Hierarchy of Classes in C#

Question

Hello there! I have this set of classes:
Node (SUPER Class)
|------ NodeType1 (Class)
|----------NodeType2 (Class)

There are fields that the type1 and type2 have in common (For example: NAME). If i declare the NAME field in the SUPER class (Node) how should I access those variables in the types classes? How can i make those property's? Thank you for your time

Answer 1

class Node
{
    public string Name { get; set; }
}

class NodeType1 : Node
{
    void SomeMethod()
    {
        string nm = base.Name;
    }
}

class NodeType2 : NodeType1
{
    void AnotherMethod()
    {
        string nm = base.Name;
    }
}

Answer 2

You can access this field just the way you usually get access to the field, typing this.fieldName, for instance. Don't forget to mark this field as protected to be visible in inheritors or public to be visible both in inheritors and from outside the class.

class Node
{
    protected string protectedName;
}

class NodeType1 : Node
{
    public string Name
    {
        get
        {
            return protectedName;
        }
    }
}

class NodeType2 : NodeType1
{
    protected void Foo()
    {
        string bar = Name;
    }
}

Answer 3

If the access modifier of the name field is public or protected you will be able to access it in your derived classes. The modifier public will make it visible to all other classes, while protected will restrict visibility to the derived classes.

In either case you can just access it as you would a field declared in the current class:

this._name = "New Name";

If you wish to make it a property then set it's access modifier accordingly:

public class Node
{
     protected string Name { get; set; }
}