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DatabaseConnection/ViewModel/ReadersViewModel.cs

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+using DatabaseConnection.Model;
+using DatabaseConnection.Services;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+
+namespace DatabaseConnection.ViewModel
+{
+    public class ReadersViewModel : INotifyPropertyChanged
+    {
+        private readonly ReaderService _readerService;
+
+        public ObservableCollection<Reader> Readers { get; set; } = [];
+
+        public ReadersViewModel(ReaderService readerService)
+        {
+            _readerService = readerService;
+            LoadReadersCommand = new Command(async () => await LoadReaders());
+        }
+
+        public Command LoadReadersCommand { get; }
+
+        private async Task LoadReaders()
+        {
+            Readers.Clear();
+            var readers = await _readerService.GetReaders();
+            foreach (var reader in readers)
+            {
+                Readers.Add(reader);
+            }
+        }
+
+        public event PropertyChangedEventHandler? PropertyChanged;
+        public void OnPropertyChanged(string propertyName)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}