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I’m trying to create a simple Guestbook web service using ASP.NET WebServices.
When trying to serialize a list of objects, I get the following exception:
System.InvalidOperationException: The type of the argument object 'GuestBookService.GuestBookEntry' is not primitive.
How can I fix this error?
is GuestBookEntry marked as serializable?
http://ondotnet.com/pub/a/dotnet/2002/08/26/serialization.html