Access Modifier of Derived Class Member

[sangram2681]

Consider Code Sample Below of a simple console application.

namespace AccessiblityAndMemberClass
{
    class Program
    {
        static void Main(string[] args)
        {
        }
    }

    class MyBaseClass
    {
         protected virtual string GetClassName()
        { 
          return "MyBaseClass";
        }
    }
    class MyDerivedClass : MyBaseClass
    {
        public override string GetClassName()
        {
            return "MyDerivedClass";
        }
    }
   
}

Here MyBaseClass is Base class having protected virtual method "GetClassName",now when "MyDerivedClass" class  which inherit from  "MyBaseClass"  try to override this method by widening access modifier  code doesn't compile 

  This Scenario explains in derived class can't widen restrictive access modifier  if specified in Base class.

Now consider one more code sample

   class MyBaseClass1
    {
         public virtual string GetClassName()
        {
            return "MyBaseClass";
        }
    }
    class MyDerivedClass1 : MyBaseClass1
    {
         override string GetClassName()
        {
            return "MyDerivedClass";
        }
    }

Here I tried to restrict access modifiers in derived class for method GetClassName that one is also not allowed.

Moral of the story is in csharp keep access modifier of derived class member same as base class if member is virtual method/function.