public int FSoBenhNhan(int idPhongKham, DateTime dt)
{
int kq = 0;
foreach (CTDKPhongKham b in tc.getDSCTDKPhongKham().Where(x => x.PhieuDKKham.NgayLap.Value.Date == dt.Date))
{
if (b.PhongKhamID == idPhongKham)
{
kq++;
}
}
return(kq);
}