Accessing a member on Form may cause a runtime exception because it is a field of a marshal-by-reference class

Question

Accessing a member on Form may cause a runtime exception because it is a field of a marshal-by-reference class

I know what this warnin

Answer 1

Or you can write:

var obj = new Remotable();

Console.WriteLine(((int) obj.field).ToString());     // No warning

Here you take your own responsibility for that cast (unboxing).