public void OnNavigatedTo(INavigationParameters parameters)
{
if (parameters.GetNavigationMode() == NavigationMode.Back)
{
if (Incomes != null && _incomesCount != Incomes.Count)
{
Incomes = new ObservableCollection <Income>(Incomes.OrderByDescending(income => income.Date));
}
}
}
/// <summary>
/// Initialises this instance ready for use. This should be done after loading the model from persistence.
/// </summary>
/// <exception cref="ValidationWarningException">The model is invalid. + builder</exception>
protected virtual void Initialise()
{
Expenses = Expenses.OrderByDescending(e => e.Amount).ToList();
Incomes = Incomes.OrderByDescending(i => i.Amount).ToList();
var builder = new StringBuilder();
if (!Validate(builder))
{
// Consumer should have already called validate and resolved any issues before calling Update+Initialise.
throw new ValidationWarningException("The model is invalid. " + builder);
}
}