serialization framework will be able to load the appropriate type/field data
for serialization.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Gerben" <pl***********@home.nl> wrote in message
news:dl*********@news1.zwoll1.ov.home.nl...

Hello,

I'm getting an error when I try to serialize a class in my project. Hope
someone can help me out:

Shared assembly:

[Serializable]
public abstract class Person
{
public int PersonData;
}

Project1

[Serializable]
public class Student : Person
{

}

Person person1 = new Student();

Project2:

I like to serialize person1 (using .net remoting) so I can use that object
in this project. Project2 only knows the person class, but that is enough
since I only need to access PersonData and nothing else. When I try this
i'm getting a serializable exception that says that project2 cannot find
Project1. But I don't want to include project1 or the student class. Is
there a way to solve this / can I tell Student to only serialize the
Person data in some way?

greets,

Gerben.

[Jeff Louie]

Gerben... Net1.1 serialization was version specific. Net2.0 suppports
backward compatibility of versioning if you declare the new methods as
optional. I cannot find a reference to this online right now, but this
approach could be helpful.

Regards,
Jeff

*** Sent via Developersdex http://www.developersdex.com ***

[Gerben]

That's a pity. Forces me to move my student class to the shared assembly, it
isn't neat, but it works.

Thanks for your fast reply,

Gerben.

"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard.caspershouse.com> wrote in
message news:%2****************@TK2MSFTNGP14.phx.gbl...

Gerben,

Unfortunately, no, you can not. You need to have a reference to the
assembly that contains the type you are going to serialize so that the
serialization framework will be able to load the appropriate type/field
data for serialization.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Gerben" <pl***********@home.nl> wrote in message
news:dl*********@news1.zwoll1.ov.home.nl...

Hello,

I'm getting an error when I try to serialize a class in my project. Hope
someone can help me out:

Shared assembly:

[Serializable]
public abstract class Person
{
public int PersonData;
}

Project1

[Serializable]
public class Student : Person
{

}

Person person1 = new Student();

Project2:

I like to serialize person1 (using .net remoting) so I can use that
object in this project. Project2 only knows the person class, but that is
enough since I only need to access PersonData and nothing else. When I
try this i'm getting a serializable exception that says that project2
cannot find Project1. But I don't want to include project1 or the student
class. Is there a way to solve this / can I tell Student to only
serialize the Person data in some way?

greets,

Gerben.