public ThongTinSuKien GetSuKienByID(int id)
        {
            DataTable data = DataProvider.Instance.ExecuteQuery("SELECT * FROM dbo.SuKien, dbo.LienHe WHERE SuKien.idLienHe = LienHe.id AND SuKien.id = " + id);

            if (data.Rows.Count > 0)
            {
                ThongTinSuKien thongTin = new ThongTinSuKien(data.Rows[0]);
                return(thongTin);
            }

            return(null);
        }
        private void BtnChitietSuKien_Click(object sender, EventArgs e)
        {
            Button btn = sender as Button;

            ThongTinSuKien thongTin = SuKienDAO.Instance.GetSuKienByID((int)btn.Tag);

            txbTenSuKien.Text     = thongTin.TenSuKien;
            rtNoiDungSuKien.Text  = thongTin.NoiDungchiTiet;
            dtpkNgayBatDau.Value  = thongTin.ThoiGianBatDau;
            dtpkNgayKetThuc.Value = thongTin.ThoiGianKetThuc;
            rtThanhPhan.Text      = thongTin.SoLuongSinhVien;
            rtDiaDiem.Text        = thongTin.DiaDiemToChuc;
            rtHoTroMuonDo.Text    = thongTin.HoTroMuonDol;
            cbNguoiPhuTrach.Text  = thongTin.TenLienHe;
            txbSoDienThoai.Text   = thongTin.SoDienThoai;

            btnCapNhatSuKien.Tag = thongTin.ID;
            btnXoaSuKien.Tag     = thongTin.ID;
        }