/// <summary>
/// Called when the 'Entries' list in the shopping cart changes.
/// </summary>
private void OnShoppingCartEntriesChanged(ShoppingCart sender, ShoppingCartEntriesChangedEventArgs args)
{
if (!_isLoaded)
{
return;
}
switch (args.Type)
{
case ShoppingCartEntriesChangedType.EntryAdded:
var entryViewModel = new ShoppingCartEntryViewModel(this.ShoppingCart, this.ShoppingCart.Entries[args.Index]);
_entries.Insert(args.Index, entryViewModel);
break;
case ShoppingCartEntriesChangedType.EntryRemoved:
_entries.RemoveAt(args.Index);
break;
case ShoppingCartEntriesChangedType.EntryUpdated:
_entries[args.Index].Update(this.ShoppingCart.Entries[args.Index]);
break;
case ShoppingCartEntriesChangedType.EntriesReset:
default:
ResetEntries();
break;
}
}
/// <summary>
/// Called when the 'Entries' list in the shopping cart changes.
/// </summary>
private void OnShoppingCartEntriesChangedCallback(ShoppingCart sender, ShoppingCartEntriesChangedEventArgs args)
{
_uiDispatcher.RunAsync(
CoreDispatcherPriority.Normal,
() =>
{
OnShoppingCartEntriesChanged(sender, args);
});
}
/// <summary>
/// Called when the 'Entries' list has changed, so that listeners can be notified.
/// </summary>
private void RaiseEntriesChangedEvent(ShoppingCartEntriesChangedType type, int itemIndex = -1)
{
// Update 'CostsSummary' property.
UpdateCostsSummary();
// Invoke public event.
var args = new ShoppingCartEntriesChangedEventArgs(type, itemIndex);
this.EntriesChanged?.Invoke(this, args);
}
/// <summary>
/// Called when the entries list in the shopping cart has been changed.
/// </summary>
private void ShoppingCartEntriesChanged(ShoppingCart sender, ShoppingCartEntriesChangedEventArgs args)
{
UpdateGeneratedFields();
}
