Setting the message of a custom Exception without passing it to the base constructor

Question

I want to make a custom Exception in C#, but in theory I do need to do a little parsing first before I can make a human readable ExceptionMessage.

The problem is that th

Answer 1

I think the problem may be with the Visual Studio debugger. I got the same exact results you got using the debugger, but when I print the message instead:

class CustomException : Exception {
    public CustomException(dynamic json)
        : base("Plep") {
            _Message = json.message;
    }

    public override string Message {
        get { return _Message; }
    }

    private string _Message;
}

class Program {
    static void Main(string[] args) {
        try {
            throw new CustomException(new { message = "Show this message" });
        } catch (Exception ex) {
            Console.WriteLine(ex.Message);
        }
    }
}

I get the expected "Show this message".

If you put a breakpoint where the Exception is caught, the debugger does show you the correct message.