public static BaiTapDto[] LayBaiTapTheoTieuDeVanBan(string filename, string tieude)
{
ArrayList myList = new ArrayList();
BaiTapDto[] danh_sach_bai_tap;
XmlDocument tai_lieu = LT_XML.Doc(filename);
XmlNodeList danh_sach_van_ban = tai_lieu.GetElementsByTagName("VANBAN");
foreach (XmlElement vb in danh_sach_van_ban)
{
if (vb.GetAttribute("TieuDe") == tieude)
{
XmlNode nut_dh = vb.NextSibling;
foreach (XmlElement nut_bt in nut_dh.ChildNodes)
{
BaiTapDto bt = Khoi_Tao(nut_bt);
myList.Add(bt);
}
break;
}
}
danh_sach_bai_tap = (BaiTapDto[])myList.ToArray(typeof(BaiTapDto));
return(danh_sach_bai_tap);
}
public static string[] LayNoiDungCauHoi(BaiTapDto bt)
{
ArrayList myList = new ArrayList();
foreach (CauHoiTuLuanDto ch in bt.DanhSachCauHoiTuLuan)
{
string nd = ch.NoiDung;
myList.Add(nd);
}
string[] danh_sach_cau_hoi = (string[])myList.ToArray(typeof(string));
return(danh_sach_cau_hoi);
}
public static BaiTapDto Khoi_Tao(XmlElement nut)
{
BaiTapDto kq = new BaiTapDto();
kq.SoTT = int.Parse(nut.GetAttribute("SoThuTu"));
kq.DanhSachCauHoiTuLuan = new ArrayList();
foreach (XmlElement nut_con in nut.ChildNodes)
{
CauHoiTuLuanDto chtl = CauHoiTuLuanDao.Khoi_tao(nut_con);
kq.DanhSachCauHoiTuLuan.Add(chtl);
}
return(kq);
}
