public void RemoveProduct(Contracts.IProduct product)
{
Validator.CheckIfNull(products);
this.products.Remove(product);
}
public bool ContainsProduct(Contracts.IProduct product)
{
Validator.CheckIfNull(products);
return(this.products.Contains(product));
}
public void AddProduct(Contracts.IProduct product)
{
Validator.CheckIfNull(products);
this.products.Add(product);
}