private void Button_Click_Load(object sender, RoutedEventArgs e) { FileStream stream = File.OpenRead("C:\\Users\\Thomas\\Documents\\GitHub\\Serializer\\Test\\bin\\Debug\\test.txt"); StreamReader reader = new StreamReader(stream); manager.Unserialize <TestClass>(testClass, "Test", new XMLReader(reader)); reader.Close(); textBoxEntier.Text = testClass.entier.ToString(); }