Overrideing variables

Adam Turner

Hello,
I'm trying to figure out how to override variables spawned in a derived class that are declared in a base class.

For instance:

public class construct
{

public bool DENSITY = false;

}
public class mob : construct
{
DENSITY = true;
}

Is this possible with some sort of modifier or something, or do I have to change DENSITY in a method/function/procedure/sub-routine (what name do C# programmers use?) in the derived class?

2 Replies

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Alan19y ago
FWIW, you can hide a variable declared in a parent class by declaring a similarly named variable in a child class and preceding it with the 'new' keyword.

You can still access the parent class variable either by using a cast or (within the child class code) by using the 'base' keyword. For example:

using System;

class Program
{
     static void Main()
     {
        mob m = new mob();
        Console.WriteLine(m.DENSITY); // true
        Console.WriteLine(((construct)m).DENSITY); // false
        Console.WriteLine(m.BaseDensity); // false
        m.BaseDensity = true;
        Console.WriteLine(m.BaseDensity); // true
        Console.ReadLine();
     }
}

public class construct
{

   public bool DENSITY = false;

}

public class mob : construct
{
   public new bool DENSITY = true;

   public bool BaseDensity
   {
      get {return base.DENSITY;}
      set {base.DENSITY = value;}
   }
}
Jan Montano19y ago
You have to change it in a method. For exposing public variables, it's better to expose it as properties instead. IMHO.