PocketBook/src/BookApp/ViewModel/SearchViewModel.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using BookApp.Data;
using System.Windows.Input;
using BookApp.Model;
using System.Collections.ObjectModel;

namespace BookApp.ViewModel
{
    public class SearchViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        public ObservableCollection<Book> BookCollection { get; set; } =
          new ObservableCollection<Book>();

        protected virtual void NotifyPropertyChanged([CallerMemberName] string propertyName = "")
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
/*
        public ICommand PerformSearch => new Command<string>((string query) =>
        {
            //SearchResults = DataService.GetSearchResults(query);
            SearchResults = BookCollection = BookCollection.Select(query);
        });

        private List<string> searchResults = BookCollection.GetStubData();
        public List<string> SearchResults
        {
            get
            {
                return searchResults;
            }
            set
            {
                searchResults = value;
                NotifyPropertyChanged();
            }
        }*/
    }
}