public ActionResult ListBill(int kh_id)
{
BillDao db = new BillDao();
List <BillViewModel> list = db.ListBill(kh_id);
ViewData["list"] = list;
var check = list.Count();
if (check > 0)
{
ViewBag.status = true;
}
else
{
ViewBag.status = false;
}
return(View());
}