using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Console.WriteLine(nameof(@Test.Inner.Value));

        Console.WriteLine(FullName.Of(nameof(@Test.Inner.Value)));

        foreach (var v in nameof(@Test.Inner.Value))

            Console.WriteLine(v);

    }

}

​

public class Test {

    public class Inner { 

        public int Value { get; set; }

    }

}

​

public static class FullName {

    public static string Of(string _, [System.Runtime.CompilerServices.CallerArgumentExpression("_")] string fullTypeName = "") {

        Console.WriteLine("fullTypeName " + fullTypeName);

        if (fullTypeName.StartsWith("nameof(@") && fullTypeName.EndsWith(")")) {

            return fullTypeName[8..^1];

        }

        return fullTypeName;

    }

}