private void BudgetItemChanged(object sender, NotifyCollectionChangedEventArgs e)
{
e.NewItems?.Cast <BudgetItem>().ToList().ForEach(item =>
{
var viewModel = new BudgetItemViewModel(item);
BudgetItems.Add(viewModel);
});
e.OldItems?.Cast <BudgetItem>().ToList().ForEach(item => BudgetItems.Remove(FindMatchingViewModel(item)));
}
public BudgetGroupViewModel(BudgetGroup budgetGroup)
{
BudgetGroup = budgetGroup;
presentation = new BudgetGroupPresentation();
budgetGroup.BudgetItems.CollectionChanged += BudgetItemChanged;
budgetGroup.BudgetItems.ToList().ForEach(item =>
{
var viewModel = new BudgetItemViewModel(item);
BudgetItems.Add(viewModel);
});
budgetGroup.PropertyChanged += (o, e) => PropertyChanged?.Invoke(this, e);
}
private void AddBudgetItemViewModel(BudgetItem item)
{
var itemViewModel = new BudgetItemViewModel(item);
BudgetItems.Add(itemViewModel);
}