private void btnprovbill_Click(object sender, RoutedEventArgs e)
{
Checkout1 co = new Checkout1();
co.ROOM_NO = roomno;
d1 = co.guestinfo();
d2 = co.ROOMCATEGORY();
d3 = co.checkoutdetails();
d4 = co.company_contact();
id = co.get_checkout_id();
// ********** For Report *******************
// ReportDocument rrr = new ReportDocument();
//rrr.Load("../../Checkoutreport.rpt");
// Checkout1 co1 = new Checkout1();
// DataTable hotel2 = co1.GET_HOTELADDRESS();
//rrr.Subreports[0].SetDataSource(hotel2);
//rrr.SetDataSource(Checkout1.dt);
//rrr.PrintToPrinter(1, false, 0, 0);
}