public static WeightedDishList Parse(XElement xml)
{
if (xml == null || xml.Name != typeof(WeightedDishList).Name)
{
throw new ArgumentException();
}
WeightedDishList result = new WeightedDishList();
foreach (var item in xml.Elements(typeof(WeightedDish).Name))
{
WeightedDish ingredient = WeightedDish.Parse(item);
result.Add(ingredient);
}
return(result);
}