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DatabaseConnection/ViewModel/BookViewModel.cs

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+using DatabaseConnection.Model;
+using DatabaseConnection.Services;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+
+namespace DatabaseConnection.ViewModel
+{
+    public class BookViewModel : INotifyPropertyChanged
+    {
+        private readonly BookService _bookService;
+
+        public ObservableCollection<Book> Books { get; set; } = [];
+
+        public BookViewModel(BookService bookService)
+        {
+            _bookService = bookService;
+            LoadBooksCommand = new Command(async () => await LoadBooks());
+        }
+
+        public Command LoadBooksCommand { get; }
+
+        private async Task LoadBooks()
+        {
+            Books.Clear();
+            var books = await _bookService.GetBooks();
+            foreach (var book in books)
+            {
+                Books.Add(book);
+            }
+        }
+
+        public event PropertyChangedEventHandler? PropertyChanged;
+        public void OnPropertyChanged(string propertyName)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}