如何将LINQ表绑定到gridview？

Question

我正在尝试建立一个预订系统，其中所有客户名称都可以显示与特定预订相关联，一旦输入预订ID，我有一个linq表，我不知道如何连接SQL数据库并在gridview上显示，这是我的代码

public partial class BookingGuests : System.Web.UI.Page
{
    private HotelConferenceEntities datacontext = new HotelConferenceEntities();



    private void Page_Load(object sender, EventArgs e)
    {
        if (Page.IsPostBack)
        {


                int id = int.Parse(BookID.Text.ToString());
                tblBooking booking = datacontext.tblBookings.SingleOrDefault(x => x.BookingID == id);

                tblVenue venue = datacontext.tblVenues.SingleOrDefault(x => x.VenueID == booking.Venue);


                List<tblCustomer> customers = new List<tblCustomer>();
                List<tblBookingGuest> guests = booking.tblBookingGuests.ToList();



                    foreach (tblBookingGuest guest in guests)
                    {
                        tblCustomer newcust = datacontext.tblCustomers.SingleOrDefault(x=>x.CustomerID == guest.CustomerID);
                        customers.Add( newcust);


                    }

                    int count = customers.Count;
                    GridView1.DataSource = customers;
                    GridView1.DataBind();