public string GetGioLenXe(string maDiemDi, string maDiemDen, int maChuyen, int maTramLen)
{
using (QLXeKhachEntities context = new QLXeKhachEntities())
{
return(context.sp_GetGioLenXe(maDiemDi, maDiemDen, maChuyen, maTramLen).FirstOrDefault());
}
}