exTest/Test/ViewModel.cs

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace test
{
    class ViewModel
    {
        public List<Books> books;
        public ViewModel()
        {
            books = newbooks();
        }
        public List<Books> newbooks()
        {
            List<Books> allbooks = new List<Books>();
            List<Books> bdbooks = Base.Entities.Books.ToList();
            Books buff;
            foreach(Books books in bdbooks)
            {
                buff = new Books();
                buff.IdBook = books.IdBook;
                buff.Title = books.Title;
                buff.Genre = books.Genre;
                buff.Author = books.Author;
                buff.des = "Описание: " + books.Description;
                buff.Image = books.Image;
                buff.CountInStock = books.CountInStock;
                buff.CountInStore = books.CountInStore;
                buff.Cost = books.Cost;

                Authors authors = Base.Entities.Authors.FirstOrDefault(x => x.IdAuthor == books.Author);
                buff.nameAuttor = authors.Name;
                Genre genre = Base.Entities.Genre.FirstOrDefault(x => x.IdGenre == books.Genre);
                buff.titleGenre = genre.Genre1;

                if(books.CountInStock > 5)
                {
                    buff.Stock = "many";
                }
                else if(books.CountInStock == 0)
                {
                    buff.Stock = "no";
                }
                else
                {
                    buff.Stock = books.CountInStock;
                }
                allbooks.Add(buff);
            }
            return allbooks;
        }
    }
}