void OnGroceryListChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) { // Update item count this.ItemCount = this.OBProductList.Count; // Resequence list SequencingService.SetCollectionSequence(this.OBProductList); }
private void Initialize() { // Initialize commands this.DeleteItem = new DeleteItemCommand(this); // Create grocery list p_ProductList = new ObservableCollection <Product>(); // Subscribe to CollectionChanged event p_ProductList.CollectionChanged += OnGroceryListChanged; // Initialize list index this.OBProductList = SequencingService.SetCollectionSequence(this.OBProductList); // Update bindings base.RaisePropertyChangedEvent("OBProductList"); }
void OnProductListChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) { this.ItemCount = this.p_ProductList.Count; // Resequence list SequencingService.SetCollectionSequence(this.p_ProductList); /* * double totalPrice = 0; * ObservableCollection<Product> obsColl = p_ProductList; * foreach (Product data in obsColl) * { * double subtotal = data.UnitPrice * data.Quantity; * totalPrice = totalPrice + subtotal; * } * this._totalPrice = totalPrice; */ base.RaisePropertyChangedEvent("TotalPrice"); }
public ViewModel() { _totalPrice = 0; if (null == p_ProductList) { GetProductDetails(); this.AddItem = new AddItemCommand(this); this.PrintInvoice = new PrintInvoiceCommand(this); // Create grocery list p_ProductList = new ObservableCollection <Product>(); // Subscribe to CollectionChanged event p_ProductList.CollectionChanged += OnProductListChanged; // Initialize list index this.OBProductList = SequencingService.SetCollectionSequence(this.OBProductList); // Update bindings base.RaisePropertyChangedEvent("OBProductList"); } }