void EditExpensePage_Loaded(object sender, RoutedEventArgs e)
{
// Setting databindings
int selectedExpenseIndex = int.Parse(this.NavigationContext.QueryString["selectedIndex"]);
selectedExpense = Expenses.Instance.All[selectedExpenseIndex];
EditExpenseGrid.DataContext = selectedExpense;
}
private void Click_Save(object sender, EventArgs e)
{
double newAmount;
if (double.TryParse(AmountTextBox.Text, out newAmount))
{
selectedExpense.Amount = newAmount;
selectedExpense.Description = DescriptionTextBox.Text;
selectedExpense = null;
Expenses.Instance.Serialize();
NavigationService.GoBack();
return;
}
else
{
MessageBox.Show("Invalid format entered for amount.");
}
}
public void Add(Expense expense)
{
_expenseList.Add(expense);
NotifyPropertyChanged("Balance");
NotifyPropertyChanged("All");
}