Public Class - “is inaccessible due to its protection level. Only public types can be processed.”

Question

I am doing a test project to learn about XML serialization of an object, and I am getting an odd runtime error:

namespace SerializeTest
{

public partial class F         


        

Answer 1

The Class is public

No it's not. Here's the declaration:

class Conn
{
    ...
}

You haven't specified any access modifiers, so it's defaulting to internal (assuming it's non-nested). Just because it's got a public constructor doesn't make it public. You need to make it public explicitly:

public class Conn
{
    ...
}