Record ToString() override don't print non-public properties

[CarlosHAraujo]

Hi everyone,

I was watching this video from Tim Corey, and around minute 37:00 he mention that internal properties are not being returned from the ToString() record override, even if the caller is in the same assembly.

First I thought this could be due to his way of setting up the record, using primary constructor, but then I fully initialized a record and still got the same result.

Probably this is by design, but maybe someone could clarify the rationale behind printing public-only properties, even if the caller fulfill the constraints of internal?

public class Program
{
    public static void Main(string[] args)
    {
        Student john = new("John", "Doe");

        Console.WriteLine($"Hello {john}!"); //Will print only 'Doe'
    }
}

public record Student
{
    public Student(string FirstName, string LastName)
    {
        this.FirstName = FirstName;
        this.LastName = LastName;
    }

    internal string FirstName { get; init; }
    public string LastName { get; init; }
}

[333fred]

even if the caller fulfill the constraints of internal?

This isn't a thing in C#. There isn't a way for ToString() to know whether it's being called from the same assembly or from a different assembly, or even if that should mean anything. For example, it could be called from an internal logging adapter that's then getting sent to a non-internal method. Very intentionally, we do not include internal members.

[CarlosHAraujo]

Makes a lot of sense. Thank you