C# Use base class property value in a derived class property override

Question

My class structure is as follows:

public class Animal
{
    private int _animalId;

    public virtual int AnimalId
    {
        get { return _animalId; }
    }
}

public class Dog : Animal
{
    public override int AnimalId
    {
        get 
        { 
            if (Request.Params["New_Animal"] == "true")
                return -1;
            else
                return AnimalId;
        }
    }
}

I would like to override the AnimalId property as follows: if it is a new animal the id should be -1, but if we are updating an existing animal I would like to return the AnimalId from the base class.

This is an extremely simplified example, but I'm wondering if / how this can be done.

Thanks

Answer 1

Use base.AnimalId

public class Animal
{
    private int _animalId;

    public virtual int AnimalId
    {
        get { return _animalId; }
    }
}

public class Dog : Animal
{
    public override int AnimalId
    {
        get 
        { 
            if (Request.Params["New_Animal"] == "true")
                return -1;
            else
                return base.AnimalId;
        }
    }
}