Virtual Accessor : Virtual : Class C# Examples

    
using  System;

public  class  Class1  {
        public  static  void  Main(string[]  strings)  {
                MyMoney  dm  =  new  MyMoney();
                dm.CurrencyValue  =  2.50M;
                Console.WriteLine(dm.CurrencyValue);

                Dollar  dollar  =  new  Dollar();
                dollar.InitDollar(1.2M);

                dollar.EuroValue  =  dm.EuroValue;
                Console.WriteLine(dollar.CurrencyValue);

                dollar.CurrencyValue  =  2  *  dollar.CurrencyValue;
                dm.EuroValue  =  dollar.EuroValue;
                Console.WriteLine(dm.CurrencyValue);

        }
}

abstract  public  class  Currency  {
        private  decimal  mEuroValue  =  0M;  //  [Euro]

        public  abstract  decimal  CurrencyValue  {  get;  set;  }
        public  decimal  EuroValue  {
                get  {
                        return  mEuroValue;
                }
                set  {
                        mEuroValue  =  value;
                }
        }
}

public  class  MyMoney  :  Currency  {
        private  static  decimal  mDMtoEuro  =  1.96M;
        public  override  decimal  CurrencyValue  {
                get  {  return  EuroValue  *  mDMtoEuro;  }
                set  {  EuroValue  =  value  /  mDMtoEuro;  }
        }
}

public  class  Dollar  :  Currency  {
        public  decimal  mDollartoEuroConversion;

        public  void  InitDollar(decimal  mDollartoEuro)  {
                mDollartoEuroConversion  =  mDollartoEuro;
        }

        public  override  decimal  CurrencyValue  {
                get  {  return  EuroValue  *  mDollartoEuroConversion;  }
                set  {  EuroValue  =  value  /  mDollartoEuroConversion;  }
        }
}