Calling Partial Method C# [duplicate]

Question

I have question about c# partial method. How to use(call from main) partial methods if they are private by default?

using System;
namespace SecondProject
{
    internal class Program
    {
        partial class Person
        {   
            partial void foo();
        }

        partial class Person
        {
            partial void foo() => Console.WriteLine("foo");
        }

        static void Main(string[] args)
        {
            Person person = new Person();
            person.foo(); // person.foo() is inaccessible due to its protection level
        }
    }
}

Answer 1

Partial classes and methods are basically there to spread your code over multiple files, for example because one part of the code is generated (and changes to it will be overwritten).

It has nothing to do with accessibility (private/protected/internal/public), and after compilation there's no difference between a partial or non-partial method.