public void Insert()
        {
            //Inserts the books from the data grid into the db
            try
            {
                Model1Container2 db = new Model1Container2();


                foreach (var book in booksRead)
                {
                    BookTBL newBook = new BookTBL()
                    {
                        Author = $"{book.Author}", Title = $"{book.Title}", AuthorTBLId = 1
                    };

                    db.BookTBLs.Add(newBook);
                    db.SaveChanges();
                }
            }
            catch (NullReferenceException nre)
            {
                MessageBox.Show(nre.Message);
            }
            catch (Exception)
            {
                MessageBox.Show("An error inserting into the database occurred");
            }
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            //Load books
            Model1Container2 db = new Model1Container2();

            var query = from b in db.BookTBLs
                        select b;

            dataGrid_read.ItemsSource = query.ToList();
        }