private async Task Delete(PositionViewModel _position)
{
// Delete position
if (await _pageService.DisplayAlert("Warning", $"Are you sure you want to delete {_position.Name}?", "Yes", "No"))
{
TotalPrice = -_position.Price;
PositionOrderViewModel.Remove(_position);
}
}
private async Task AddPosition()
{
var viewModel = new AddNewPositionPageViewModel(_userBase, _pageService);
// If new position added change list and change total price
viewModel.PosAdded += (source, newPosition) =>
{
PositionOrderViewModel.Add(new PositionViewModel(newPosition));
TotalPrice = PositionOrderViewModel[PositionOrderViewModel.Count - 1].Price;
};
await _pageService.PushAsync(new AddNewPositionPage(viewModel));
}
private async Task MakeOrder()
{
// The bill:
string tmp = "";
foreach (var pos in PositionOrderViewModel)
{
tmp += pos.Name + " " + pos.Description + " -" + pos.Price + "$\n";
}
tmp += "----------------------------------------\n";
tmp += "Total price: " + TotalPrice.ToString() + "$";
await _pageService.DisplayAlert("Your order", tmp, "OK");
// Clear all fields
PositionOrderViewModel.Clear();
TotalPrice = -TotalPrice;
}