private void LoadFromBillProvider()
{
foreach (Bill bill in billProvider.Items)
{
var billViewModel = viewModelFactory.CreateBillViewModel(bill);
allBills.Add(billViewModel);
}
}
public BillListViewModel(IDatabaseProvider <Bill> billProvider,
IViewModelFactory viewModelFactory,
ISelectedExpenseProvider selectedExpense
)
{
this.billProvider = billProvider;
this.selectedExpense = selectedExpense;
this.viewModelFactory = viewModelFactory;
LoadFromBillProvider();
selectedExpense.SelectedExpenseChanged += (sender, e) =>
{
OnPropertyChanged(new PropertyChangedEventArgs(nameof(Bills)));
};
billProvider.DatabaseChanged += (sender, e) =>
{
if (e.ChangedAction == ChangedAction.Add)
{
allBills.Add(viewModelFactory.CreateBillViewModel(e.DataItem));
}
else if (e.ChangedAction == ChangedAction.Remove)
{
foreach (BillViewModel bill in allBills)
{
if (bill.Name.Equals(e.DataItem.Name))
{
allBills.Remove(bill);
break;
}
}
}
OnPropertyChanged(new PropertyChangedEventArgs(nameof(Bills)));
};
}
