//return selected customer and his rented books
private void CustomerSelected(object sender, EventArgs e)
{
lblBookPriceCount.Content = 0;
lbldelayCount.Content = 0;
lblOrderSummaryCount.Content = 0;
dgCustomerReturnBook.Items.Clear();
returnRentedBookLists.Clear();
customer = sender as Customer;
if (customer != null)
{
tbCustomerName.Text = customer.FullName;
rentedBooks = dr.SearchRentedBook(customer.Id);
this.dgCustomerTackedBook.Items.Clear();
foreach (ReturnRentedBookList book in rentedBooks)
{
this.dgCustomerTackedBook.Items.Add(book);
}
}
}