public MenuViewModel()
{
Headers = new List<Header>();
if (IsInDesignMode)
{
var header = new Header {Title = "Header"};
var meal = new Meal {Title = "Meal"};
header.Meals.Add(meal);
Headers.Add(header);
Meals = new List<Meal>(header.Meals);
Header = header;
}
else
{
using (var entities = new HillStationEntities())
{
foreach (var header in entities.Headers.Include(h => h.Meals).OrderBy(h => h.DisplayOrder).ToList())
{
Headers.Add(new Header(header));
}
}
}
Cancel = new RelayCommand(CancelUpdate);
SaveData = new RelayCommand(Save);
Decrement = new RelayCommand<string>(p => AdjustPrice(p, -0.05m));
Increment = new RelayCommand<string>(p => AdjustPrice(p, 0.05m));
}
public Meal(Meal meal)
{
Id = meal.Id;
HeaderId = meal.HeaderId;
MealNumber = meal.MealNumber;
Title = meal.Title;
Price = meal.Price;
ChickenPrice = meal.ChickenPrice;
LambPrice = meal.LambPrice;
VegetablePrice = meal.VegetablePrice;
PrawnPrice = meal.PrawnPrice;
KingPrawnPrice = meal.KingPrawnPrice;
DisplayOrder = meal.DisplayOrder;
}
/// <summary>
/// Initializes a new instance of the MainViewModel class.
/// </summary>
public MainViewModel(IDataService dataService, IWindowService windowService)
{
_dataService = dataService;
_windowService = windowService;
Headers = new List<Header>();
Meals = new List<Meal>();
OrderItems = new ObservableCollection<OrderItem>();
if (IsInDesignMode)
{
var orderItem = new OrderItem
{
Description = "Meal Description",
Price = 10.95M,
Notes = "These are meal notes"
};
OrderItems.Add(orderItem);
var header = new Header {Title = "Starters"};
Headers.Add(header);
var meal = new Meal
{
Price = 5m,
ChickenPrice = 5m,
KingPrawnPrice = 5m,
LambPrice = 5m,
PrawnPrice = 5m,
VegetablePrice = 5m,
Title = "This is a meal"
};
Meals.Add(meal);
OrderNumber = "A0001";
Address = "David McCallum" + Environment.NewLine + "10 Bingham Broadway" + Environment.NewLine +
"EH15 3JL" + Environment.NewLine + "07757 438 032";
}
OrderNumber = "A0001";
Address = "David McCallum" + Environment.NewLine + "10 Bingham Broadway" + Environment.NewLine +
"EH15 3JL" + Environment.NewLine + "07757 438 032";
OrderItems.CollectionChanged += UpdateTotals;
}
private void MakeAdjustment(Meal meal, string priceType, decimal amount)
{
switch (priceType)
{
case "Price":
if (meal.Price == 0 && amount < 0) return;
meal.Price = meal.Price + amount;
break;
case "Chicken":
if (meal.ChickenPrice == 0 && amount < 0) return;
meal.ChickenPrice = meal.ChickenPrice + amount;
break;
case "Lamb":
if (meal.LambPrice == 0 && amount < 0) return;
meal.LambPrice = meal.LambPrice + amount;
break;
case "Vegetable":
if (meal.VegetablePrice == 0 && amount < 0) return;
meal.VegetablePrice = meal.VegetablePrice + amount;
break;
case "Prawn":
if (meal.PrawnPrice == 0 && amount < 0) return;
meal.PrawnPrice = meal.PrawnPrice + amount;
break;
case "KingPrawn":
if (meal.KingPrawnPrice == 0 && amount < 0) return;
meal.KingPrawnPrice = meal.KingPrawnPrice + amount;
break;
}
}