How do private properties work in C#?

Question

C++ / C#

There is this code:

class SomeClass
        {
            private bool BoolTest = true;

            public void SomeFunc()
            {
                SomeClass sc = new SomeClass();
                sc.BoolTest = false; // почему-то доступное свойство
            }
        }

        class AccessTester
        {
            public void TestPrivate()
            {
                SomeClass sc = new SomeClass();
                //sc.boolTest = false; конечно недоступное свойство
            }
        }

Please explain why a private property of the sc object is available in SomeFunc.

Answer 1

The property can also be available for nested classes of the same type.
Tyts

Nested types in the same body can also access those private members.