public bool AddDish(Dish dish)//adds a dish
{
if (dish.Calories <= 0)
{
throw new Exception("dish calories not possible");
}
if (dish.dishNumber < 0)
{
throw new Exception("dish number not possible");
}
if (dish.dishPrice < 0 && dish.dishPrice > 1000)
{
throw new Exception("dish number not possible");
}
if (dish.Rate <= 0 && dish.Rate > 10)
{
throw new Exception("dish rate is in between 0 to 10");
}
return(dal.AddDish(dish));
}
