public BookManagerView()
 {
     InitializeComponent();
     this.viewModel_ = new BookManagerViewModel();
     this.BookListDataGrid_.ItemsSource = this.viewModel_.BookList_;
 }
 public BookManagerView()
 {
     InitializeComponent();
     this.viewModel_ = new BookManagerViewModel();
     this.BookListDataGrid_.ItemsSource = this.viewModel_.BookList_;
 }