Question

If i have a ClassA

    public class ClassA
    {
        public string name;
    }

Where Attribute Name is Public ,and it can be modified from Anywhere .
Than i have a ClassB

    public class ClassB : ClassA
    {
        private string name;//But it's not Woking ,name is still public
    }

…which Inherit’s ClassA ,but i need at ClassB to make name as Private Field.
So if i create an Object of Type ClassB than ClassB.name cannot be modified .

Answer 1

just don’t publish the field but accessors:

public class ClassA
{
    private string _name;
    public string Name { get { return _name; } protected set { _name = value; } }
}

public class ClassB : ClassA
{
  /* nothing left to do - you can set Name in here but not from outside */
}