interface iAnimal

{

    bool Load(int Id);

    bool Save();

}



class Fish : iAnimal

{
    private string description;


    public string Description

    {
         get { return this.description; }
         set { this.description = value; }

    }

    public bool Load(int Id)
    {
        ...
    }



    public bool Save()

    {

        ...

    }

}







class Dog : iAnimal


{
    private string description;

    private string hypernessLevel;




    public string Description


    {

         get { return this.description; }

         set { this.description = value; }


    }



    public string hypernessLevel



    {


         get { return this.hypernessLevel; }


         set { this.hypernessLevel = value; }



    }



    public bool Load(int Id)

    {

        ...

    }






    public bool Save()


    {


        ...


    }


}


iAnimal animal;

Switch (TypeOfAnimal)
{
    case "Fish":
        animal = new Fish();
        break;
    case "Dog":

        animal = new Dog();

        break;
}

txtDescription.Text = animal.Description //How would you expose description and dog's hpernessLeve?