public void AddCat(ICopyCat <T> cat)
{
if (cat == null)
{
throw new ArgumentNullException("Cats of a CopyCatHandler set by AddCat() cannot be null.");
}
if (!HasCat(cat))
{
_CopyCats.Add(cat);
}
}
public bool HasCat(ICopyCat <T> cat)
{
return(_CopyCats.Contains(cat));
}
public void RemoveCat(ICopyCat <T> cat)
{
_CopyCats.Remove(cat);
}
