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When I store dataview in viewstate,.net shows the error “Dataview is not marked as serializable in system.data but when I store it in session, then it works perfectly?
What is the reason behind it?? Which are the other objects that are not marked as
“serializable ” ?
It means that the object you want to store (DataView) isn’t marked with a SerializableAttribute.
Now, the reason you’re getting this error with ViewState and not with Session is because the ViewState is always serialized but that’s not necessarily true of Session. In-Process sessions are stored in the server’s memory and require no serialization. SQLServer sessions have to be serialized for storage in a database.
So, anytime you want to store an object in the ViewState (or a serialized Session), it must be marked with a SerializableAttribute.