C# Serializing a Collection of Objects

Question

I am working on a ASP.NET application that has a class that inherits a List of a Custom Object.

public class UserRoleList : List {
    publ         


        

Answer 1

You need to do the following

1. Ensure UserRoleList is serializable
2. Ensure UserRoleBO is serializable
3. Ensure the type of all fields inside UserRoleBO are serializable (this is recursive)

The easiest way to do this is to add the [Serializable] attribute to the classes. This will work in most cases.

On a different note, deriving from List is usually speaking a bad idea. The class is not meant to be derived from and any attempt to specialize it's behavior can be thwarted in sceanarios where the derived class is used from a List reference. Can you explain why you want to derive in this way? There is likely a more robust solution.