public TodoItemViewModel(TodoItem todoItem)
{
this.Model = todoItem;
this.Title = this.Model
.ToReactivePropertyAsSynchronized(x => x.Title)
.SetValidateAttribute(() => this.Title);
this.Completed = this.Model
.ToReactivePropertyAsSynchronized(x => x.Completed);
this.ForegroundBrush = this.Model
.ObserveProperty(x => x.Completed)
.Select(x => x ? new SolidColorBrush(Colors.DarkGray) : new SolidColorBrush(Colors.Black))
.Select(x => (Brush)x)
.ToReadOnlyReactiveProperty();
this.HasErrors = Observable.CombineLatest(
this.Title.ObserveHasErrors,
this.Completed.ObserveHasErrors)
.Select(x => x.Any(y => y))
.ToReadOnlyReactiveProperty();
}
public void AddTodoItem(TodoItem todoItem)
{
this.AllTodoItems.Add(todoItem);
}
