private void btnSonBesTarih_Click(object sender, EventArgs e)
{
List<Order> orders = new Order().GetOrders();
dataGridView1.DataSource = null;
dataGridView1.DataSource = orders.OrderByDescending(x => x.OrderID).Take(5).Select(x => new
{
x.OrderID,
x.Customer.ContactName,
x.OrderDate
}).ToList();
}
