public void LoadChiTietTin()
        {
            int idTinTuc = Convert.ToInt32(Request.QueryString["id"]);
            WebPortal.Model.TinTuc tinTuc = GetNews(idTinTuc);
            WebPortal.Model.LoaiTin loaiTin = GetLoaiTin(tinTuc.IDLoaiTin);
            WebPortal.LoaiTin lt = new LoaiTin();
            List<string> list = new List<string>();
            foreach (WebPortal.Model.LoaiTin l in lt.All())
            {
                list.Add(l.TenLoai);
            }
            dropDownListLoaiTin.DataSource = list;

            for (int i = 0; i < list.Count; i++)
            {
                if (list[i] == loaiTin.TenLoai)
                {
                    dropDownListLoaiTin.SelectedIndex = i;
                }
            }

            dropDownListLoaiTin.DataBind();
            titleNews.Text = tinTuc.TenTinTuc;
            ImageUpLoad.ImageUrl = "~/" + tinTuc.HinhAnh;
            summary.Text = tinTuc.MoTaTinTuc;
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            if (IsPostBack != true)
            {
                List<WebPortal.Model.LoaiTin> list = new List<Model.LoaiTin>();
                WebPortal.LoaiTin loai = new LoaiTin();
                list = loai.All();
                List<string> listLoai = new List<string>();
                for (int i = 0; i < list.Count; i++)
                {
                    listLoai.Add(list[i].TenLoai);
                }

                dropDownListLoaiTin.DataSource = listLoai;
                dropDownListLoaiTin.DataBind();
            }
        }
 private int GetIDLoaiTinFollowTenLoai(string tenLoai)
 {
     List<WebPortal.Model.LoaiTin> list = new List<Model.LoaiTin>();
     WebPortal.LoaiTin loai = new LoaiTin();
     list = loai.All();
     foreach (WebPortal.Model.LoaiTin l in list)
     {
         if (l.TenLoai == tenLoai)
             return l.IDLoaiTin;
     }
     return -1;
 }
 public List<WebPortal.Model.LoaiTin> GetAllLoaiTin()
 {
     WebPortal.LoaiTin loaiTin = new LoaiTin();
     return loaiTin.All();
 }