Protected readonly field vs protected property

Question

I have an abstract class and I\'d like to initialize a readonly field in its protected constructor. I\'d like this readonly field to be available in derived classes.

Answer 1

abstract class Foo
{
    protected readonly int _field;

    protected Foo(int field)
    {
        _field = field;
    }
}

Will be appropriate as you want the derived class to be aware of it. Classes not of type Foo won't have access to _field.