public Dashboard(UserData u)
{
InitializeComponent();
this.user = u;
bookHistory = new BookCatalog();
bookCart = new BookCart();
dsBookHistory = bookHistory.load_History(user.UserID);
this.DataContext = dsBookHistory.Tables["History"];
cart_val.Content = "" + bookCart.cartItems(user.UserID);
total_books.Content = "" + bookCart.totalBooks(user.UserID);
total_money.Content = "$" + bookCart.totalPrice(user.UserID);
}