public ShoppingCartViewModel(IContainerProvider provider, IEventAggregator eventAggregator, INavigationService navigationService)
{
EventAggregator = eventAggregator;
Navigation = navigationService;
ShoppingCartService = provider.Resolve <IShoppingCartService>();
ContinueShoppingCommand = new DelegateCommand(() => { }, () => CanContinue)
.ObservesProperty(() => TotalPrice);
CartContents = ShoppingCartService.CartContents;
EventAggregator.GetEvent <AddToCartEvent>()
.Subscribe((AddToCartEventArgs newEntry) => {
var existing = ShoppingCartService.CartContents.FirstOrDefault(element => element.Sku == newEntry.Product.sku);
if (existing == null)
{
var newOne = new ProductViewModel(newEntry.Product, Navigation)
{
Quantity = newEntry.Quantity
};
CartContents.Add(newOne);
}
else
{
existing.Quantity = newEntry.Quantity;
}
RaisePropertyChanged(nameof(TotalPrice));
RaisePropertyChanged(nameof(CanContinue));
});
}
private void AddToCartClicked(object obj)
{
Warning = "";
Service selectedService = ServiceDisplayVM.SelectedService;
if (ServiceDisplayVM.SelectedService == null)
{
Warning = "Please select a service.";
MessageBox.Show("Please select a service");
return;
}
Total += int.Parse(selectedService.Service_Cost);
CartContents.Add(selectedService);
}
//adds selected pet and specified quantity
// to user shopping cart.
private void AddToCartClicked(object obj)
{
ContentControl cc = selectedControl.Content as ContentControl;
ListBox lb = cc.Content as ListBox;
int purchasedAmount = int.Parse(Quantity);
if (selectedControl.Header.ToString() == "Pets")
{
Pets selectedPet = lb.SelectedItem as Pets;
if (selectedPet.Stock - purchasedAmount >= 0)
{
selectedPet.Stock -= purchasedAmount;
selectedPet.PurchasedAmount = purchasedAmount;
CartContents.Add(selectedPet as object);
TotalCost += double.Parse(selectedPet.Price.ToString().Replace("$", "")) * purchasedAmount;
}
else
{
MessageBox.Show("Not enough items in stock to purchase");
}
}
else
{
Supplies selectedItem = lb.SelectedItem as Supplies;
if (selectedItem.Stock - purchasedAmount >= 0)
{
selectedItem.Stock -= purchasedAmount;
selectedItem.PurchasedAmount = purchasedAmount;
CartContents.Add(selectedItem as object);
TotalCost += double.Parse(selectedItem.Price.ToString().Replace("$", "")) * purchasedAmount;
}
else
{
MessageBox.Show("Not enough items in stock to purchase");
}
}
}